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Journal of Cardiovascular Magnetic Resonance

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https://www.readbyqxmd.com/read/29669563/a-comparison-of-both-dense-and-feature-tracking-techniques-with-tagging-for-the-cardiovascular-magnetic-resonance-assessment-of-myocardial-strain
#1
J Jane Cao, Nora Ngai, Lynette Duncanson, Joshua Cheng, Kathleen Gliganic, Qizhi Chen
BACKGROUND: Myocardial strain is increasingly recognized as an important assessment for myocardial function. In addition, it also improves outcome prediction. However, there is lack of standardization in strain evaluation by cardiovascular magnetic resonance (CMR). In this study we compared strain values using multiple techniques and multiple vendor products. METHODS: Prospectively recruited patients with cardiomyopathy of diverse etiology (N = 77) and healthy controls (N = 10) underwent CMR on a 1...
April 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29609642/a-comprehensive-characterization-of-myocardial-and-vascular-phenotype-in-pediatric-chronic-kidney-disease-using-cardiovascular-magnetic-resonance-imaging
#2
Mun Hong Cheang, Nathaniel J Barber, Abbas Khushnood, Jakob A Hauser, Gregorz T Kowalik, Jennifer A Steeden, Michael A Quail, Kjell Tullus, Daljit Hothi, Vivek Muthurangu
BACKGROUND: Children with chronic kidney disease (CKD) have increased cardiovascular mortality. Identifying high-risk children who may benefit from further therapeutic intervention is difficult as cardiovascular abnormalities are subtle. Although transthoracic echocardiography may be used to detect sub-clinical abnormalities, it has well-known problems with reproducibility that limit its ability to accurately detect these changes. Cardiovascular magnetic resonance (CMR) is the reference standard method for assessing blood flow, cardiac structure and function...
March 29, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29576016/correction-to-simple-motion-correction-strategy-reduces-respiratory-induced-motion-artifacts-for-k-t-accelerated-and-compressed-sensing-cardiovascular-magnetic-resonance-perfusion-imaging
#3
Ruixi Zhou, Wei Huang, Yang Yang, Xiao Chen, Daniel S Weller, Christopher M Kramer, Sebastian Kozerke, Michael Salerno
Figure 1 of this original publication contained a minor error as one of the lines in the "Reconstruction pipline" was not visible. The updated Fig. 1 is published in this correction article.
March 26, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29562921/gray-blood-late-gadolinium-enhancement-cardiovascular-magnetic-resonance-for-improved-detection-of-myocardial-scar
#4
Ahmed S Fahmy, Ulf Neisius, Connie W Tsao, Sophie Berg, Elizabeth Goddu, Patrick Pierce, Tamer A Basha, Long Ngo, Warren J Manning, Reza Nezafat
BACKGROUND: Low scar-to-blood contrast in late gadolinium enhanced (LGE) MRI limits the visualization of scars adjacent to the blood pool. Nulling the blood signal improves scar detection but results in lack of contrast between myocardium and blood, which makes clinical evaluation of LGE images more difficult. METHODS: GB-LGE contrast is achieved through partial suppression of the blood signal using T2 magnetization preparation between the inversion pulse and acquisition...
March 22, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29554919/the-reproducibility-of-late-gadolinium-enhancement-cardiovascular-magnetic-resonance-imaging-of-post-ablation-atrial-scar-a-cross-over-study
#5
Henry Chubb, Rashed Karim, Sébastien Roujol, Marta Nuñez-Garcia, Steven E Williams, John Whitaker, James Harrison, Constantine Butakoff, Oscar Camara, Amedeo Chiribiri, Tobias Schaeffter, Matthew Wright, Mark O'Neill, Reza Razavi
BACKGROUND: Cardiovascular magnetic resonance (CMR) imaging has been used to visualise post-ablation atrial scar (PAAS), generally employing a three-dimensional (3D) late gadolinium enhancement (LGE) technique. However the reproducibility of PAAS imaging has not been determined. This cross-over study is the first to investigate the reproducibility of the technique, crucial for both future research design and clinical implementation. METHODS: Forty subjects undergoing first time ablation for atrial fibrillation (AF) had detailed CMR assessment of PAAS...
