keyword
MENU ▼
Read by QxMD icon Read
search

Cardiovascular MR

keyword
https://www.readbyqxmd.com/read/28427867/outcomes-from-anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-repair-long-term-complications-in-relation-to-residual-myocardial-abnormalities
#1
Miki Kanoh, Kei Inai, Tokuko Shinohara, Hirofumi Tomimatsu, Toshio Nakanishi
BACKGROUND: Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital coronary artery irregularity. This study aimed to clarify the long-term postoperative outcomes in ALCAPA patients, and to compare the infantile and adult types. METHODS: We retrospectively analyzed the clinical data from 33 patients with ALCAPA who underwent surgical repairs after 1980. The patients were grouped based on whether presentation occurred before (infantile type: n=14) or after (adult type: n=19) 1 year of age...
April 17, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28424468/effect-of-handgrip-on-coronary-artery-disease-and-myocardial-infarction-a-mendelian-randomization-study
#2
Lin Xu, Yuan Tao Hao
Observational studies have reported an association of handgrip strength with risk of cardiovascular disease. However, residual confounding and reverse causation may have influenced these findings. A Mendelian randomization (MR) study was conducted to examine whether handgrip is causally associated with cardiovascular disease. Two single nucleotide polymorphisms (SNPs), rs3121278 and rs752045, were used as the genetic instruments for handgrip. The effect of each SNP on coronary artery disease/myocardial infarction (CAD/MI) was weighted by its effect on handgrip strength, and estimates were pooled to provide a summary measure for the effect of increased handgrip on risk of CAD/MI...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424090/targeted-endomyocardial-biopsy-guided-by-real-time-cardiovascular-magnetic-resonance
#3
Christina Unterberg-Buchwald, Christian Oliver Ritter, Verena Reupke, Robin Niklas Wilke, Christine Stadelmann, Michael Steinmetz, Andreas Schuster, Gerd Hasenfuß, Joachim Lotz, Martin Uecker
BACKGROUND: Endomyocardial biopsies (EMB) are an important diagnostic tool for myocarditis and other infiltrative cardiac diseases. Routinely, biopsies are obtained under fluoroscopic guidance with a substantial radiation burden. Despite procedural success, there is a large sampling error caused by missing the affected myocardium. Therefore, multiple (>6) biopsies are taken in the clinical setting. In cardiovascular magnetic resonance (CMR), late gadolinium enhancement (LGE) depicts areas of affected myocardium in myocarditis or in other infiltrative cardiomyopathies...
April 19, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28418811/hypertrabeculated-left-ventricular-myocardium-in-relationship-to-myocardial-function-and-fibrosis-the-multi-ethnic-study-of-atherosclerosis
#4
Nadine Kawel-Boehm, Robyn L McClelland, Filip Zemrak, Gabriella Captur, W Gregory Hundley, Chia-Ying Liu, James C Moon, Steffen E Petersen, Bharath Ambale-Venkatesh, João A C Lima, David A Bluemke
Purpose To determine if excess greater left ventricle (LV) trabeculation is associated with decreased average regional myocardial function, diffuse fibrosis, or both. Materials and Methods This was a HIPAA-compliant institutional board approved multicenter study, and all participants provided written informed consent. Participants in the Multi-Ethnic Study of Atherosclerosis (MESA) underwent a comprehensive cardiac magnetic resonance (MR) examination. LV trabeculation was measured with the maximal apical fractal dimension (FD), which is a marker of endocardial complexity...
April 17, 2017: Radiology
https://www.readbyqxmd.com/read/28415082/p210long-term-outcome-of-primary-mitral-valve-prolapse-results-from-a-population-of-250-patients-referred-to-a-tertiary-cardiovascular-center
#5
V Mecarocci, F Mori
Background: Outcome of Mitral Valve Prolapse (MVP) was controversial for long time. Many studies reported great differences in the incidence of cardiovascular events due, above all, to heterogeneous and small studied populations. Most of theme were also published to late '80 of the last century till early '00. Purpose: To make a contemporary survey on the incidence of cardiovascular events in a selected population of patients affected by primary MVP referred to a tertiary cardiovascular center for the medical and surgical care of valvular heart disease...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412421/change-in-carotid-plaque-components-a-4-year-follow-up-study-with-serial-mr-imaging
#6
Laura Pletsch-Borba, Mariana Selwaness, Aad van der Lugt, Albert Hofman, Oscar H Franco, Meike W Vernooij
OBJECTIVES: The goal of this study was to determine how carotid plaque components (e.g., intraplaque hemorrhage [IPH], calcification, lipid core) change over time and which cardiovascular risk factors are associated with the development of each component. BACKGROUND: Carotid atherosclerotic plaque components are important markers of plaque vulnerability. How these components change and which factors lead to the development and changes in the components remain unclear...
