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Journal of Cardiovascular Magnetic Resonance

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https://www.readbyqxmd.com/read/28095878/black-blood-thrombus-imaging-bti-a-contrast-free-cardiovascular-magnetic-resonance-approach-for-the-diagnosis-of-non-acute-deep-vein-thrombosis
#1
Guoxi Xie, Hanwei Chen, Xueping He, Jianke Liang, Wei Deng, Zhuonan He, Yufeng Ye, Qi Yang, Xiaoming Bi, Xin Liu, Debiao Li, Zhaoyang Fan
BACKGROUND: Deep vein thrombosis (DVT) is a common but elusive illness that can result in long-term disability or death. Accurate detection of thrombosis and assessment of its size and distribution are critical for treatment decision-making. In the present study, we sought to develop and evaluate a cardiovascular magnetic resonance (CMR) black-blood thrombus imaging (BTI) technique, based on delay alternating with nutation for tailored excitation black-blood preparation and variable flip angle turbo-spin-echo readout, for the diagnosis of non-acute DVT...
January 18, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28088917/effects-of-heart-valve-prostheses-on-phase-contrast-flow-measurements-in-cardiovascular-magnetic-resonance-a-phantom-study
#2
Johanna Richau, Matthias A Dieringer, Julius Traber, Florian von Knobelsdorff-Brenkenhoff, Andreas Greiser, Carsten Schwenke, Jeanette Schulz-Menger
BACKGROUND: Cardiovascular Magnetic Resonance is often used to evaluate patients after heart valve replacement. This study systematically analyses the influence of heart valve prostheses on phase contrast measurements in a phantom trial. METHODS: Two biological and one mechanical aortic valve prostheses were integrated in a flow phantom. B0 maps and phase contrast measurements were acquired at a 1.5 T MR scanner using conventional gradient-echo sequences in predefined distances to the prostheses...
January 16, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28081721/splenic-t1-mapping-a-novel-quantitative-method-for-assessing-adenosine-stress-adequacy-for-cardiovascular-magnetic-resonance
#3
Alexander Liu, Rohan S Wijesurendra, Rina Ariga, Masliza Mahmod, Eylem Levelt, Andreas Greiser, Mario Petrou, George Krasopoulos, John C Forfar, Rajesh K Kharbanda, Keith M Channon, Stefan Neubauer, Stefan K Piechnik, Vanessa M Ferreira
BACKGROUND: Perfusion cardiovascular magnetic resonance (CMR) performed with inadequate adenosine stress leads to false-negative results and suboptimal clinical management. The recently proposed marker of adequate stress, the "splenic switch-off" sign, detects splenic blood flow attenuation during stress perfusion (spleen appears dark), but can only be assessed after gadolinium first-pass, when it is too late to optimize the stress response. Reduction in splenic blood volume during adenosine stress is expected to shorten native splenic T1, which may predict splenic switch-off without the need for gadolinium...
January 13, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28065166/the-predictive-capabilities-of-a-novel-cardiovascular-magnetic-resonance-derived-marker-of-cardiopulmonary-reserve-on-established-prognostic-surrogate-markers-in-patients-with-pulmonary-vascular-disease-results-of-a-longitudinal-pilot-study
#4
Timothy J Baillie, Samuel Sidharta, Peter M Steele, Stephen G Worthley, Scott Willoughby, Karen Teo, Prashanthan Sanders, Stephen J Nicholls, Matthew I Worthley
BACKGROUND: No unified method exists to effectively predict and monitor progression of pulmonary arterial hypertension (PAH). We assessed the longitudinal relationship between a novel marker of cardiopulmonary reserve and established prognostic surrogate markers in patients with pulmonary vascular disease. METHODS AND RESULTS: Twenty participants with confirmed (n = 14) or at high risk (n = 6) for PAH underwent cardiovascular magnetic resonance (CMR) at baseline and after ~6 months of guideline-appropriate management...
January 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28077133/t1-and-t2-mapping-for-evaluation-of-myocardial-involvement-in-patients-with-anca-associated-vasculitides
#5
Simon Greulich, Agnes Mayr, Daniel Kitterer, Joerg Latus, Joerg Henes, Hannah Steubing, Philipp Kaesemann, Alexandru Patrascu, Andreas Greiser, Stefan Groeninger, Niko Braun, M Dominik Alscher, Udo Sechtem, Heiko Mahrholdt
BACKGROUND: Myocardial involvement in AAV patients might be silent, presenting with no or nonspecific symptoms, normal ECG, and preserved left-ventricular ejection fraction (LV-EF). Since up to 50% of deaths in these patients may be due to myocardial involvement, a reliable diagnostic tool is warranted. In contrast to LGE-CMR, which has its strengths in detecting focal inflammatory or fibrotic processes, recent mapping techniques are able to detect even subtle, diffuse inflammatory or fibrotic processes...
