ni Circulating Biomarker Score for Visceral Fat and Risks of Incident Colorectal and Postmenopausal Breast Cancer: The Multiethnic Cohort Adiposity Phenotype Study By cebp.aacrjournals.org Published On :: 2020-05-01T00:05:36-07:00 Background: Visceral adipose tissue (VAT) may play a greater role than subcutaneous fat in increasing cancer risk but is poorly estimated in epidemiologic studies. Methods: We developed a VAT prediction score by regression equations averaged across 100 least absolute shrinkage and selection operator models in a cross-sectional study of 1,801 older adults in the Multiethnic Cohort (MEC). The score was then used as proxy for VAT in case–control studies of postmenopausal breast (950 case–control pairs) and colorectal (831 case–control pairs) cancer in an independent sample in MEC. Abdominal MRI–derived VAT; circulating biomarkers of metabolic, hormonal, and inflammation dysfunctions; and ORs for incident cancer adjusted for BMI and other risk factors were assessed. Results: The final score, composed of nine biomarkers, BMI, and height, explained 11% and 15% more of the variance in VAT than BMI alone in men and women, respectively. The area under the receiver operator curve for VAT >150 cm2 was 0.90 in men and 0.86 in women. The VAT score was associated with risk of breast cancer [OR (95% confidence interval [CI]) by increasing tertiles: 1.00, 1.09 (0.86–1.39), 1.48 (1.16–1.89); Ptrend = 0.002] but not with colorectal cancer (P = 0.84), although an association [1.00, 0.98 (0.68–1.39), 1.24 (0.88–1.76); Ptrend = 0.08] was suggested for this cancer after excluding cases that occurred within 7 years of blood draw (Pheterogeneity = 0.06). Conclusions: The VAT score predicted risks of postmenopausal breast cancer and can be used for risk assessment in diverse populations. Impact: These findings provide specific evidence for a role of VAT in breast cancer. Full Article
ni Age at Diagnosis and Patient Preferences for Treatment Outcomes in AML: A Discrete Choice Experiment to Explore Meaningful Benefits By cebp.aacrjournals.org Published On :: 2020-05-01T00:05:36-07:00 Background: The recent expansion of treatment options in acute myeloid leukemia (AML) has necessitated a greater understanding of patient preferences for treatment benefits, about which little is known. Methods: We sought to quantify and assess heterogeneity of the preferences of AML patients for treatment outcomes. An AML-specific discrete choice experiment (DCE) was developed involving multiple stakeholders. Attributes included in the DCE were event-free survival (EFS), complete remission (CR), time in the hospital, short-term side effects, and long-term side effects. Continuously coded conditional, stratified, and latent-class logistic regressions were used to model preferences of 294 patients with AML. Results: Most patients were white (89.4%) and in remission (95.0%). A 10% improvement in the chance of CR was the most meaningful offered benefit (P < 0.001). Patients were willing to trade up to 22 months of EFS or endure 8.7 months in the hospital or a two-step increase in long-term side effects to gain a 10% increase in chance of CR. Patients diagnosed at 60 years or older (21.6%) more strongly preferred to avoid short-term side effects (P = 0.03). Latent class analysis showed significant differences of preferences across gender and insurance status. Conclusions: In this national sample of mostly AML survivors, patients preferred treatments that maximized chance at remission; however, significant preference heterogeneity for outcomes was identified. Age and gender may affect patients' preferences. Impact: Survivor preferences for outcomes can inform patient-focused drug development and shared decision-making. Further studies are necessary to investigate the use of DCEs to guide treatment for individual patients. Full Article
ni Li-Fraumeni Exploration Consortium Data Coordinating Center: Building an Interactive Web-Based Resource for Collaborative International Cancer Epidemiology Research for a Rare Condition By cebp.aacrjournals.org Published On :: 2020-05-01T00:05:36-07:00 Background: The success of multisite collaborative research relies on effective data collection, harmonization, and aggregation strategies. Data Coordination Centers (DCC) serve to facilitate the implementation of these strategies. The utility of a DCC can be particularly relevant for research on rare diseases where collaboration from multiple sites to amass large aggregate datasets is essential. However, approaches to building a DCC have been scarcely documented. Methods: The Li-Fraumeni Exploration (LiFE) Consortium's DCC was created using multiple open source packages, including LAM/G Application (Linux, Apache, MySQL, Grails), Extraction-Transformation-Loading (ETL) Pentaho Data Integration Tool, and the Saiku-Mondrian client. This document serves as a resource for building a rare disease DCC for multi-institutional collaborative research. Results: The primary scientific and technological objective to create an online central repository into which data from all participating sites could be deposited, harmonized, aggregated, disseminated, and analyzed was completed. The cohort now include 2,193 participants from six contributing sites, including 1,354 individuals from families with a pathogenic or likely variant in TP53. Data on cancer diagnoses are also available. Challenges and lessons learned are summarized. Conclusions: The methods leveraged mitigate challenges associated with successfully developing a DCC's technical infrastructure, data harmonization efforts, communications, and software development and applications. Impact: These methods can serve as a framework in establishing other collaborative research efforts. Data from the consortium will serve as a great resource for collaborative research to improve knowledge on, and the ability to care for, individuals and families with Li-Fraumeni syndrome. Full Article
