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https://www.readbyqxmd.com/read/28716287/kidney-dysfunction-and-silent-brain-infarction-in-generally-healthy-adults
#1
Sang Hyuck Kim, Dong Wook Shin, Jae Moon Yun, Ji Eun Lee, Jae-Sung Lim, Be Long Cho, Hyung-Min Kwon, Jin-Ho Park
BACKGROUND: The association between silent brain infarction (SBI) and estimated glomerular filtration rate (eGFR)-based kidney dysfunction has not yet been definitively confirmed. This study aimed to investigate the association in generally healthy adults without a previous history of stroke or overt kidney disease. METHODS: The data from the screening health check-up program in the Seoul National University Hospital Health Promotion Center from January 1, 2009 to December 31, 2013 were used...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28705525/the-top-100-most-cited-articles-in-stroke-imaging-a-bibliometric-analysis
#2
REVIEW
Mohammed F Mohammed, Olivia Marais, Adnan Qureshi, Nizar Bhulani, David Ferguson, Hossain Abu-Alola, Savvas Nicolaou, Faisal Khosa
PURPOSE: The goal of our study was to compile a list of the top 100 most-cited articles in stroke imaging literature across all peer-reviewed scientific journals. These articles were then analyzed to identify current trends in stroke imaging research and determine the characteristics of highly-cited articles. MATERIALS AND METHODS: A database of the top 100 most-cited articles was created using Scopus and Web of Science. Articles were reviewed for applicability by 2 fellowship-trained radiologists with over 10 years of combined experience in neuroimaging...
June 6, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28704433/forecasting-distributions-of-an-aquatic-invasive-species-nitellopsis-obtusa-under-future-climate-scenarios
#3
Daniel Romero-Alvarez, Luis E Escobar, Sara Varela, Daniel J Larkin, Nicholas B D Phelps
Starry stonewort (Nitellopsis obtusa) is an alga that has emerged as an aquatic invasive species of concern in the United States. Where established, starry stonewort can interfere with recreational uses of water bodies and potentially have ecological impacts. Incipient invasion of starry stonewort in Minnesota provides an opportunity to predict future expansion in order to target early detection and strategic management. We used ecological niche models to identify suitable areas for starry stonewort in Minnesota based on global occurrence records and present-day and future climate conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28702213/monitoring-the-efficacy-of-omega-3-supplementation-on-liver-steatosis-and-carotid-intima-media-thickness-a-pilot-study
#4
M-C Lacasse, A Tang, J Dubois, F Alvarez, S Spahis, M Chagnon, S Deschênes, E Levy
PURPOSE: To determine the effects of omega-3 supplementation on liver fat and carotid intima-media thickness (IMT) and to assess accuracy of ultrasound (US) for grading liver steatosis. MATERIALS AND METHODS: In this one-way crossover pilot study, we assigned children with obesity and liver steatosis to receive 1.2 g daily of omega-3 supplementation vs. inactive sunflower oil for 24 or 12 weeks. Liver fat content was assessed by magnetic resonance spectroscopy (MRS), magnetic resonance imaging (MRI) and US, and common carotid IMT by US...
June 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/28695759/diffusion-tensor-imaging-findings-suggestive-of-white-matter-alterations-in-a-canine-model-of-mucopolysaccharidosis-type-i
#5
Dana M Middleton, Jonathan Y Li, Steven D Chen, Leonard E White, Patricia Dickson, N Matthew Ellinwood, James M Provenzale
Purpose We investigated fractional anisotropy (FA) and radial diffusivity (RD) in a canine model of mucopolysaccharidosis (MPS). We hypothesized that canines affected with MPS would exhibit decreased FA and increased RD values when compared to unaffected canines, a trend that has been previously described in humans with white matter diseases. Methods Four unaffected canines and two canines with MPS were euthanized at 18 weeks of age. Their brains were imaged using high-resolution diffusion tensor imaging (DTI) on a 7T small-animal magnetic resonance imaging system...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28695243/cns-metabolism-in-high-risk-drug-abuse-insights-gained-from-1-h-31-p-mrs-and-pet
#6
REVIEW
S Bodea
BACKGROUND: High-risk drug consumption is a matter of great concern for public health actors in industrialised countries. The latest trends show a market tendency towards diversification and increasing demand for high-purity synthetic drugs. While most consumers seek medical help after cannabis use, it is high-risk drugs like cocaine, heroin and amphetamines that account for most of the 1000 drug-related deaths that occur in Germany every year. PURPOSE: This article presents the most prominent in vivo cerebral metabolic information in cocaine, heroin and methamphetamine users provided by MRI spectroscopy and PET imaging...