January 6, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28063459/cardiac-remodeling-following-reperfused-acute-myocardial-infarction-is-linked-to-the-concomitant-evolution-of-vascular-function-as-assessed-by-cardiovascular-magnetic-resonance
#6
Olivier Huttin, Damien Mandry, Romain Eschalier, Lin Zhang, Emilien Micard, Freddy Odille, Marine Beaumont, Renaud Fay, Jacques Felblinger, Edoardo Camenzind, Faïez Zannad, Nicolas Girerd, Pierre Y Marie
BACKGROUND: Left ventricular (LV) remodeling following acute myocardial infarction (MI) is difficult to predict at an individual level although a possible interfering role of vascular function has yet to be considered to date. This study aimed to determine the extent to which this LV remodeling is influenced by the concomitant evolution of vascular function and LV loading conditions, as assessed by phase-contrast Cardiovascular Magnetic Resonance (CMR) of the ascending aorta. METHODS: CMR was performed in 121 patients, 2-4 days after reperfusion of a first ST-segment elevation myocardial infarction and 6 months thereafter...
January 4, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27955698/histologic-validation-of-myocardial-fibrosis-measured-by-t1-mapping-a-systematic-review-and-meta-analysis
#7
Kai-Yue Diao, Zhi-Gang Yang, Hua-Yan Xu, Xi Liu, Qin Zhang, Ke Shi, Li Jiang, Lin-Jun Xie, Ling-Yi Wen, Ying-Kun Guo
BACKGROUND: Myocardial fibrosis is being increasingly recognised as a common final pathway of a wide range of diseases. Thus, the development of an accurate and convenient method to evaluate myocardial fibrosis is of major importance. Although T1 mapping is a potential alternative for myocardial biopsy, validation studies are limited to small numbers and vary regarding technical facets, and include only a restricted number of disease. A systematic review and meta-analysis was conducted to objectively and comprehensively evaluate the performance of T1 mapping on the quantification of myocardial fibrosis using cardiovascular magnetic resonance (CMR)...
December 12, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27964736/feasibility-of-cardiovascular-magnetic-resonance-derived-coronary-wave-intensity-analysis
#8
Claire E Raphael, Jennifer Keegan, Kim H Parker, Robin Simpson, Julian Collinson, Vass Vassiliou, Ricardo Wage, Peter Drivas, Stephen Strain, Robert Cooper, Ranil de Silva, Rod H Stables, Carlo Di Mario, Michael Frenneaux, Dudley J Pennell, Justin E Davies, Alun D Hughes, David Firmin, Sanjay K Prasad
BACKGROUND: Wave intensity analysis (WIA) of the coronary arteries allows description of the predominant mechanisms influencing coronary flow over the cardiac cycle. The data are traditionally derived from pressure and velocity changes measured invasively in the coronary artery. Cardiovascular magnetic resonance (CMR) allows measurement of coronary velocities using phase velocity mapping and derivation of central aortic pressure from aortic distension. We assessed the feasibility of WIA of the coronary arteries using CMR and compared this to invasive data...
December 9, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27931223/pattern-and-prognostic-value-of-cardiac-involvement-in-patients-with-late-onset-pompe-disease-a-comprehensive-cardiovascular-magnetic-resonance-approach
#9
Matthias Boentert, Anca Florian, Bianca Dräger, Peter Young, Ali Yilmaz
BACKGROUND: Pompe disease is an autosomal recessive disorder caused by deficiency of the lysosomal α-1,4-glucosidase leading to accumulation of glycogen in target tissues with progressive organ failure. While the early infantile-onset form is characterized by early severe hypertrophic cardiomyopathy with cardiac and respiratory failure, clinically relevant cardiomyopathy seems to be uncommon in patients with late-onset Pompe disease, and the prevalence and nature of myocardial abnormalities are still to be clarified...
December 7, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27908279/co-existing-intracranial-and-extracranial-carotid-artery-atherosclerotic-plaques-and-recurrent-stroke-risk-a-three-dimensional-multicontrast-cardiovascular-magnetic-resonance-study
#10
Yilan Xu, Chun Yuan, Zechen Zhou, Le He, Donghua Mi, Rui Li, Yuanyuan Cui, Yilong Wang, Yongjun Wang, Gaifen Liu, Zhuozhao Zheng, Xihai Zhao
BACKGROUND: As a systemic disease, atherosclerosis commonly affects intracranial and extracranial carotid arteries simultaneously which is defined as co-existing plaques. Previous studies demonstrated that co-existing atherosclerotic diseases are significantly associated with ischemic cerebrovascular events. The aim of this study was to investigate the characteristics of co-existing intracranial and extracranial carotid atherosclerotic plaques and their relationships with recurrent stroke by using 3D multi-contrast magnetic resonance (MR) vessel wall imaging...