ni Harnessing Population Pedigree Data and Machine Learning Methods to Identify Patterns of Familial Bladder Cancer Risk By cebp.aacrjournals.org Published On :: 2020-05-01T00:05:36-07:00 Background: Relatives of patients with bladder cancer have been shown to be at increased risk for kidney, lung, thyroid, and cervical cancer after correcting for smoking-related behaviors that may concentrate in some families. We demonstrate a novel approach to simultaneously assess risks for multiple cancers to identify distinct multicancer configurations (multiple different cancer types that cluster in relatives) surrounding patients with familial bladder cancer. Methods: This study takes advantage of a unique population-level data resource, the Utah Population Database (UPDB), containing vast genealogy and statewide cancer data. Familial risk is measured using standardized incidence risk (SIR) ratios that account for sex, age, birth cohort, and person-years of the pedigree members. Results: We identify 1,023 families with a significantly higher bladder cancer rate than population controls (familial bladder cancer). Familial SIRs are then calculated across 25 cancer types, and a weighted Gower distance with K-medoids clustering is used to identify familial multicancer configurations (FMC). We found five FMCs, each exhibiting a different pattern of cancer aggregation. Of the 25 cancer types studied, kidney and prostate cancers were most commonly enriched in the familial bladder cancer clusters. Laryngeal, lung, stomach, acute lymphocytic leukemia, Hodgkin disease, soft-tissue carcinoma, esophageal, breast, lung, uterine, thyroid, and melanoma cancers were the other cancer types with increased incidence in familial bladder cancer families. Conclusions: This study identified five familial bladder cancer FMCs showing unique risk patterns for cancers of other organs, suggesting phenotypic heterogeneity familial bladder cancer. Impact: FMC configurations could permit better definitions of cancer phenotypes (subtypes or multicancer) for gene discovery and environmental risk factor studies. Full Article
ni Screen to Save: Results from NCI's Colorectal Cancer Outreach and Screening Initiative to Promote Awareness and Knowledge of Colorectal Cancer in Racial/Ethnic and Rural Populations By cebp.aacrjournals.org Published On :: 2020-05-01T00:05:36-07:00 Background: The Center to Reduce Cancer Health Disparities (CRCHD), NCI, implemented Screen to Save, NCI's Colorectal Cancer Outreach and Screening Initiative to promote awareness and knowledge of colorectal cancer in racial/ethnic and rural populations. Methods: The initiative was implemented through CRCHD's National Outreach Network (NON). NON is a national network of Community Health Educators (CHE), aligned with NCI-designated Cancer Centers across the nation. In phases I and II, the CHEs focused on the dissemination of cancer-related information and implementation of evidence-based educational outreach. Results: In total, 3,183 pre/post surveys were obtained from male and female participants, ages 50 to 74 years, during the 347 educational events held in phase I. Results demonstrated all racial/ethnic groups had an increase in colorectal cancer–related knowledge, and each group strongly agreed that the educational event increased the likelihood that they would engage in colorectal cancer–related healthful behaviors (e.g., obtain colorectal cancer screening and increase physical activity). For phase II, Connections to Care, event participants were linked to screening. Eighty-two percent of the participants who obtained colorectal cancer screening during the 3-month follow-up period obtained their screening results. Conclusions: These results suggest that culturally tailored, standardized educational messaging and data collection tools are key change agents that can serve to inform the effectiveness of educational outreach to advance awareness and knowledge of colorectal cancer. Impact: Future initiatives should focus on large-scale national efforts to elucidate effective models of connections to care, related to colorectal cancer screening, follow-up, and treatments that are modifiable to meet community needs. Full Article
ni Labeling 3' Termini of Double-Stranded DNA Using the Klenow Fragment of E. coli DNA Polymerase I By cshprotocols.cshlp.org Published On :: 2020-05-01T06:29:31-07:00 The Klenow fragment, which retains the template-dependent deoxynucleotide polymerizing activity and the 3' -> 5' exonuclease of the holo-enzyme but lacks its powerful 5' -> 3' exonuclease activity, is used to fill recessed 3' termini of dsDNA. In this protocol, fragments suitable as templates for the end-filling reaction are produced by digestion of DNA with an appropriate restriction enzyme. The Klenow enzyme is then used to catalyze the attachment of dNTPs to the recessed 3'-hydroxyl groups. Full Article
ni Subtractive Immunization for Mice, Rats, and Hamsters By cshprotocols.cshlp.org Published On :: 2020-05-01T06:29:31-07:00 Subtractive immunization is useful for directing the immune response away from dominant epitopes to allow antibodies against less immunogenic antigens to be developed. It is also useful when there is a need to downplay the response to carriers added to peptides and recombinant proteins, such as Gst and Ig, to aid in production and purification. Subtractive immunization protocols also can be helpful if the target protein is part of a mixture (such as a cell lysate) or present on the surface of transfected cells. Full Article