July 10, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28691997/the-clinical-significance-of-posterior-insular-volume-in-adolescent-anorexia-nervosa
#7
Nancy L Zucker, Philip A Kragel, H Ryan Wagner, Lori Keeling, Emeran Mayer, Joyce Wang, Min Su Kang, Rhonda Merwin, W Kyle Simmons, Kevin S LaBar
OBJECTIVE: The diagnostic criterion disturbance in the experience of the body remains a poorly understood and persistent feature of anorexia nervosa (AN). Increased sophistication in understanding the structure of the insular cortex - a neural structure that receives and integrates visceral sensations with action and meaning - may elucidate the nature of this disturbance. We explored age, weight-status, illness severity, and self-reported body dissatisfaction associations with insular cortex volume...
July 7, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28684054/usage-of-an-electronic-database-and-checklist-system-for-improvement-in-magnetic-resonance-imaging-acquisition
#8
Juan E Small, Laura Semine, Jaclyn Therrien, Patricia Doyle, Lorraine Kelly, Robert Marquis, Curtis W Bakal
PURPOSE: To determine whether implementation of an easily accessible electronic database promotes significant reporting of magnetic resonance imaging (MRI) acquisition errors. Additionally, we wanted to see if analysis of the error reports could be used to create a comprehensive checklist to avoid the most common errors. METHODS: A new, simple, and efficient electronic database reporting system was written in-house and implemented at our institution. Over the course of 4 months, the use of this database enabled collection and analysis of sufficient data for trend analysis...
May 20, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28682110/is-intervertebral-disc-degeneration-related-to-segmental-instability-an-evaluation-with-two-different-grading-systems-based-on-clinical-imaging
#9
David Volkheimer, Fabio Galbusera, Christian Liebsch, Sabine Schlegel, Friederike Rohlmann, Sebastian Kleiner, Hans-Joachim Wilke
Background Several in vitro studies investigated how degeneration affects spinal motion. However, no consensus has emerged from these studies. Purpose To investigate how degeneration grading systems influence the kinematic output of spinal specimens. Material and Methods Flexibility testing was performed with ten human T12-S1 specimens. Degeneration was graded using two different classifications, one based on X-ray and the other one on magnetic resonance imaging (MRI). Intersegmental rotation (expressed by range of motion [ROM] and neutral zone [NZ]) was determined in all principal motion directions...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28681563/osteitis-condensans-ilii-may-demonstrate-bone-marrow-edema-on-sacroiliac-joint-magnetic-resonance-imaging
#10
Ling Ma, Zhenhua Gao, Yi Zhong, Quanfei Meng
AIM: To reveal whether bone marrow edema (BME) may appear with osteitis condensans ilii (OCI) on sacroiliac joint (SIJ) magnetic resonance imaging (MRI) and to evaluate the characteristics of BME demonstrated with OCI. METHOD: Altogether 27 symptomatic female OCI patients with both complete clinical records and SIJ-MRI examination data were enrolled for retrospective analysis. SIJ-MRI exams were retrospectively analyzed by two musculoskeletal radiologists. Patients were separated into BME group and non-BME group according to whether there was BME of SIJ demonstrated as high signal intensity on MR short tau inversion recovery sequences beneath the SIJ articular surface...
July 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28678107/intervertebral-disc-degeneration-during-postoperative-follow-up-more-than-10-years-after-corrective-surgery-in-idiopathic-scoliosis-comparison-between-patients-with-and-without-surgery
#11
Ayato Nohara, Noriaki Kawakami, Taichi Tsuji, Tetsuya Ohara, Toshiki Saito, Kazuki Kawakami
STUDY DESIGN: Retrospective comparative Study OBJECTIVE.: To evaluate the difference in trends of disc degeneration (DD) at Lower unfused segments (LUS) for post-operative patients who have gone through spinal instrumentation at 10-year follow-up with the natural progression of idiopathic scoliosis. SUMMARY OF BACKGROUND DATA: Studies that used MRI state that DD rates at LUS are higher than in the normal population. However, current studies do not prove that surgery is the most effective clinical method to treat idiopathic scoliosis, as no existing report compares the rates of DD with the natural history of idiopathic scoliosis...