December 2, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27899132/cardiac-t1-mapping-and-extracellular-volume-ecv-in-clinical-practice-a-comprehensive-review
#11
REVIEW
Philip Haaf, Pankaj Garg, Daniel R Messroghli, David A Broadbent, John P Greenwood, Sven Plein
Cardiovascular Magnetic Resonance is increasingly used to differentiate the aetiology of cardiomyopathies. Late Gadolinium Enhancement (LGE) is the reference standard for non-invasive imaging of myocardial scar and focal fibrosis and is valuable in the differential diagnosis of ischaemic versus non-ischaemic cardiomyopathy. Diffuse fibrosis may go undetected on LGE imaging. Tissue characterisation with parametric mapping methods has the potential to detect and quantify both focal and diffuse alterations in myocardial structure not assessable by LGE...
November 30, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27890014/chagas-heart-disease-gender-differences-in-myocardial-damage-assessed-by-cardiovascular-magnetic-resonance
#12
Antonildes N Assunção, Michael Jerosch-Herold, Rodrigo L Melo, Alejandra V Mauricio, Liliane Rocha, Jorge A Torreão, Fabio Fernandes, Barbara M Ianni, Charles Mady, José A F Ramires, Roberto Kalil-Filho, Carlos E Rochitte
BACKGROUND: Since a male-related higher cardiovascular morbidity and mortality in patients with Chagas' heart disease has been reported, we aimed to investigate gender differences in myocardial damage assessed by cardiovascular magnetic resonance (CMR). METHODS AND RESULTS: Retrospectively, 62 seropositive Chagas' heart disease patients referred to CMR (1.5 T) and with low probability of having significant coronary artery disease were included in this analysis...
November 28, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27884152/use-of-self-gated-radial-cardiovascular-magnetic-resonance-to-detect-and-classify-arrhythmias-atrial-fibrillation-and-premature-ventricular-contraction
#13
Eve Piekarski, Teodora Chitiboi, Rebecca Ramb, Li Feng, Leon Axel
BACKGROUND: Arrhythmia can significantly alter the image quality of cardiovascular magnetic resonance (CMR); automatic detection and sorting of the most frequent types of arrhythmias during the CMR acquisition could potentially improve image quality. New CMR techniques, such as non-Cartesian CMR, can allow self-gating: from cardiac motion-related signal changes, we can detect cardiac cycles without an electrocardiogram. We can further use this data to obtain a surrogate for RR intervals (valley intervals: VV)...
November 25, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27876066/in-vivo-cardiovascular-magnetic-resonance-of-2d-vessel-wall-diffusion-anisotropy-in-carotid-arteries
#14
Peter Opriessnig, Harald Mangge, Rudolf Stollberger, Hannes Deutschmann, Gernot Reishofer
BACKGROUND: Diffusion weighted (DW) cardiovascular magnetic resonance (CMR) has shown great potential to discriminate between healthy and diseased vessel tissue by evaluating the apparent diffusion coefficient (ADC) along the arterial axis. Recently, ex vivo studies on porcine arteries utilizing diffusion tensor imaging (DTI) revealed a circumferential fiber orientation rather than an organization in axial direction, suggesting dominant diffusion perpendicular to the slice direction. In the present study, we propose a method to access tangential and radial diffusion of carotids in vivo by utilizing a pulse sequence that enables high resolution DW imaging in combination with a two-dimensional (2D) diffusion gradient direction sampling scheme perpendicular to the longitudinal axis of the artery...
November 23, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27866473/top-100-cited-articles-in-cardiovascular-magnetic-resonance-a-bibliometric-analysis
#15
REVIEW
Muhammad Shahzeb Khan, Waqas Ullah, Irbaz Bin Riaz, Nizar Bhulani, Warren J Manning, Srini Tridandapani, Faisal Khosa
BACKGROUND: With limited health care resources, bibliometric studies can help guide researchers and research funding agencies towards areas where reallocation or increase in research activity is warranted. Bibliometric analyses have been published in many specialties and sub-specialties but our literature search did not reveal a bibliometric analysis on Cardiovascular Magnetic Resonance (CMR). The main objective of the study was to identify the trends of the top 100 cited articles on CMR research...