ni Repetitive Immunization at Multiple Sites (RIMMS) of Mice, Rats, and Hamsters By cshprotocols.cshlp.org Published On :: 2020-05-01T06:29:31-07:00 The repetitive immunization at multiple sites (RIMMS) protocol capitalizes on the animal's innate immune system, which is genetically preprogrammed to recognize many antigens. By repetitively immunizing the animal, B cells that recognize the antigen are kept continuously expanding until the lymph nodes are harvested for hybridoma generation. This is a good method for making a more diverse repertoire of antibodies or antibodies directed against conformational epitopes. Full Article
ni Purification of Recombinant Adeno-Associated Virus 2 (rAAV2) by Heparin Column Affinity Chromatography By cshprotocols.cshlp.org Published On :: 2020-05-01T06:29:31-07:00 This protocol describes a simple single-step column purification (SSCP) of rAAV2 by gravity flow based on its affinity to heparin, without ultracentrifugation. Full Article
ni The Impact of One-week Dietary Supplementation with Kava on Biomarkers of Tobacco Use and Nitrosamine-based Carcinogenesis Risk among Active Smokers By cancerpreventionresearch.aacrjournals.org Published On :: 2020-05-04T05:35:14-07:00 Tobacco smoking is the primary risk factor for lung cancer, driven by the addictive nature of nicotine and the indisputable carcinogenicity of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) as well as other compounds. The integration of lung cancer chemoprevention with smoking cessation is one potential approach to reduce this risk and mitigate lung cancer mortality. Experimental data from our group suggest that kava, commonly consumed in the South Pacific Islands as a beverage to promote relaxation, may reduce lung cancer risk by enhancing NNK detoxification and reducing NNK-derived DNA damage. Building upon these observations, we conducted a pilot clinical trial to evaluate the effects of a 7-day course of kava on NNK metabolism in active smokers. The primary objective was to compare urinary total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL plus its glucuronides, major metabolites of NNK) before and after kava administration as an indicator of NNK detoxification. Secondary objectives included determining kava's safety, its effects on DNA damage, tobacco use, and cortisol (a biomarker of stress). Kava increased urinary excretion of total NNAL and reduced urinary 3-methyladenine in participants, suggestive of its ability to reduce the carcinogenicity of NNK. Kava also reduced urinary total nicotine equivalents, indicative of its potential to facilitate tobacco cessation. Plasma cortisol and urinary total cortisol equivalents were reduced upon kava use, which may contribute to reductions in tobacco use. These results demonstrate the potential of kava intake to reduce lung cancer risk among smokers. Full Article
ni Estimating the Screening-Eligible Population Size, Ages 45-74, at Average Risk to Develop Colorectal Cancer in the United States By cancerpreventionresearch.aacrjournals.org Published On :: 2020-05-04T05:35:14-07:00 Colorectal cancer is a growing burden in adults less than 50 years old. In 2018, the American Cancer Society published a guideline update recommending a reduction in the colorectal cancer screening start age for average-risk individuals from 50 to 45. Implementing these recommendations would have important implications for public health. However, the approximate number of people impacted by this change, the average-risk population ages 45–49, is not well-described in the literature. Here, we provide methodology to conservatively estimate the average-risk and screening-eligible population in the United States, including those who would be impacted by a lowered colorectal cancer screening start age. Using multiple data sources, we estimated the current average-risk population by subtracting individuals with symptomatic colorectal cancer, with a family history of colorectal cancer, and with inflammatory bowel disease and hereditary nonpolyposis colorectal cancer from the total population. Within this population, we estimated the number of screening-eligible individuals by subtracting those with previous colorectal cancer screening (45- to 49-year-old) or up to date with colorectal cancer screening (50- to 74-year-old). The total average-risk population is estimated between 102.1 and 106.5 million people, of whom 43.4–45.2 million people are eligible for colorectal cancer screening. Lowering the screening age would add roughly 19 million people to the average-risk population and increase the current number of screening-eligible individuals on immediate implementation by over 60% (from 27 to 44 million). Estimating the population size impacted by lowering the recommended colorectal cancer screening start age enables more accurate decision-making for policymakers and epidemiologists focused on cancer prevention. Full Article
ni Dasatinib Is an Effective Treatment for Angioimmunoblastic T-cell Lymphoma By cancerres.aacrjournals.org Published On :: 2020-05-04T05:35:17-07:00 Recurrent hotspot (p.Gly17Val) mutations in RHOA encoding a small GTPase, together with loss-of-function mutations in TET2 encoding an epigenetic regulator, are genetic hallmarks of angioimmunoblastic T-cell lymphoma (AITL). Mice expressing the p.Gly17Val RHOA mutant on a Tet2-null background succumbed to AITL-like T-cell lymphomas due to deregulated T-cell receptor (TCR) signaling. Using these mice to investigate therapeutics for AITL, we found that dasatinib, a multikinase inhibitor prolonged their survival through inhibition of hyperactivated TCR signaling. A phase I clinical trial study of dasatinib monotherapy in 5 patients with relapsed/refractory AITL was performed. Dasatinib was started at a dose of 100 mg/body once a day and continued until days 10–78 (median day 58). All the evaluable patients achieved partial responses. Our findings suggest that AITL is highly dependent on TCR signaling and that dasatinib could be a promising candidate drug for AITL treatment.Significance:Deregulated T-cell receptor signaling is a critical molecular event in angioimmunoblastic T-cell lymphoma and can be targeted with dasatinib. Full Article