April 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28409253/review-of-key-concepts-in-magnetic-resonance-physics
#7
REVIEW
Michael M Moore, Taylor Chung
MR physics can be a challenging subject for practicing pediatric radiologists. Although many excellent texts provide very comprehensive reviews of the field of MR physics at various levels of understanding, the authors of this paper explain several key concepts in MR physics that are germane to clinical practice in a non-rigorous but practical fashion. With the basic understanding of these key concepts, practicing pediatric radiologists can build on their knowledge of current clinical MR techniques and future advances in MR applications...
May 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28390532/cardiac-applications-of-pet-mr-imaging
#8
REVIEW
Jeffrey M C Lau, Richard Laforest, Felix Nensa, Jie Zheng, Robert J Gropler, Pamela K Woodard
Simultaneous acquisition PET/MR imaging combines the anatomic capabilities of cardiac MR imaging with quantitative capabilities of both PET and MR imaging. Cardiac PET/MR imaging has the potential not only to assess cardiac tumors but also to provide thorough assessment of myocardial ischemia, infarction, and function and specific characterization of cardiomyopathies, such as cardiac sarcoid. In this article, the authors start with a discussion of the technical challenges specific to cardiovascular PET/MR imaging followed by a discussion of the use of PET/MR imaging in various cardiovascular conditions...
May 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/28364199/flow-dynamics-and-energy-efficiency-of-flow-in-the-left-ventricle-during-myocardial-infarction
#9
Vivek Vasudevan, Adriel Jia Jun Low, Sarayu Parimal Annamalai, Smita Sampath, Kian Keong Poh, Teresa Totman, Muhammad Mazlan, Grace Croft, A Mark Richards, Dominique P V de Kleijn, Chih-Liang Chin, Choon Hwai Yap
Cardiovascular disease is a leading cause of death worldwide, where myocardial infarction (MI) is a major category. After infarction, the heart has difficulty providing sufficient energy for circulation, and thus, understanding the heart's energy efficiency is important. We induced MI in a porcine animal model via circumflex ligation and acquired multiple-slice cine magnetic resonance (MR) images in a longitudinal manner-before infarction, and 1 week (acute) and 4 weeks (chronic) after infarction. Computational fluid dynamic simulations were performed based on MR images to obtain detailed fluid dynamics and energy dynamics of the left ventricles...
March 31, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28356036/new-imaging-frontiers-in-cardiology-fast-and-quantitative-maps-from-raw-data
#10
Maria Filomena Santarelli, Nicola Vanello, Michele Scipioni, Giuseppe Valvano, Luigi Landini
BACKGROUND: Among the novelties in the field of cardiovascular imaging, the construction of quantitative maps in a fast and efficient way is one of the most interesting aspects of the clinical research. Quantitative parametric maps are typically obtained by post processing dynamic images, that is, sets of images usually acquired in different temporal intervals, where several images with different contrasts are obtained. Magnetic resonance (MR) imaging, and emission tomography (positron emission and single photon emission) are the imaging techniques best suited for the formation of quantitative maps...
March 28, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28348113/nongenomic-effects-via-the-mineralocorticoid-receptor
#11
Stefanie Ruhs, Alexander Nolze, Ralf Hübschmann, Claudia Grossmann
The mineralocorticoid receptor (MR) belongs to the steroid hormone receptor family and classically functions as a ligand-dependent transcription factor. It is involved in water-electrolyte homeostasis and blood pressure regulation but independently from these effects also furthers inflammation, fibrosis, hypertrophy and remodeling in cardiovascular tissues. Next to genomic effects, aldosterone elicits very rapid actions within minutes that do not require transcription or translation and that occur both in classical MR epithelial target organs like kidney and colon but also in nonepithelial tissues with special pathophysiological relevance like heart and vasculature and adipose tissue...