July 3, 2017: Spine
https://www.readbyqxmd.com/read/28675194/aortic-stenosis-pathogenesis-prediction-of-progression-and-percutaneous-intervention
#12
D Natarajan, B Prendergast
Aortic stenosis is common and an important cause of morbidity and mortality. Prevalence will increase significantly in forthcoming decades as a function of the ageing population; treatment by means of surgery or percutaneous intervention is expensive. Epidemiological, mechanistic and interventional studies are therefore vital to determine optimal and innovative treatments and their funding. Recent studies suggest that aortic stenosis is not a passive degenerative disease, but an active process involving several pathways, including lipid infiltration, chronic inflammation, fibrosis formation, osteoblast activation, and active valve mineralisation...
June 2017: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/28674919/creating-diagnostic-criteria-for-perforated-appendicitis-using-cross-sectional-imaging
#13
Joseph T Church, Megan A Coughlin, Alexis G Antunez, Ethan A Smith, Steven W Bruch
INTRODUCTION: Preoperative determination of perforated versus acute appendicitis can be difficult. We compared CT and MRI performance in diagnosing perforated appendicitis, and created diagnostic criteria. METHODS: We retrospectively reviewed all pediatric patients who underwent appendectomy within one day of CT or MRI between 1/1/2013 and 1/16/2016. True diagnosis was determined by pathology report. Findings on CT/MRI were grouped into "hard" findings (abscess, pneumoperitoneum, extruded fecalith, appendiceal wall with visible hole) and "soft" findings (extensive/diffuse inflammation/free fluid, phlegmon)...
July 3, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28674910/diagnostic-imaging-in-pediatric-thoracic-trauma
#14
Claudia Lucia Piccolo, Stefania Ianniello, Margherita Trinci, Michele Galluzzo, Michele Tonerini, Massimo Zeccolini, Giuseppe Guglielmi, Vittorio Miele
Thoracic trauma accounts for approximately 14% of blunt force traumatic deaths, second only to head injuries. Chest trauma can be blunt (90% of cases) or penetrating. In young patients, between 60 and 80% of chest injuries result from blunt trauma, with over half as a consequence of impact with motor vehicles, whereas in adolescents and adults, penetrating trauma has a statistically more prominent role. Pulmonary contusions and rib fractures are the most frequent injuries occurring. Chest X-ray is the first imaging modality of choice to identify patients presenting with life-threatening conditions (i...
July 4, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28673445/does-injection-flow-rate-have-an-impact-on-arterial-phase-image-degradation-in-liver-mri-a-comparison-of-gadoxetic-acid-versus-gadobutrol
#15
V Cohen-Hallaleh, L Guo, H Hosseini-Nik, N Razaghi Kashani, R Menezes, K Jhaveri
AIM: To evaluate retrospectively the impact of injection flow rate on arterial phase image degradation in liver magnetic resonance imaging (MRI) with gadoxetic acid (Gd-EOB-DTPA) compared to gadobutrol. MATERIALS AND METHODS: Two hundred consecutive patients who had undergone liver MRI were enrolled in this Health Insurance Portability and Accountability Act (HIPAA)-compliant institutional review board (IRB)-approved study and were divided into three groups. Group 1 (50 patients) and 2 (50 patients) had undergone MRI performed with gadoxetic acid (fixed 10 ml) at flow rate of 1 and 2 ml/s, respectively...