ni Postpartum Involution and Cancer: An Opportunity for Targeted Breast Cancer Prevention and Treatments? By cancerres.aacrjournals.org Published On :: 2020-05-04T05:35:17-07:00 Childbirth at any age confers a transient increased risk for breast cancer in the first decade postpartum and this window of adverse effect extends over two decades in women with late-age first childbirth (>35 years of age). Crossover to the protective effect of pregnancy is dependent on age at first pregnancy, with young mothers receiving the most benefit. Furthermore, breast cancer diagnosis during the 5- to 10-year postpartum window associates with high risk for subsequent metastatic disease. Notably, lactation has been shown to be protective against breast cancer incidence overall, with varying degrees of protection by race, multiparity, and lifetime duration of lactation. An effect for lactation on breast cancer outcome after diagnosis has not been described. We discuss the most recent data and mechanistic insights underlying these epidemiologic findings. Postpartum involution of the breast has been identified as a key mediator of the increased risk for metastasis in women diagnosed within 5–10 years of a completed pregnancy. During breast involution, immune avoidance, increased lymphatic network, extracellular matrix remodeling, and increased seeding to the liver and lymph node work as interconnected pathways, leading to the adverse effect of a postpartum diagnosis. We al discuss a novel mechanism underlying the protective effect of breastfeeding. Collectively, these mechanistic insights offer potential therapeutic avenues for the prevention and/or improved treatment of postpartum breast cancer. Full Article
ni [TECHNIQUE] Animal Models of Hepatitis C Virus Infection By perspectivesinmedicine.cshlp.org Published On :: 2020-05-01T06:30:15-07:00 Hepatitis C virus (HCV) is an important and underreported infectious disease, causing chronic infection in ~71 million people worldwide. The limited host range of HCV, which robustly infects only humans and chimpanzees, has made studying this virus in vivo challenging and hampered the development of a desperately needed vaccine. The restrictions and ethical concerns surrounding biomedical research in chimpanzees has made the search for an animal model all the more important. In this review, we discuss different approaches that are being pursued toward creating small animal models for HCV infection. Although efforts to use a nonhuman primate species besides chimpanzees have proven challenging, important advances have been achieved in a variety of humanized mouse models. However, such models still fall short of the overarching goal to have an immunocompetent, inheritably susceptible in vivo platform in which the immunopathology of HCV could be studied and putative vaccines development. Alternatives to overcome this include virus adaptation, such as murine-tropic HCV strains, or the use of related hepaciviruses, of which many have been recently identified. Of the latter, the rodent/rat hepacivirus from Rattus norvegicus species-1 (RHV-rn1) holds promise as a surrogate virus in fully immunocompetent rats that can inform our understanding of the interaction between the immune response and viral outcomes (i.e., clearance vs. persistence). However, further characterization of these animal models is necessary before their use for gaining new insights into the immunopathogenesis of HCV and for conceptualizing HCV vaccines. Full Article
ni Comparison of Enhancement of the Vestibular Perilymph between Variable and Constant Flip Angle-Delayed 3D-FLAIR Sequences in Meniere Disease [HEAD & NECK] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: Endolymphatic hydrops in patients with Menière disease relies on delayed postcontrast 3D-FLAIR sequences. The purpose of this study was to compare the degree of perilymphatic enhancement and the detection rate of endolymphatic hydrops using constant and variable flip angles sequences. MATERIALS AND METHODS: This was a retrospective study performed in 16 patients with Menière disease who underwent 3T MR imaging 4 hours after gadolinium injection using two 3D-FLAIR sequences with a constant flip angle at 140° for the first and a heavily-T2 variable flip angle for the second. The signal intensity ratio was measured using the ROI method. We graded endolymphatic hydrops and evaluated the cochlear blood-labyrinth barrier impairment. RESULTS: Both for symptomatic and asymptomatic ears, the median signal intensity ratio was significantly higher with the constant flip angle than with the heavily-T2 variable flip angle (7.16 versus 1.54 and 7.00 versus 1.45, P < .001). Cochlear blood-labyrinth barrier impairment was observed in 4/18 symptomatic ears with the heavily-T2 variable flip angle versus 8/19 with constant flip angle sequences. With heavily-T2 variable flip angle sequences, endolymphatic hydrops was observed in 7–10/19 symptomatic ears versus 12/19 ears with constant flip angle sequences. We found a significant association between the clinical symptomatology and the presence of endolymphatic hydrops with constant flip angle but not with heavily-T2 variable flip angle sequences. Interreader agreement was always perfect with constant flip angle sequences while it was fair-to-moderate with heavily-T2 variable flip angle sequences. CONCLUSIONS: 3D-FLAIR constant flip angle sequences provide a higher signal intensity ratio and are superior to heavily-T2 variable flip angle sequences in reliably evaluating the cochlear blood-labyrinth barrier impairment and the endolymphatic space. Full Article