March 27, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28345679/impact-of-climate-conditions-on-hospital-admissions-for-subcategories-of-cardiovascular-diseases
#12
Sanja Bijelović, Nataša Dragić, Milorad Bijelović, Mila Kovačević, Marija Jevtić, Olivera Ninkovic Mrđenovački
BACKGROUND: The aim of this study has been to examine the association between climate conditions (CC) and hospital admissions for the subcategories of cardiovascular diseases (CVD), according to patients' age. MATERIAL AND METHODS: From January 2010 through December 2011, the daily number of hospital admissions for angina pectoris (AP), essential hypertension (EH), acute myocardial infarction (AMI) and ischemic heart diseases (IHD) for adults (19-64 years old) and the elderly (≥ 65 years old), as well as for the CC (N = 728 days) was collected for multivariate Poisson regression analysis, confounding with season and weekends...
March 24, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28338810/associations-of-proatrial-natriuretic-peptide-with-components-of-the-metabolic-syndrome-in-adolescents-and-young-adults-from-the-general-population
#13
Tina S Goharian, Jens P Goetze, Jens Faber, Lars B Andersen, Anders Grøntved, Jørgen L Jeppesen
BACKGROUND: In middle-aged and elderly populations, circulating natriuretic peptide concentrations are negatively associated with several components of the metabolic syndrome. Whether these negative associations are also present in healthy adolescents and young adults from the general population are unknown. METHODS: In a cross-sectional setting, we measured plasma concentrations of mid-regional proatrial natriuretic peptide (MR-proANP) in 343 adolescents (age 14-16 years) and 616 young adults (age 20-28 years) from the Danish site of the European Youth Heart Study, which is a population-based study of cardiovascular disease risk factors in children, adolescents and young adults...
February 23, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28321471/feasibility-of-in-vivo-18-f-florbetaben-pet-mr-imaging-of-human-carotid-amyloid-%C3%AE
#14
Jan Bucerius, Henryk Barthel, Solveig Tiepolt, Peter Werner, Judith C Sluimer, Joachim E Wildberger, Marianne Patt, Swen Hesse, Hermann-Josef Gertz, Erik A L Biessen, Felix M Mottaghy, Osama Sabri
PURPOSE: Amyloid-beta (Aβ) peptides are involved in the inflammatory pathology of atherosclerosis. (18)F-Florbetaben is a PET tracer for clinical imaging of cerebral Aβ plaques in Alzheimer's disease (AD). We sought to determine whether specific uptake of (18)F-florbetaben in the carotid arteries can be identified using a fully integrated hybrid PET/MRI system and whether this uptake is associated with clinical cardiovascular disease (CVD) risk factors. METHODS: Carotid (18)F-florbetaben uptake was quantified as the mean of the maximum target-to-background ratio (meanTBRmax) in 40 cognitively impaired subjects (age 68...
March 21, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28306208/evaluation-of-myocardial-microcirculation-using-intravoxel-incoherent-motion-imaging
#15
Anna Mou, Chen Zhang, Mengying Li, Fengqiang Jin, Qingwei Song, Ailian Liu, Zhiyong Li
PURPOSE: To explore whether cardiac magnetic resonance-intravoxel incoherent motion imaging (MR-IVIM) is feasible for the clinical evaluation of myocardial microcirculation. MATERIALS AND METHODS: The study included 30 patients (with hypertrophic cardiomyopathy, diabetes mellitus, hypertension, or combined diabetes and hypertension) and 34 healthy volunteers. MR-IVIM with a maximum gradient strength of 50 mT/m was performed on the left ventricular short axis (apex, middle, and base), using multiple b values (0-500 s/mm(2) ) on a 3...