March 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29551091/evaluation-of-skeletal-muscle-microvascular-perfusion-of-lower-extremities-by-cardiovascular-magnetic-resonance-arterial-spin-labeling-blood-oxygenation-level-dependent-and-intravoxel-incoherent-motion-techniques
#6
Shiteng Suo, Lan Zhang, Hui Tang, Qihong Ni, Suqin Li, Haimin Mao, Xiangyu Liu, Shengyun He, Jianxun Qu, Qing Lu, Jianrong Xu
BACKGROUND: Noninvasive cardiovascular magnetic resonance (CMR) techniques including arterial spin labeling (ASL), blood oxygenation level-dependent (BOLD), and intravoxel incoherent motion (IVIM), are capable of measuring tissue perfusion-related parameters. We sought to evaluate and compare these three CMR techniques in characterizing skeletal muscle perfusion in lower extremities and to investigate their abilities to diagnose and assess the severity of peripheral arterial disease (PAD)...
March 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29544519/noninvasive-hematocrit-assessment-for-cardiovascular-magnetic-resonance-extracellular-volume-quantification-using-a-point-of-care-device-and-synthetic-derivation
#7
Sean Robison, Gauri Rani Karur, Rachel M Wald, Paaladinesh Thavendiranathan, Andrew M Crean, Kate Hanneman
BACKGROUND: Calculation of cardiovascular magnetic resonance (CMR) extracellular volume (ECV) requires input of hematocrit, which may not be readily available. The purpose of this study was to evaluate the diagnostic accuracy of ECV calculated using various noninvasive measures of hematocrit compared to ECV calculated with input of laboratory hematocrit as the reference standard. METHODS: One hundred twenty three subjects (47.7 ± 14.1 years; 42% male) were prospectively recruited for CMR T1 mapping between August 2016 and April 2017...
March 15, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29544514/cardiovascular-magnetic-resonance-guided-ablation-and-intra-procedural-visualization-of-evolving-radiofrequency-lesions-in-the-left-ventricle
#8
Philippa R P Krahn, Sheldon M Singh, Venkat Ramanan, Labonny Biswas, Nicolas Yak, Kevan J T Anderson, Jennifer Barry, Mihaela Pop, Graham A Wright
BACKGROUND: Radiofrequency (RF) ablation has become a mainstay of treatment for ventricular tachycardia, yet adequate lesion formation remains challenging. This study aims to comprehensively describe the composition and evolution of acute left ventricular (LV) lesions using native-contrast cardiovascular magnetic resonance (CMR) during CMR-guided ablation procedures. METHODS: RF ablation was performed using an actively-tracked CMR-enabled catheter guided into the LV of 12 healthy swine to create 14 RF ablation lesions...
March 15, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29530064/dynamic-fetal-cardiovascular-magnetic-resonance-imaging-using-doppler-ultrasound-gating
#9
Fabian Kording, Jin Yamamura, Manuela Tavares de Sousa, Christian Ruprecht, Erik Hedström, Anthony H Aletras, P Ellen Grant, Andrew J Powell, Kai Fehrs, Gerhard Adam, Hendrik Kooijman, Bjoern P Schoennagel
BACKGROUND: Fetal cardiovascular magnetic resonance (CMR) imaging may provide a valuable adjunct to fetal echocardiography in the evaluation of congenital cardiovascular pathologies. However, dynamic fetal CMR is difficult due to the lack of direct in-utero cardiac gating. The aim of this study was to investigate the effectiveness of a newly developed Doppler ultrasound (DUS) device in humans for fetal CMR gating. METHODS: Fifteen fetuses (gestational age 30-39 weeks) were examined using 1...
March 12, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29514708/fully-quantitative-pixel-wise-analysis-of-cardiovascular-magnetic-resonance-perfusion-improves-discrimination-of-dark-rim-artifact-from-perfusion-defects-associated-with-epicardial-coronary-stenosis
#10
Allison D Ta, Li-Yueh Hsu, Hannah M Conn, Susanne Winkler, Anders M Greve, Sujata M Shanbhag, Marcus Y Chen, W Patricia Bandettini, Andrew E Arai
BACKGROUND: Dark rim artifacts in first-pass cardiovascular magnetic resonance (CMR) perfusion images can mimic perfusion defects and affect diagnostic accuracy for coronary artery disease (CAD). We evaluated whether quantitative myocardial blood flow (MBF) can differentiate dark rim artifacts from true perfusion defects in CMR perfusion. METHODS: Regadenoson perfusion CMR was performed at 1.5 T in 76 patients. Significant CAD was defined by quantitative invasive coronary angiography (QCA) ≥ 50% diameter stenosis...
March 8, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29499706/test-retest-variability-of-left-ventricular-4d-flow-cardiovascular-magnetic-resonance-measurements-in-healthy-subjects
#11
Victoria M Stoll, Margaret Loudon, Jonatan Eriksson, Malenka M Bissell, Petter Dyverfeldt, Tino Ebbers, Saul G Myerson, Stefan Neubauer, Carl- Johan Carlhäll, Aaron T Hess
BACKGROUND: Quantification and visualisation of left ventricular (LV) blood flow is afforded by three-dimensional, time resolved phase contrast cardiovascular magnetic resonance (CMR 4D flow). However, few data exist upon the repeatability and variability of these parameters in a healthy population. We aimed to assess the repeatability and variability over time of LV 4D CMR flow measurements. METHODS: Forty five controls underwent CMR 4D flow data acquisition...