ni Assessment of Apparent Internal Carotid Tandem Occlusion on High-Resolution Vessel Wall Imaging: Comparison with Digital Subtraction Angiography [EXTRACRANIAL VASCULAR] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: Not all tandem occlusions diagnosed on traditional vascular imaging modalities, such as MRA, represent actual complete ICA occlusion. This study aimed to explore the utility of high-resolution vessel wall imaging in identifying true ICA tandem occlusions and screening patients for their suitability for endovascular recanalization. MATERIALS AND METHODS: Patients with no signal in the ICA on MRA were retrospectively reviewed. Two neuroradiologists independently reviewed their high-resolution vessel wall images to assess whether there were true tandem occlusions and categorized all cases into intracranial ICA occlusion, extracranial ICA occlusion, tandem occlusion, or near-occlusion. DSA classified patient images into the same 4 categories, which were used as the comparison with high-resolution vessel wall imaging. The suitability for recanalization of occluded vessels was evaluated on high-resolution vessel wall imaging compared with DSA. RESULTS: Forty-five patients with no ICA signal on MRA who had available high-resolution vessel wall imaging and DSA images were included. Among the 34 patients (34/45, 75.6%) with tandem occlusions on DSA, 18 cases also showed tandem occlusions on high-resolution vessel wall imaging. The remaining 16 patients, intracranial ICA, extracranial ICA occlusions and near-occlusions were found in 2, 6, and 8 patients, respectively, on the basis of high-resolution vessel wall imaging. A total of 20 cases (20/45, 44.4%) were considered suitable for recanalization on the basis of both DSA and high-resolution vessel wall imaging. Among the 25 patients deemed unsuitable for recanalization by DSA, 11 were deemed suitable for recanalization by high-resolution vessel wall imaging. CONCLUSIONS: High-resolution vessel wall imaging could allow identification of true ICA tandem occlusion in patients with an absence of signal on MRA. Findings on high-resolution vessel wall imaging can be used to screen more suitable candidates for recanalization therapy. Full Article
ni White Matter Disease and Outcomes of Mechanical Thrombectomy for Acute Ischemic Stroke [INTERVENTIONAL] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: The increased severity of white matter disease is associated with worse outcomes and an increased rate of intracerebral hemorrhage in patients with ischemic stroke undergoing thrombolytic treatment. However, whether white matter disease is associated with outcomes in patients undergoing endovascular treatment remains unclear. MATERIALS AND METHODS: In this prespecified exploratory analysis of our prospective multi-institutional study that enrolled consecutive adult patients with anterior circulation ischemic stroke undergoing endovascular treatment from November 2017 to September 2018, we compared the following outcomes between patients with none-to-minimal (van Swieten score, 0–2) and moderate-to-severe (van Swieten score, 3–4) white matter disease using logistic regression: 90-day mRS 3–6, death, intracerebral hemorrhage, successful recanalization, and early neurologic recovery. RESULTS: Of the 485 patients enrolled in the Blood Pressure after Endovascular Stroke Therapy (BEST) study, 389 had white matter disease graded (50% women; median age, 68 years; range, 58–79 years). A van Swieten score of 3–4 (n = 74/389, 19%) was associated with a higher rate of 90-day mRS of 3–6 (45% versus 18%; adjusted OR, 2.73; 95% CI, 1.34–5.93; P = .008). Although the death rate was higher in patients with van Swieten scores of 3–4 (26% versus 15%), the adjusted likelihood was not significantly different (adjusted OR, 1.14; 95% CI, 0.56–2.26; P = .710). Ordered regression revealed a shift toward worse mRS scores with increasing van Swieten scores (adjusted common OR, 3.04; 95% CI, 1.93–4.84; P < .001). No associations between white matter disease severity and intracerebral hemorrhage, successful recanalization, and early neurologic recovery were observed. CONCLUSIONS: Moderate-to-severe white matter disease is associated with worse outcomes in patients undergoing endovascular treatment without a significant increase in hemorrhagic complications. Studies comparing patients with and without endovascular treatment are necessary to determine whether the benefit of endovascular treatment is attenuated with greater white matter disease. Full Article
ni Save the Brain First: CTA and Mechanical Thrombectomy in Patients at Risk for Contrast-Induced Nephropathy [article-commentary] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 Full Article
