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"Cardiovascular magnetic resonance"

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https://www.readbyqxmd.com/read/28453721/apheresis-as-novel-treatment-for-refractory-angina-with-raised-lipoprotein-a-a-randomized-controlled-cross-over-trial
#1
Tina Z Khan, Li-Yueh Hsu, Andrew E Arai, Samantha Rhodes, Alison Pottle, Ricardo Wage, Winston Banya, Peter D Gatehouse, Shivraman Giri, Peter Collins, Dudley J Pennell, Mahmoud Barbir
Aims: To determine the clinical impact of lipoprotein apheresis in patients with refractory angina and raised lipoprotein(a) > 500 mg/L on the primary end point of quantitative myocardial perfusion, as well as secondary end points including atheroma burden, exercise capacity, symptoms, and quality of life. Methods: We conducted a single-blinded randomized controlled trial in 20 patients with refractory angina and raised lipoprotein(a) > 500 mg/L, with 3 months of blinded weekly lipoprotein apheresis or sham, followed by crossover...
April 26, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28448632/correction-right-atrial-volume-by-cardiovascular-magnetic-resonance-predicts-mortality-in-patients-with-heart-failure-with-reduced-ejection-fraction
#2
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0173245.].
2017: PloS One
https://www.readbyqxmd.com/read/28448233/t1-and-t2-mapping-in-recognition-of-early-cardiac-involvement-in-systemic-sarcoidosis
#3
Valentina O Puntmann, Alexander Isted, Rocio Hinojar, Lucy Foote, Gerald Carr-White, Eike Nagel
Purpose To determine whether quantitative tissue characterization with T1 and T2 mapping supports recognition of myocardial involvement in patients with systemic sarcoidosis. Materials and Methods Fifty-three consecutive patients with a biopsy-proven extracardiac diagnosis of systemic sarcoidosis (21 men; median age, 45 years; interquartile range, 22 years) and 36 normotensive previously healthy control subjects (14 men; median age, 43 years; interquartile range, 18 years) underwent cardiovascular magnetic resonance imaging, which was performed to assess cardiac function and late gadolinium enhancement, and T1 and T2 mapping...
April 27, 2017: Radiology
https://www.readbyqxmd.com/read/28439652/myocardial-extracellular-volume-fraction-quantified-by-cardiovascular-magnetic-resonance-is-increased-in-hypertension-and-associated-with-left-ventricular-remodeling
#4
Shuli Wang, Hongjie Hu, Minjie Lu, Arlene Sirajuddin, Jinghui Li, Jing An, Xiuyu Chen, Gang Yin, Tian Lan, Linlin Dai, Yan Zhang, Xiaorong Yin, Lei Song, Aimin Dang, Peter Kellman, Andrew E Arai, Shihua Zhao
OBJECTIVES: To determine whether extracellular volume fraction (ECV) quantification by cardiac magnetic resonance (CMR) can demonstrate left ventricle (LV) abnormalities and relationship between ECV and LV remodeling in hypertension (HTN) patients METHODS: ECV quantification was prospectively performed in 134 consecutive HTN patients and 97 healthy subjects. Individual and regional ECV were compared to the regions on late gadolinium enhancement (LGE) images. Statistical analysis of the relationship between LV global functional parameters and ECV was carried out using Pearson's correlation, Student's t test and multiple regressions...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28424090/targeted-endomyocardial-biopsy-guided-by-real-time-cardiovascular-magnetic-resonance
#5
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/28421174/utility-of-cardiovascular-magnetic-resonance-derived-wave-intensity-analysis-as-a-marker-of-ventricular-function-in-children-with-heart-failure-and-normal-ejection-fraction
#6
Hopewell N Ntsinjana, Robin Chung, Paolo Ciliberti, Vivek Muthurangu, Silvia Schievano, Jan Marek, Kim H Parker, Andrew M Taylor, Giovanni Biglino
OBJECTIVE: This study sought to explore the diagnostic insight of cardiovascular magnetic resonance (CMR)-derived wave intensity analysis to better study systolic dysfunction in young patients with chronic diastolic dysfunction and preserved ejection fraction (EF), comparing it against other echocardiographic and CMR parameters. BACKGROUND: Evaluating systolic and diastolic dysfunctions in children is challenging, and a gold standard method is currently lacking...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28416981/relationship-between-right-and-left-ventricular-function-in-candidates-for-implantable-cardioverter-defibrillator-with-low-left-ventricular-ejection-fraction