March 2, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29471856/quantitative-cardiovascular-magnetic-resonance-perfusion-imaging-identifies-reduced-flow-reserve-in-microvascular-coronary-artery-disease
#12
Benjamin Zorach, Peter W Shaw, Jamieson Bourque, Sujith Kuruvilla, Pelbreton C Balfour, Yang Yang, Roshin Mathew, Jonathan Pan, Jorge A Gonzalez, Angela M Taylor, Craig H Meyer, Frederick H Epstein, Christopher M Kramer, Michael Salerno
BACKGROUND: Preliminary semi-quantitative cardiovascular magnetic resonance (CMR) perfusion studies have demonstrated reduced myocardial perfusion reserve (MPR) in patients with angina and risk factors for microvascular disease (MVD), however fully quantitative CMR has not been studied. The purpose of this study is to evaluate whether fully quantitative CMR identifies reduced MPR in this population, and to investigate the relationship between epicardial atherosclerosis, left ventricular hypertrophy (LVH), extracellular volume (ECV), and perfusion...
February 22, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29458430/comparison-of-fast-multi-slice-and-standard-segmented-techniques-for-detection-of-late-gadolinium-enhancement-in-ischemic-and-non-ischemic-cardiomyopathy-a-prospective-clinical-cardiovascular-magnetic-resonance-trial
#13
Fabian Muehlberg, Kristin Arnhold, Simone Fritschi, Stephanie Funk, Marcel Prothmann, Josephine Kermer, Leonora Zange, Florian von Knobelsdorff-Brenkenhoff, Jeanette Schulz-Menger
BACKGROUND: Segmented phase-sensitive inversion recovery (PSIR) cardiovascular magnetic resonance (CMR) sequences are reference standard for non-invasive evaluation of myocardial fibrosis using late gadolinium enhancement (LGE). Several multi-slice LGE sequences have been introduced for faster acquisition in patients with arrhythmia and insufficient breathhold capability. The aim of this study was to assess the accuracy of several multi-slice LGE sequences to detect and quantify myocardial fibrosis in patients with ischemic and non-ischemic myocardial disease...
February 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29458384/cardiovascular-cine-imaging-and-flow-evaluation-using-fast-interrupted-steady-state-fiss-magnetic-resonance
#14
Robert R Edelman, Ali Serhal, Amit Pursnani, Jianing Pang, Ioannis Koktzoglou
BACKGROUND: Existing cine imaging techniques rely on balanced steady-state free precession (bSSFP) or spoiled gradient-echo readouts, each of which has limitations. For instance, with bSSFP, artifacts occur from rapid through-plane flow and off-resonance effects. We hypothesized that a prototype cine technique, radial fast interrupted steady-state (FISS), could overcome these limitations. The technique was compared with standard cine bSSFP for cardiac function, coronary artery conspicuity, and aortic valve morphology...
February 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29429407/non-invasive-differentiation-of-idiopathic-inflammatory-myopathy-with-cardiac-involvement-from-acute-viral-myocarditis-using-cardiovascular-magnetic-resonance-imaging-t1-and-t2-mapping
#15
Adrian T Huber, Marine Bravetti, Jérôme Lamy, Tania Bacoyannis, Charles Roux, Alain de Cesare, Aude Rigolet, Olivier Benveniste, Yves Allenbach, Mathieu Kerneis, Philippe Cluzel, Nadjia Kachenoura, Alban Redheuil
BACKGROUND: Idiopathic inflammatory myopathy (IIM) is a group of autoimmune diseases with systemic myositis which may involve the myocardium. Cardiac involvement in IIM, although often subclinical, may mimic clinical manifestations of acute viral myocarditis (AVM). Our aim was to investigate the usefulness of the combined analysis of cardiovascular magnetic resonance (CMR) T1 and T2 mapping parameters measured both in the myocardium and in the thoracic skeletal muscles to differentiate AVM from IIM cardiac involvement...