ni Suspected Metallic Embolization Distal to Coiled Intracranial Aneurysms Detectable by Susceptibility-Weighted MR Imaging [INTERVENTIONAL] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: After endovascular coiling of intracranial aneurysms, round dark parenchymal lesions believed to be particulate metal are sometimes encountered in MR imaging studies of the brain. We used SWI to assess the frequency of such occurrences, in addition to exploring likely causes and clinical implications. MATERIALS AND METHODS: We reviewed 700 MR imaging studies performed between September 2018 and March 2019 at our institution as follow-up monitoring of coiled intracranial aneurysms. Any sizeable (>5 mm) rounded dark-signal lesions encountered were presumed to be metallic. The magnitudes and locations of such lesions were recorded. In patients with these lesions, pertinent procedural documentation was screened for devices used, including coils, microcatheters, microguidewires, and stents. Medical records were also examined to determine whether any related symptoms ensued. RESULTS: Twenty patients (2.8%) exhibited a total of 25 lesions on SWI. Diameters ranged from 5 to 11 mm (median, 8 mm). All except 2 lesions were located in brain regions downstream from aneurysms, but all lesions occupied vascular territories of vessels used to place guiding catheters. Other than the Synchro 14, which was routinely deployed, no device was regularly used in patients with SWI-detectable lesions; and none of the affected patients developed focal neurologic symptoms as a consequence. CONCLUSIONS: Although the origins remain unclear, distal embolization of particulate metal distal to coiled cerebral aneurysms is occasionally observed on follow-up MR imaging studies. Such lesions, however, seem to have no apparent clinical impact. Full Article
ni CT Angiography in Evaluating Large-Vessel Occlusion in Acute Anterior Circulation Ischemic Stroke: Factors Associated with Diagnostic Error in Clinical Practice [INTERVENTIONAL] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 BACKGROUND AND PURPOSE: It is currently not completely clear how well radiologists perform in evaluating large-vessel occlusion on CTA in acute ischemic stroke. The purpose of this study was to investigate potential factors associated with diagnostic error. MATERIALS AND METHODS: Five hundred twenty consecutive patients with a clinical diagnosis of acute ischemic stroke (49.4% men; mean age, 72 years) who underwent CTA to evaluate large-vessel occlusion of the proximal anterior circulation were included. CTA scans were retrospectively reviewed by a consensus panel of 2 neuroradiologists. Logistic regression analysis was performed to investigate the association between several variables and missed large-vessel occlusion at the initial CTA interpretation. RESULTS: The prevalence of large-vessel occlusion was 16% (84/520 patients); 20% (17/84) of large-vessel occlusions were missed at the initial CTA evaluation. In multivariate analysis, non-neuroradiologists were more likely to miss large-vessel occlusion compared with neuroradiologists (OR = 5.62; 95% CI, 1.06–29.85; P = .04), and occlusions of the M2 segment were more likely to be missed compared with occlusions of the distal internal carotid artery and/or M1 segment (OR = 5.69; 95% CI, 1.44–22.57; P = .01). There were no calcified emboli in initially correctly identified large-vessel occlusions. However, calcified emboli were present in 4 of 17 (24%) initially missed or misinterpreted large-vessel occlusions. CONCLUSIONS: Several factors may have an association with missing a large-vessel occlusion on CTA, including the CTA interpreter (non-neuroradiologists versus neuroradiologists), large-vessel occlusion location (M2 segment versus the distal internal carotid artery and/or M1 segment), and large-vessel occlusion caused by calcified emboli. Awareness of these factors may improve the accuracy in interpreting CTA and eventually improve stroke outcome. Full Article
ni Do the Magic Angle Effects or Susceptibility Effects Affect the Visualization of Nigrosome 1? [LETTERS] By www.ajnr.org Published On :: 2020-04-09T06:30:48-07:00 Full Article
ni Chính chủ bán gấp shop chân đế S2.18 - 71m2, mặt đường 52m, view ĐH Vinuni, Vinfast, giá CĐT 3.9 tỷ By batdongsan.com.vn Published On :: Fri, 08 May 2020 09:13:45 GMT - Gia đình cần nhượng lại căn shop chân đế tòa S2.18 view đại học Vinuni, tòa Vinfast 45 tầng, vị trí rất đẹp để kinh doanh.- Diện tích: 71m2. - Hướng: Đông Nam, Tây Nam. - Giá CĐT: 3.9 tỷ. - LH: 0965282215 (môi giới miễn trung gian, tránh làm phiền, xin cảm ơn! ).... Full Article
ni Bán shop office, kiot chân khối đế mặt đường Hàm Nghi, Vinhomes Gardenia. LH 0983786378 By batdongsan.com.vn Published On :: Wed, 06 May 2020 11:09:52 GMT Bán shop office Vinhomes Gardenia, bán shop chân khối đế mặt Hàm Nghi 3 tòa chung cư A1, A2, A3 Vinhomes Gardenia Mỹ Đình, Nam từ Liêm. Bán kiot mặt Hàm nghi Gardenia. 1. Shop Diện tích 112.8 m2. Đang cho thuê 100 triệu/th, hợp đồng thuê còn 5 năm, thanh toán 12 tháng/ lần.... Full Article
ni Chuyên cho thuê căn hộ cao cấp Masteri Millennium 1PN 16tr, 2PN 18tr, 3PN 26 triệu Lh 0901756869 By batdongsan.com.vn Published On :: Fri, 01 May 2020 12:10:00 GMT Chuyên cho thuê căn hộ cao cấp Masteri Millennium giá tốt* Nhận kí gửi căn hộ cho thuê và sang nhượng từ chủ nhà* Cập nhật giá thuê Masteri Millennium hiện tại -1PN diện tích 54m2 giá NTCB 13,5-15 triệu Full nọii thất đẹp giá 16-17 triệu -2PN diện tích 65-77m2 giá NTCB 16 triệ... Full Article
ni Phoenix Legend Ha Long Bay By batdongsan.com.vn Published On :: Wed, 16 Jan 2019 19:01:11 GMT Phoenix Legend Ha Long Bay Hotel and Residences được thiết kế là khu phức hợp hiện đại gồm căn hộ nghỉ dưỡng, khu biệt thự cao cấp, khách sạn tiêu chuẩn quốc tế 5 sao. Full Article
ni Piania City By batdongsan.com.vn Published On :: Wed, 05 Jun 2019 17:05:49 GMT Piania City do Phúc Sơn Group đầu tư xây dựng có quy mô 65,63ha, gồm 1.300 lô đất nhà ở và hàng trăm căn biệt thự đơn lập, nhà liền kề và nhà phố thương mại. Full Article
ni Ninh Chữ Sailing Bay By batdongsan.com.vn Published On :: Sat, 28 Dec 2019 11:28:43 GMT Ninh Chữ Sailing Bay được chủ đầu tư Crystal Bay triển khai theo mô hình căn hộ khách sạn đẳng cấp 5 sao trên dải đất hình mũi tàu nhô ra biển tại Tri Hải, Ninh Hải, Ninh Thuận. Full Article