#7
Laura Jimenez-Juan, Gauri R Karur, Kim A Connelly, Djeven Deva, Raymond T Yan, Rachel M Wald, Sheldon Singh, General Leung, Anastasia Oikonomou, Paul Dorian, Paul Angaran, Andrew T Yan
BACKGROUND: Indications for the primary prevention of sudden death using an implantable cardioverter defibrillator (ICD) are based predominantly on left ventricular ejection fraction (LVEF). However, right ventricular ejection fraction (RVEF) is also a known prognostic factor in a variety of structural heart diseases that predispose to sudden cardiac death. We sought to investigate the relationship between right and left ventricular parameters (function and volume) measured by cardiovascular magnetic resonance (CMR) among a broad spectrum of patients considered for an ICD...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28415091/moderated-posters-new-advances-in-cardiovascular-magnetic-resonance
#8
(no author information available yet)
No abstract text is available yet for this article.
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28411261/feasibility-and-diagnostic-value-of-cardiovascular-magnetic-resonance-imaging-after-acute-ischemic-stroke-of-undetermined-origin
#9
Karl Georg Haeusler, Christian Wollboldt, Laura Zu Bentheim, Juliane Herm, Sebastian Jäger, Claudia Kunze, Holger-Carsten Eberle, Claudia Christina Deluigi, Oliver Bruder, Carolin Malsch, Peter U Heuschmann, Matthias Endres, Heinrich J Audebert, Andreas J Morguet, Christoph Jensen, Jochen B Fiebach
BACKGROUND AND PURPOSE: Etiology of acute ischemic stroke remains undetermined (cryptogenic) in about 25% of patients after state-of-the-art diagnostic work-up. METHODS: One-hundred and three patients with magnetic resonance imaging (MRI)-proven acute ischemic stroke of undetermined origin were prospectively enrolled and underwent 3-T cardiac MRI and magnetic resonance angiography of the aortic arch in addition to state-of-the-art diagnostic work-up, including transesophageal echocardiography (TEE)...
April 14, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28400918/patient-selection-for-transcatheter-aortic-valve-replacement-a-combined-clinical-and-multimodality-imaging-approach
#10
REVIEW
Rosangela Cocchia, Antonello D'Andrea, Marianna Conte, Massimo Cavallaro, Lucia Riegler, Rodolfo Citro, Cesare Sirignano, Massimo Imbriaco, Maurizio Cappelli, Giovanni Gregorio, Raffaele Calabrò, Eduardo Bossone
Transcatheter aortic valve replacement (TAVR) has been validated as a new therapy for patients affected by severe symptomatic aortic stenosis who are not eligible for surgical intervention because of major contraindication or high operative risk. Patient selection for TAVR should be based not only on accurate assessment of aortic stenosis morphology, but also on several clinical and functional data. Multi-Imaging modalities should be preferred for assessing the anatomy and the dimensions of the aortic valve and annulus before TAVR...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28395671/longitudinal-assessment-of-right-ventricular-structure-and-function-by-cardiovascular-magnetic-resonance-in-breast-cancer-patients-treated-with-trastuzumab-a-prospective-observational-study
#11
Ashita Barthur, Christine Brezden-Masley, Kim A Connelly, Vinita Dhir, Kelvin K W Chan, Rashida Haq, Anish Kirpalani, Joseph J Barfett, Laura Jimenez-Juan, Gauri R Karur, Djeven P Deva, Andrew T Yan
BACKGROUND: There are limited data on the effects of trastuzumab on the right ventricle (RV). Therefore, we sought to evaluate the temporal changes in right ventricular (RV) structure and function as measured by cardiovascular magnetic resonance (CMR), and their relationship with left ventricular (LV) structure and function in breast cancer patients treated with trastuzumab. METHODS: Prospective, longitudinal, observational study involving 41 women with HER2+ breast cancer who underwent serial CMR at baseline, 6, 12, and 18 months after initiation of trastuzumab...