March 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28304303/trends-predictors-and-outcomes-of%C3%A2-healthcare-resources-used-in-patients-hospitalized-with-alzheimer-s-disease-with%C3%A2-at-least-one-procedure-the%C3%A2-nationwide-inpatient-sample
#16
May A Beydoun, Alyssa A Gamaldo, Hind A Beydoun, Danielle Shaked, Alan B Zonderman, Shaker M Eid
We assessed trends, predictors and outcomes of resource utilization in hospital inpatient discharges with a principal diagnosis of Alzheimer's disease (AD) with at least one procedure. Using Nationwide Inpatient Sample data (NIS, 2002-2012), discharges primarily diagnosed with AD, aged ≥60 y and with ≥1 procedure, were selected (Weighted N = 92,300). Hospital resource utilization were assessed using ICD-9-CM codes, while hospitalization outcomes included total charges (TC, 2012$), length of stay (LOS, days), and mortality risk (MR, %)...
March 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28303751/vasoactive-peptides-associate-with-treatment-outcome-ofbevacizumab-containing-therapy-in-metastatic-colorectal-cancer
#17
Helga Hagman, Pär-Ola Bendahl, Olle Melander, Jan Sundberg, Anders Johnsson, Mattias Belting
BACKGROUND: Hypertension is a common early adverse event of anti-angiogenic treatment of cancer and may associate with treatment response. However, blood pressure measurement as a surrogate response biomarker has methodological limitations, and predictive biomarkers of angiogenesis inhibitors are lacking. In disease associated with hypertension, vasoactive peptides have been linked to cardiovascular pressure load. Here, we have explored potential associations between circulating levels of vasoactive peptides and tumor response during bevacizumab-containing treatment of colorectal cancer...
March 17, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28298470/genetically-driven-hyperglycemia-increases-risk-of-coronary-artery-disease-separately-from-type-2-diabetes
#18
Jordi Merino, Aaron Leong, Daniel C Posner, Bianca Porneala, Lluís Masana, Josée Dupuis, Jose C Florez
OBJECTIVE: This study tested the hypothesis that genetically raised hyperglycemia increases coronary artery disease (CAD) risk separately from the risk conferred by type 2 diabetes as a whole. RESEARCH DESIGN AND METHODS: We conducted a Mendelian randomization (MR) analysis using summary-level statistics from the largest published meta-analyses of genome-wide association studies (GWAS) for fasting glucose (FG) (n = 133,010 participants free of diabetes) and CAD (n = 63,746 case subjects and 130,681 control subjects) of predominantly European ancestry...
March 15, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28290172/frequency-mechanism-and-severity-of-mitral-regurgitation-are-there-any-differences-between-primary-and-secondary-mitral-regurgitation
#19
José L Zamorano, Juan Manuel Monteagudo, Dolores Mesa, Teresa Gonzalez-Alujas, Marta Sitges, Fernando Carrasco-Chinchilla, Chi-Hion Li, Antonio Grande-Trillo, Amparo Martinez, Javier Matabuena, David Alonso-Rodriguez, Covadonga Fernandez-Golfin
BACKGROUND: Although mitral regurgitation (MR) is a well-recognized prognosis factor, its true prevalence is probably underestimated and its etiology and mechanisms have not been sufficiently explored. The study aim was to evaluate the burden of MR, focusing attention on its frequency, severity, etiology, mechanism, and other associated conditions. METHODS: Between February and June 2015, a total of 39,855 consecutive echocardiographic studies was performed at nine tertiary hospitals, and were prospectively included in the study...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28288425/cardiovascular-risk-from-water-arsenic-exposure-in-vietnam-application-of-systematic-review-and-meta-regression-analysis-in-chemical-health-risk-assessment
#20
REVIEW
Dung Phung, Des Connell, Shannon Rutherford, Cordia Chu
A systematic review (SR) and meta-analysis cannot provide the endpoint answer for a chemical risk assessment (CRA). The objective of this study was to apply SR and meta-regression (MR) analysis to address this limitation using a case study in cardiovascular risk from arsenic exposure in Vietnam. Published studies were searched from PubMed using the keywords of arsenic exposure and cardiovascular diseases (CVD). Random-effects meta-regression was applied to model the linear relationship between arsenic concentration in water and risk of CVD, and then the no-observable-adverse-effect level (NOAEL) were identified from the regression function...
March 6, 2017: Chemosphere
keyword
keyword
78359
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"