ni CHUYÊN chuyển nhượng Masteri giá thật đang có 2PN view hồ bơi giá chỉ 3,3 tỷ. LH em Ni 0901381558 By batdongsan.com.vn Published On :: Fri, 08 May 2020 14:49:48 GMT Em chuyên giỏ hàng Masteri Thảo Điền và Masteri An Phú. Giá và vị trí căn hộ nào cũng có hàng. * Có mặt ở Masteri 24/7 để dẫn khách hàng đi xem thực tế căn hộ đã bàn giao, những căn hộ đã có nội thất đầy đủ. * Sổ hồng pháp lý rõ ràng, hỗ trợ vay ngân hàng lên tới 80% giá trị căn hộ. * Cam kết tư vấn đúng nhu cầu, đúng sự thật. Trước khi mua Masteri, muốn tìm hiểu tốt n... Full Article
ni Chính chủ bán đất lô góc hai mặt tiền 186m2 KDC Thanh Niên, Xã Phước Lộc, H Nhà Bè, giá 14 tr/ m2 By batdongsan.com.vn Published On :: Thu, 07 May 2020 14:36:04 GMT Dự án Garden Riverside Villas Thanh Niên Nhà Bè. Cách cầu Nguyễn Tri Phương 15p xe máy, liền kề khu 6B Intresco, KDC Đại Phúc, T30, Trường Quốc tế BIS. Thuận tiện về trung tâm Q.1, Q.5, Q.8, Phú Mỹ Hưng.Hạ tầng giao thông khu vực đang hoàn thiện, trục đường Phạm Hùng nối dài đượ... Full Article
ni CÔNG TY BẤT ĐỘNG SẢN VẠN HƯNG PHÁT – NINH THUẬN By batdongsan.com.vn Published On :: Tue, 10 Dec 2019 15:00:00 GMT Công ty bất động sản Vạn Hưng Phát – Ninh Thuận thành lâp ngày 16/09/2019, với triết lý kinh doanh “Niềm tin của bạn, tương lai của chúng tôi”. Với chiến lược xây dựng đội ngũ nhân viên kinh doanh bất động sản ưu tú, chuyên nghiệp, hướng tới một công ty môi giới đạt chuẩn, chuyên nghiệp, đồng bộ và uy tín, phát triển hệ thống bán hàng một cách hiệu quả kết hợp đầu tư xây dựng và phát triển bất động sản ở nhiều mặt. Với đội ngũ nhân viên giàu kinh nghiệm, chuyên nghiệp, trung thực, luôn lắng nghe và thấu hiểu được nhu cầu của khách hàng để đáp ứng nhu cầu của khách hàng tốt nhất có thể. Niềm vui và sự tin tưởng, tín nhiệm của khách hàng chính là thành công lớn nhất của công ty chúng tôi. Lĩnh vực hoạt động: Tư vấn, mua bán, ký gởi, cho thuê đất nền, đất dự án, căn hộ. Dịch vụ làm sổ đỏ, gắn tài sản trên đất, xin giấy phép xây dựng. Tư vấn, thiết kế, thi công biệt thự, nhà phố. Khu vực môi giới tốt nhất hiện nay: TP. Phan Rang - Tháp Chàm. Chúng tôi luôn sẵn sàng giúp đỡ các bạn! Liên hệ: Hotline: 0931 043 939 – 0982 891 111. Email: ctyvanhungphat@gmail.com Địa chỉ: Số 97 Quang Trung, TP Phan Rang – Tháp Chàm, Tỉnh Ninh Thuận. Full Article
ni CÔNG TY CỔ PHẦN TRUNG NIÊN LAND By batdongsan.com.vn Published On :: Mon, 27 Apr 2020 13:57:00 GMT Trung Nien Land được thành lập vào 6/6/2017 với trụ sở ban đầu tại 572 Nguyễn Hữu Thọ. Đến 2018 bắt đầu chuyển sang địa chỉ 552 đường 2/9. Từ 1/3/2020 Trung Nien Land chuyển địa chỉ trụ sở chính sang 101 Phạm Văn Bạch - Hải Châu – Đà Nẵng. Trung Nien Land là đơn vị hàng đầu trong lĩnh vực môi giới bất động sản phân khúc nhà phố, đất lẻ. Chuyên tư vấn đầu tư đất nền ven biển Đà Nẵng, Quảng Nam. Chuyên đầu tư bất động sản phân khúc bình dân và trung cấp. Với đội ngũ nhân viên kinh doanh trẻ trung, năng động và chuyên môn cao chúng tôi hứa hẹn sẽ cung cấp những giải pháp tối ưu nhất cho quý khách trong mua bán, cho thuê bất động sản tại Đà Nẵng. Khu vực môi giới tốt nhất : Quận Hải Châu, Quận Thanh Khê, Quận Cẩm Lệ, Quận Ngũ Hành Sơn, Quận Liên Chiểu Lĩnh vực môi giới nhiều nhất: Nhà phố, đất lẻ, đất nền dự án. Cảm ơn Quý khách! Full Article
ni Golden City Tây Ninh By batdongsan.com.vn Published On :: Mon, 20 Jan 2020 10:15:46 GMT Golden City Tây Ninh là dự án tổ hợp chung cư - thương mại - dịch vụ đầu tiên tại Tây Ninh. Dự án được định hướng trở thành nơi kiến tạo các giá trị sống mới tiện nghi cho cư dân thành phố với tổng vốn đầu tư lên tới trên 2.000 tỷ đồng. Full Article
ni The Antonia By batdongsan.com.vn Published On :: Tue, 04 Feb 2020 11:33:04 GMT The Antonia là dự án căn hộ được chủ đầu tư Phú Mỹ Hưng định vị là dòng sản phẩm cao cấp, hội tụ đầy đủ các hạng mục tiện ích dịch vụ đẳng cấp - mang đến những cảm xúc trọn vẹn tại không gian sống đậm chất nghỉ dưỡng 5 sao hàng đầu cho cộng đồng các cư dân ưu tú. Full Article
ni Hà Nội Phoenix Tower By batdongsan.com.vn Published On :: Thu, 12 Mar 2020 16:53:18 GMT Hà Nội Phoenix Tower là dự án nhà ở cao tầng thương mại và dịch vụ được triển khai trên quỹ đất rộng 3.196m2 với mật độ xây dựng khoảng 70.4% tại Tp. Cao Bằng, tỉnh Cao Bằng. Full Article
ni Nice villa for rent in My Giang, Phu My Hung area, Dist.7, Ho Chi Minh City By batdongsan.com.vn Published On :: Wed, 19 Feb 2020 17:01:00 GMT Nice villa for rent in My Giang, Phu My Hung area, Dist.7, Ho Chi Minh City: Location: in the heart of Phu My Hung, near Crescent Mall, Starlight Bridge, SSIS school, very big park, security, quite, Size: 7x18m2, ground and 2 floors, 3 Bedrooms, 1 small room, 3 bathrooms. New de... Full Article
ni Nice villa for rent in My Giang, Phu My Hung area, Dist.7, Ho Chi Minh City By batdongsan.com.vn Published On :: Wed, 19 Feb 2020 17:22:00 GMT Nice a villa for rent in My Giang, Phu My Hung area, Dist.7, Ho Chi Minh City. location: in the heart of Phu My Hung, near Crescent Mall, Starlight Bridge, very big park... Size: 7x18m2, ground and 2 floors, 3 Bedrooms, 1 small room, 3 bathrooms. New decoration, fully furnished. ... Full Article
ni House for rent in Thao, area 110sqm, 4 bedrooms, 2 floors, no furniture By batdongsan.com.vn Published On :: Fri, 21 Feb 2020 07:53:00 GMT Thao Dien house for rent, frontage number 4 (Press Village Area), District 2, Ho Chi Minh. security area, quiet, big road not flooded. - House for rent with an area of 10x11m = 110m2, built 1 ground + 1 floor + attic, no furniture. Including 4 bedrooms, 4WC Rental: $ 1,000 / Mont... Full Article