April 10, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28395012/extensive-atrial-fibrosis-assessed-by-late-gadolinium-enhancement-cardiovascular-magnetic-resonance-associated-with-advanced-interatrial-block-electrocardiogram-pattern
#12
Eva María Benito, Antonio Bayés De Luna, Adrian Baranchuk, Lluis Mont
No abstract text is available yet for this article.
March 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28390413/does-stress-perfusion-imaging-improve-the-diagnostic-accuracy-of-late-gadolinium-enhanced-cardiac-magnetic-resonance-for-establishing-the-etiology-of-heart-failure
#13
Gaurav S Gulsin, Abishek Shetye, Jeffrey Khoo, Daniel J Swarbrick, Eylem Levelt, Florence Y Lai, Iain B Squire, Jayanth R Arnold, Gerry P McCann
BACKGROUND: Late gadolinium enhanced cardiovascular magnetic resonance (LGE-CMR) has excellent specificity, sensitivity and diagnostic accuracy for differentiating between ischemic cardiomyopathy (ICM) and non-ischemic dilated cardiomyopathy (NICM). CMR first-pass myocardial perfusion imaging (perfusion-CMR) may also play role in distinguishing heart failure of ischemic and non-ischemic origins, although the utility of additional of stress perfusion imaging in such patients is unclear...
April 8, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28389968/predictors-of-left-ventricular-remodeling-after-st-elevation-myocardial-infarction
#14
Tom Hendriks, Minke H T Hartman, Pieter J J Vlaar, Niek H J Prakken, Yldau M Y van der Ende, Chris P H Lexis, Dirk J van Veldhuisen, Iwan C C van der Horst, Erik Lipsic, Robin Nijveldt, Pim van der Harst
Adverse left ventricular (LV) remodeling after acute ST-elevation myocardial infarction (STEMI) is associated with morbidity and mortality. We studied clinical, biochemical and angiographic determinants of LV end diastolic volume index (LVEDVi), end systolic volume index (LVESVi) and mass index (LVMi) as global LV remodeling parameters 4 months after STEMI, as well as end diastolic wall thickness (EDWT) and end systolic wall thickness (ESWT) of the non-infarcted myocardium, as compensatory remote LV remodeling parameters...
April 7, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28387860/prolonged-central-circulation-transit-time-in-patients-with-hfpef-and-hfref-by-magnetic-resonance-imaging
#15
Jie J Cao, Laura Li, Jeannette McLaughlin, Michael Passick
Aims: Prolonged central circulation transit time (TT) has long been associated with heart failure (HF) and left ventricular (LV) dysfunction. In this study, we assessed the central circulation TT using cardiovascular magnetic resonance imaging (CMR) in patients with HF of preserved ejection fraction (HFpEF) and of reduced EF (HFrEF) and investigated its relation to haemodynamics. Methods and results: Fifty eight prospectively recruited volunteers underwent CMR. TT was taken as the time between the peaks of time-intensity curves from first pass perfusion images and normalized to cardiac cycle length intervals...
April 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28385161/myocardial-perfusion-cardiovascular-magnetic-resonance-optimized-dual-sequence-and-reconstruction-for-quantification
#16
Peter Kellman, Michael S Hansen, Sonia Nielles-Vallespin, Jannike Nickander, Raquel Themudo, Martin Ugander, Hui Xue
BACKGROUND: Quantification of myocardial blood flow requires knowledge of the amount of contrast agent in the myocardial tissue and the arterial input function (AIF) driving the delivery of this contrast agent. Accurate quantification is challenged by the lack of linearity between the measured signal and contrast agent concentration. This work characterizes sources of non-linearity and presents a systematic approach to accurate measurements of contrast agent concentration in both blood and myocardium...