November 21, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27855705/myocardial-t1-mapping-at-3t-using-saturation-recovery-reference-values-precision-and-comparison-with-molli
#16
Sebastian Weingärtner, Nadja M Meßner, Johannes Budjan, Dirk Loßnitzer, Uwe Mattler, Theano Papavassiliu, Frank G Zöllner, Lothar R Schad
BACKGROUND: Myocardial T1-mapping recently emerged as a promising quantitative method for non-invasive tissue characterization in numerous cardiomyopathies. Commonly performed with an inversion-recovery (IR) magnetization preparation at 1.5T, the application at 3T has gained due to increased quantification precision. Alternatively, saturation-recovery (SR) T1-mapping has recently been introduced at 1.5T for improved accuracy. Thus, the purpose of this study is to investigate the robustness and precision of SR T1-mapping at 3T and to establish accurate reference values for native T1-times and extracellular volume fraction (ECV) of healthy myocardium...
November 18, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27846845/relationship-between-native-papillary-muscle-t1-time-and-severity-of-functional-mitral-regurgitation-in-patients-with-non-ischemic-dilated-cardiomyopathy
#17
Shingo Kato, Shiro Nakamori, Sébastien Roujol, Francesca N Delling, Shadi Akhtari, Jihye Jang, Tamer Basha, Sophie Berg, Kraig V Kissinger, Beth Goddu, Warren J Manning, Reza Nezafat
BACKGROUND: Functional mitral regurgitation is one of the severe complications of non-ischemic dilated cardiomyopathy (DCM). Non-contrast native T1 mapping has emerged as a non-invasive method to evaluate myocardial fibrosis. We sought to evaluate the potential relationship between papillary muscle T1 time and mitral regurgitation in DCM patients. METHODS: Forty DCM patients (55 ± 13 years) and 20 healthy adult control subjects (54 ± 13 years) were studied...
November 16, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27846914/review-of-journal-of-cardiovascular-magnetic-resonance-2015
#18
REVIEW
D J Pennell, A J Baksi, S K Prasad, R H Mohiaddin, F Alpendurada, S V Babu-Narayan, J E Schneider, D N Firmin
There were 116 articles published in the Journal of Cardiovascular Magnetic Resonance (JCMR) in 2015, which is a 14 % increase on the 102 articles published in 2014. The quality of the submissions continues to increase. The 2015 JCMR Impact Factor (which is published in June 2016) rose to 5.75 from 4.72 for 2014 (as published in June 2015), which is the highest impact factor ever recorded for JCMR. The 2015 impact factor means that the JCMR papers that were published in 2013 and 2014 were cited on average 5...
November 15, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27839514/objective-criteria-for-septal-fibrosis-in-non-ischemic-dilated-cardiomyopathy-validation-for-the-prediction-of-future-cardiovascular-events
#19
Yoko Mikami, Aidan Cornhill, Bobak Heydari, Sebastien X Joncas, Fahad Almehmadi, Mohammed Zahrani, Mahmoud Bokhari, John Stirrat, Raymond Yee, Naeem Merchant, Carmen P Lydell, Andrew G Howarth, James A White
BACKGROUND: Expert subjective reporting of mid-wall septal fibrosis on late gadolinium enhancement (LGE) images has been shown to predict major cardiovascular outcomes in patients with non-ischemic dilated cardiomyopathy (NIDCM). This study aims to establish objective criteria for non-experts to report clinically relevant septal fibrosis and compare its performance by such readers versus experts for the prediction of cardiovascular events. METHODS: LGE cardiovascular magnetic resonance (CMR) was performed in 118 consecutive patients with NIDCM (mean age 57 ± 14, 42 % female) and the presence of septal fibrosis scored by expert readers...
November 14, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27832796/antecedent-hypertension-and-myocardial-injury-in-patients-with-reperfused-st-elevation-myocardial-infarction
#20
Sebastian J Reinstadler, Thomas Stiermaier, Charlotte Eitel, Mohammed Saad, Bernhard Metzler, Suzanne de Waha, Georg Fuernau, Steffen Desch, Holger Thiele, Ingo Eitel
BACKGROUND: Antecedent hypertension is associated with poor outcome in patients with ST-elevation myocardial infarction (STEMI). Whether differences in myocardial salvage, infarct size and microvascular injury contribute to the adverse outcome is unknown. We investigated the association between antecedent hypertension and cardiovascular magnetic resonance (CMR) parameters of myocardial salvage and damage in a multicenter CMR substudy of the AIDA-STEMI trial (Abciximab Intracoronary versus intravenously Drug Application in ST-elevation myocardial infarction)...
November 11, 2016: Journal of Cardiovascular Magnetic Resonance
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