ni Villa Riviera Cove for rent - 1 ground floor + 2 floors, 4 bedrooms, 500m2, fully furnished By batdongsan.com.vn Published On :: Fri, 21 Feb 2020 10:18:00 GMT Villa Riviera Cove for rent with an area of 500m2, architecture including 1 ground floor 2 floors, 4 bedrooms, 4 bathrooms, 1 living room and 1 dining room. Fully furnished can leave a car within the villa premises. Price for rent: $ 2,100 / Month. Riviera Cove Villa is located i... Full Article
ni Leasing Villa Park in District 9, fully furnished, 2 floors, 260m2, 4BRs, 5WC By batdongsan.com.vn Published On :: Fri, 21 Feb 2020 10:21:00 GMT Single Villa next to the pool, with garden Villa Villa, Bung Ong Thoan, Phu Huu, District 9. Villa Park for rent in District 9, built 1 ground, + 2 floors, large balcony. With an area of 260m2, construction area of 373m2 Next to the swimming pool, the villa is cared for by the l... Full Article
ni Apartment 3 bedrooms with river view fully furnished in Diamond Island for rent By batdongsan.com.vn Published On :: Mon, 23 Mar 2020 23:00:00 GMT Diamond Island apartment for rent, CA-XX.01, designed with 3 bedrooms, 2 bathrooms, living room, kitchen, fully furnished, total area 117m2, airy river view.Price: $ 1,500 / MonthDiamond Island apartment is the most high-class apartment project in Ho Chi Minh City at present, spe... Full Article
ni Nice house for rent on street 4, Ha Quang 2 urban area, Nha Trang city with the best price. By batdongsan.com.vn Published On :: Sat, 04 Apr 2020 16:26:05 GMT - Nice house located on the road No. 4 urban area Ha Quang 2, Phuoc Hai Ward, City of Nha Trang. - With an area of 110m2 per floor, horizontal 5m, the house has 4 floors and terrace, used area up to 500m2. - 1st floor, 2nd floor, 3rd floor smoothly built, suitable for opening com... Full Article
ni Villa for Rent 1 night - Phu My Hung, District 7 - 5 bedrooms, swimming pool - 0938.790.614 By batdongsan.com.vn Published On :: Tue, 14 Apr 2020 20:44:00 GMT Swimming Pool Villa in Phu My Hung Rental: only 500$/nightIncluded: - 5 bedrooms. 5 toilets - Swimming pool inside, Sauna room, Karaoke room... - Fully furnished | Nice decoration - Security 24/24 | Parking car slot - Convenient store, big park, playground for kids...5 - 10 mins ... Full Article
ni Cho thuê nhà nguyên căn, mặt tiền đường 18, 4x20m, 3 lầu, khu dân cư an ninh, mở VP, gia đình ở By batdongsan.com.vn Published On :: Tue, 05 May 2020 09:36:54 GMT Cho thuê nguyên căn nhà, mặt đường 18 rộng 10m, xe hơi quay đầu thoải mái, khu vực có nhiều văn phòng công ty, dân cư an ninh, lịch sự, phù hợp mở văn phòng, gia đình đông người, mở xưởng sản xuất nhỏ kinh doanh cá thể thì rất phù hợp.... Full Article
ni Cho thuê nhà phố Vinhomes Gardenia Hàm Nghi, Mỹ Đình, đẩy đủ nội thất. LH chủ nhà: 0966685333 By batdongsan.com.vn Published On :: Wed, 06 May 2020 09:21:12 GMT Tôi có căn nhà phố Vinhomes Gardenia Hàm Nghi Mỹ Đình cần cho thuê tầng 1Diện tích sàn: 100m2.Khu này là phố đi bộ. Có vườn hoa ở giữa. Đường hai bên. Và ghế ngồi ngoài trời. Khu vực sầm uất tiện kinh doanh buôn bánGiá thỏa thuậnLiên hệ: Anh Doanh - 0966685333.... Full Article
ni CHO THUÊ PHÒNG DẠNG CĂN HỘ GIÁ SINH VIÊN QUẬN 12,FULL NỘI THẤT VÀ RẤT AN NINH KHU VỰC By batdongsan.com.vn Published On :: Fri, 08 May 2020 15:35:00 GMT - Phòng theo dạng căn hộ nằm trong khu dân cư An Sương. Gần ủy ban và công an phường, gần chợ, trường mẫu giáo, trường cấp 1 - 3. - Được trang bị đầy đủ, nội thất, trang thiết bị, thang máy, hệ thống nước máy, nóng lạnh, máy lạnh và tivi... - Gần công viên. Lối đi riêng. Riêng tư yên tĩnh. Có thang máy. - Giá phòng: Chỉ từ 4,5 triệu/tháng. - Hợp đồng ở lâu dài có thể bớt lộc c... Full Article
ni Luxury condo at Garden City, basic furniture, now available By batdongsan.com.vn Published On :: Tue, 01 Oct 2019 16:18:27 GMT If you are looking for a quiet, convenient living environment that is close to Hanoi center, this condominium is your best choice. The condo has southwest-facing door and north-facing window, comprising a living room, a kitchen, two bedrooms, two bathrooms and a private yard, cr... Full Article
ni For Sale Nine South Villa On Nguyen Huu Tho Street Nha Be Dist- 123 sqm- 9,9 Billion By batdongsan.com.vn Published On :: Mon, 04 May 2020 16:47:25 GMT FOR SALE NINE SOUTH VILLA ON NGUYEN HUU THO NHA BE DISTRICT 7 -Location: on Nguyen Huu Tho, Nha Be District -Area : 7 m x 17.5 m -The Sale Price: VND 9,9 billion VND -Had the ownership certificate, having the key Hotline: 0907894503 GreenHouse for seeing the house immediately an... Full Article
ni Chính chủ cho thuê phòng trọ cc mini đủ đồ ngõ 165 phố chợ Khâm Thiên, Phố Xã Đàn, giá từ 4 tr/th By batdongsan.com.vn Published On :: Thu, 07 May 2020 10:58:53 GMT 1 - Chính chủ cho thuê phòng trọ dạng CCMN ở số 55 ngõ 165 phố chợ Khâm Thiên (cách phố chợ khâm thiên tầm 100m), cách mặt phố Xã Đàn, Đê La Thành nhỏ 300m. Gần nhiều trường đại học, Khu vực trung tâm đi lại thuận tiện. - Toà nhà mới hoàn thiện với nhiều loại căn hộ cho thuê, gồm... Full Article
ni Hệ thống nhà trọ cao cấp bảo vệ 24/24 an ninh tuyệt đối By batdongsan.com.vn Published On :: Sat, 09 May 2020 09:20:00 GMT Hệ thống căn hộ Sài Gòn Minh Thư cho thuê căn hộ đạt chuẩn 01 sao, là chỗ ở lý tưởng nhất khu vực để làm việc và học tập, CÓ THANG MÁY. - Sử dụng điện led giúp tiết kiệm 40% điện sinh hoạt. - Vị trí: Giáp quận 01, ngay mặt tiền Đinh Tiên Hoàng, dối diện trường tiểu học Võ Thị Sáu... Full Article
ni Hệ thống nhà trọ cao cấp bảo vệ 24/24 an ninh tuyệt đối By batdongsan.com.vn Published On :: Sat, 09 May 2020 09:21:00 GMT Chung cư mini mới xây trên diện tích 600m2 đất phòng nào cũng có ban công thoáng mát.- Đặc điểm phòng: Diện tích từ 30m2 đến 40m2 được tận hưởng không gian thoáng mát, rộng rãi đem lại cảm giác thoải mái dễ chịu mỗi khi về nhà.- Mỗi phòng đều có: WC hiện đại, bếp nấu ăn được đặt ... Full Article