April 7, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28381081/cardiac-imaging-in-patients-with-acute-or-chronic-heart-failure
#17
Giorgio Faganello, Sara Doimo, Concetta DI Nora, Andrea DI Lenarda
In recent years, imaging techniques have revolutionized the diagnosis of heart failure (HF) and they are indispensable for clinical decision-making in patients with acute and chronic HF. Echocardiography remains a first-line test in HF and continues to provide valuable information on left ventricular and valvular function. However, there is increasing evidence to integrate imaging modalities such as cardiovascular magnetic resonance, positron emission tomography and computed tomography, in the clinical care...
April 4, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28379401/adverse-prognosis-associated-with-asymmetric-myocardial-thickening-in-aortic-stenosis
#18
Jacek Kwiecinski, Calvin W L Chin, Russell J Everett, Audrey C White, Scott Semple, Emily Yeung, William J Jenkins, Anoop S V Shah, Maria Koo, Saeed Mirsadraee, Chim C Lang, Nicholas Mills, Sanjay K Prasad, Maurits A Jansen, Alan G Japp, David E Newby, Marc R Dweck
Aims: Asymmetric wall thickening has been described in patients with aortic stenosis. However, it remains poorly characterized and its prognostic implications are unclear. We hypothesized this pattern of adaptation is associated with advanced remodelling, left ventricular decompenzation, and a poor prognosis. Methods and results: In a prospective observational cohort study, 166 patients with aortic stenosis (age 69, 69% males, mean aortic valve area 1.0 ± 0...
March 30, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28379356/decreased-glycolytic-metabolism-in-non-compaction-cardiomyopathy-by-18f-fluoro-2-deoxyglucose-positron-emission-tomography-new-insights-into-pathophysiological-mechanisms-and-clinical-implications
#19
Marcelo Dantas Tavares de Melo, Maria Clementina Pinto Giorgi, Antonildes Nascimento Assuncao, Roberto Nery Dantas, Jose de Arimateia Araujo Filho, Jose Rodrigues Parga Filho, Ana Luiza de Souza Bierrenbach, Camila Rocon de Lima, José Soares, José Claudio Meneguetti, Charles Mady, Ludhmila Abrahão Hajjar, Roberto Kalil Filho, Edimar Alcides Bocchi, Vera Maria Cury Salemi
Aims: The pathophysiological mechanisms of left ventricular non-compaction cardiomyopathy (LVNC) remain controversial. This study performed combined 18F-fluoro-2-deoxyglucose dynamic positron emission tomography (FDG-PET) and 99mTc-sestamibi single-photon emission computed tomography (SPECT) studies to evaluate myocardial glucose metabolism and perfusion in patients with LVNC and their clinical implications. Methods and results: Thirty patients (41 ± 12 years, 53% male) with LVNC, diagnosed by cardiovascular magnetic resonance (CMR) criteria, and eight age-matched healthy controls (42 ± 12 years, 50% male) were prospectively recruited to undergo FDG-PET with measurement of the myocardial glucose uptake rate (MGU) and SPECT to investigate perfusion-metabolism patterns...
March 30, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28379022/-the-role-of-cardiovascular-magnetic-resonance-imaging-in-the-diagnosis-of-hypertrophic-cardiomyopathy-part-i
#20
Martin Pleva, Júlia Borová, Ilona Plevová, Jaroslav Januška, Margita Belicová
Hypertrophic cardiomyopathy is the most common genetic cardiomyopathy in our population. The diagnosis of this disease is based on imaging methods, mainly echocardiography. Cardiac magnetic resonance offers more accurate and detailed information about the disease than echocardiography. Development of this method has become a standard part of the diagnostic algorithm. In the first part of review, the authors analyze the potential and significance of cardiac magnetic resonance in the diagnosis of hypertrophic cardiomyopathy...
2017: Vnitr̆ní Lékar̆ství
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