February 12, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29422054/differential-flow-improvements-after-valve-replacements-in-bicuspid-aortic-valve-disease-a-cardiovascular-magnetic-resonance-assessment
#16
Malenka M Bissell, Margaret Loudon, Aaron T Hess, Victoria Stoll, Elizabeth Orchard, Stefan Neubauer, Saul G Myerson
BACKGROUND: Abnormal aortic flow patterns in bicuspid aortic valve disease (BAV) may be partly responsible for the associated aortic dilation. Aortic valve replacement (AVR) may normalize flow patterns and potentially slow the concomitant aortic dilation. We therefore sought to examine differences in flow patterns post AVR. METHODS: Ninety participants underwent 4D flow cardiovascular magnetic resonance: 30 BAV patients with prior AVR (11 mechanical, 10 bioprosthetic, 9 Ross procedure), 30 BAV patients with a native aortic valve and 30 healthy subjects...
February 8, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29415744/correction-to-clinical-recommendations-for-cardiovascular-magnetic-resonance-mapping-of-t1-t2-t2-and-extracellular-volume-a-consensus-statement-by-the-society-for-cardiovascular-magnetic-resonance-scmr-endorsed-by-the-european-association-for-cardiovascular
#17
Daniel R Messroghli, James C Moon, Vanessa M Ferreira, Lars Grosse-Wortmann, Taigang He, Peter Kellman, Julia Mascherbauer, Reza Nezafat, Michael Salerno, Erik B Schelbert, Andrew J Taylor, Richard B Thompson, Martin Ugander, Ruud B van Heeswijk, Matthias G Friedrich
J CARDIOVASC MAGN RESON (2017) 19: 75. DOI: 10.1186/S12968-017-0389-8: In the original publication of this article [1] the "Competing interests" section was incorrect. The original publication stated the following competing interests.
February 7, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29386056/simple-motion-correction-strategy-reduces-respiratory-induced-motion-artifacts-for-k-t-accelerated-and-compressed-sensing-cardiovascular-magnetic-resonance-perfusion-imaging
#18
Ruixi Zhou, Wei Huang, Yang Yang, Xiao Chen, Daniel S Weller, Christopher M Kramer, Sebastian Kozerke, Michael Salerno
BACKGROUND: Cardiovascular magnetic resonance (CMR) stress perfusion imaging provides important diagnostic and prognostic information in coronary artery disease (CAD). Current clinical sequences have limited temporal and/or spatial resolution, and incomplete heart coverage. Techniques such as k-t principal component analysis (PCA) or k-t sparcity and low rank structure (SLR), which rely on the high degree of spatiotemporal correlation in first-pass perfusion data, can significantly accelerate image acquisition mitigating these problems...
February 1, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29386064/the-growth-and-evolution-of-cardiovascular-magnetic-resonance-a-20-year-history-of-the-society-for-cardiovascular-magnetic-resonance-scmr-annual-scientific-sessions
#19
REVIEW
Daniel C Lee, Michael Markl, Erica Dall'Armellina, Yuchi Han, Sebastian Kozerke, Titus Kuehne, Sonia Nielles-Vallespin, Daniel Messroghli, Amit Patel, Tobias Schaeffter, Orlando Simonetti, Anne Marie Valente, Jonathan W Weinsaft, Graham Wright, Stefan Zimmerman, Jeanette Schulz-Menger
BACKGROUND AND PURPOSE: The purpose of this work is to summarize cardiovascular magnetic resonance (CMR) research trends and highlights presented at the annual Society for Cardiovascular Magnetic Resonance (SCMR) scientific sessions over the past 20 years. METHODS: Scientific programs from all SCMR Annual Scientific Sessions from 1998 to 2017 were obtained. SCMR Headquarters also provided data for the number and the country of origin of attendees and the number of accepted abstracts according to type...
January 31, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29382349/systemic-arteriosclerosis-is-associated-with-left-ventricular-remodeling-but-not-atherosclerosis-a-tascforce-study
#20
Jonathan R Weir-McCall, Matthew Lambert, Stephen J Gandy, Jill J F Belch, Ian Cavin, Shelley A Henderson, Roberta Littleford, Jennifer A Macfarlane, Shona Z Matthew, R Stephen Nicholas, Allan D Struthers, Frank Sullivan, Richard D White, J Graeme Houston
BACKGROUND: Arteriosclerosis (arterial stiffening) is associated with future cardiovascular events, with this effect postulated to be due to its effect on cardiac afterload, atherosclerosis (plaque formation) progression or both, but with limited evidence examining these early in disease formation. The aim of the current study is to examine the association between arteriosclerosis, atherosclerosis and ventricular remodelling in a population at low-intermediate cardiovascular risk. METHODS: One thousand six hundred fifty-one subjects free of clinical cardiovascular disease and with a < 20% 10 year cardiovascular risk score underwent a cardiovascular magnetic resonance (CMR) study and whole body CMR angiogram...
January 30, 2018: Journal of Cardiovascular Magnetic Resonance
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