June 30, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28672016/quantitative-assessment-of-simultaneous-f-18-fdg-pet-mri-in-patients-with-various-types-of-hepatic-tumors-correlation-between-glucose-metabolism-and-apparent-diffusion-coefficient
#16
Eunjung Kong, Kyung Ah Chun, Ihn Ho Cho
PURPOSE: Metabolism and water diffusion may have a relationship or an effect on each other in the same tumor. Knowledge of their relationship could expand the understanding of tumor biology and serve the field of oncologic imaging. This study aimed to evaluate the relationship between metabolism and water diffusivity in hepatic tumors using a simultaneous positron emission tomography/magnetic resonance imaging (PET/MRI) system with F-18 fluorodeoxyglucose (FDG) and to reveal the metabolic and diffusional characteristics of each type of hepatic tumor...
2017: PloS One
https://www.readbyqxmd.com/read/28670977/ventricular-volumes-across-stages-of-schizophrenia-and-other-psychoses
#17
Gregor E Berger, Cali F Bartholomeusz, Stephen J Wood, Anthony Ang, Lisa J Phillips, Tina Proffitt, Warrick J Brewer, Deidre J Smith, Barnaby Nelson, Ashleigh Lin, Stefan Borgwardt, Dennis Velakoulis, Alison R Yung, Patrick D McGorry, Christos Pantelis
OBJECTIVE: Ventricular enlargement is common in established schizophrenia; however, data from ultra high-risk for psychosis and first-episode psychosis studies are inconclusive. This study aims to investigate ventricular volumes at different stages of psychosis. METHODS: Ventricular volumes were measured using a semi-automated and highly reliable method, for 89 established schizophrenia, 162 first-episode psychosis, 135 ultra high-risk for psychosis and 87 healthy controls using 1...
June 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28665242/changes-in-use-of-cervical-spine-magnetic-resonance-imaging-for-pediatric-patients-with-nonaccidental-trauma
#18
Ahyuda Oh, Michael Sawvel, David Heaner, Amina Bhatia, Andrew Reisner, R Shane Tubbs, Joshua J Chern
OBJECTIVE Past studies have suggested correlations between abusive head trauma and concurrent cervical spine (c-spine) injury. Accordingly, c-spine MRI (cMRI) has been increasingly used in radiographic assessments. This study aimed to determine trends in cMRI use and treatment, and outcomes related to c-spine injury in children with nonaccidental trauma (NAT). METHODS A total of 503 patients with NAT who were treated between 2009 and 2014 at a single pediatric health care system were identified from a prospectively maintained database...
June 30, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28663254/blood-pressure-and-heart-rate-measures-associated-with-increased-risk-of-covert-brain-infarction-and-worsening-leukoaraiosis-in-older-adults
#19
Lester Y Leung, Traci M Bartz, Kenneth Rice, James Floyd, Bruce Psaty, Jose Gutierrez, W T Longstreth, Kenneth J Mukamal
OBJECTIVE: In people without previous stroke, covert findings on serial magnetic resonance imaging (MRI) of incident brain infarcts and worsening leukoaraiosis are associated with increased risk for ischemic stroke and dementia. We evaluated whether various measures of blood pressure (BP) and heart rate are associated with these MRI findings. APPROACH AND RESULTS: In the CHS (Cardiovascular Health Study), a longitudinal cohort study of older adults, we used relative risk regression to assess the associations of mean, variability, and trend in systolic BP, diastolic BP, and heart rate measured at 4 annual clinic visits between 2 brain MRIs with incident covert brain infarction and worsening white matter grade (using a 10-point scale to characterize leukoaraiosis)...
June 29, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28663047/diagnostic-and-prognostic-value-of-mir-1-and-mir-29b-on-adverse-ventricular-remodeling-after-acute-myocardial-infarction-the-sitagrami-mir-analysis
#20
U Grabmaier, S Clauss, L Gross, I Klier, W M Franz, G Steinbeck, R Wakili, H D Theiss, C Brenner
BACKGROUND: MicroRNAs (miRs) have shown to exert fibrotic and anti-fibrotic effects in preclinical models of acute myocardial infarction (AMI). The aim of this study was to evaluate miR-1, miR-21, miR-29b and miR-92a as circulating biomarkers for adverse ventricular remodeling (AVR) in post-AMI patients. METHODS: Plasma levels of miR-1, miR-21, miR-29b and miR-92a were measured in 44 patients of the SITAGRAMI trial population at day 4, day 9 and 6month after AMI and in 18 matched controls (CTL)...
June 19, 2017: International Journal of Cardiology
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