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"Cardiac magnetic resonance"

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https://www.readbyqxmd.com/read/28649956/the-ati-score-age-thrombotic-burden-index-of-microcirculatory-resistance-determined-during-primary-percutaneous-coronary-intervention-predicts-final-infarct-size-in-patients-with-st-elevation-myocardial-infarction-a-cardiac-magnetic-resonance-validation-study
#1
Giovanni Luigi De Maria, Mohammad Alkhalil, Mathias Wolfrum, Gregor Fahrni, Alessandra Borlotti, Lisa Gaughran, Sam Dawkins, Jeremy Langrish, Andrew Lucking, Robin Choudhury, Italo Porto, Filippo Crea, Erica Dall'Armellina, Keith Channon, Rajesh Kharbanda, Adrian Banning
AIMS: The age-thrombus score-index of microcirculatory resistance (ATI) score is a diagnostic tool able to predict suboptimal myocardial reperfusion before stenting, in patients with ST elevation myocardial infarction (STEMI). We aimed to validate the ATI score against cardiac magnetic resonance imaging (cMRI). METHODS AND RESULTS: The ATI score was calculated prospectively in 80 STEMI patients. cMRI was performed within 48 hours in all patients and in 50 patients at six months follow up to assess the extent of infarct size (IS%) and microvascular obstruction (MVO%)...
June 27, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28648394/prevalence-correlates-and-prognostic-relevance-of-myocardial-mechanical-dispersion-as-assessed-by-feature-tracking-cardiac-magnetic-resonance-after-a-first-st-segment-elevation-myocardial-infarction
#2
Daniele Muser, Chiara Tioni, Ranjit Shah, Joseph B Selvanayagam, Gaetano Nucifora
Postinfarction mechanical dispersion (MD), that is, the regional heterogeneity of myocardial contraction throughout the cardiac cycle, has detrimental effects on left ventricular (LV) function and is related to the occurrence of heart failure and ventricular arrhythmias. However, its prevalence, pathophysiological determinants, and clinical utility are still unknown. The aim of the present study is to clarify these issues. In total, 130 consecutive patients (mean age 60 ± 12 years, 75% male) with a first ST-segment elevation myocardial infarction (STEMI) were included...
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28646567/severe-menses-associated-hypertension-successfully-treated-with-gonadotropin-releasing-hormone-agonist
#3
Luke J Laffin, Munnam S Jafar, George L Bakris
A case of a 32-year-old nulliparous white woman referred for a 5-year history of severe hypertension, hypokalemia, and resultant systolic dysfunction is presented. She additionally had a left ventricular ejection fraction of 30% including left ventricular dilation and normal left ventricular mass index, as measured by cardiac magnetic resonance imaging when she initially presented to us. Her history revealed that her severe hypertension episodes were monthly and would occur around the catamenial (menses-associated) time...
June 23, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28642098/quantifying-left-atrial-structure-and-function-using-single-plane-tissue-tracking-cardiac-magnetic-resonance
#4
Susumu Tao, Luisa A Ciuffo, Joao A C Lima, Katherine C Wu, Hiroshi Ashikaga
PURPOSE: Left atrial (LA) structure and function are important markers of adverse cardiovascular outcomes. Tissue-tracking cardiovascular magnetic resonance (CMR) accurately quantifies LA volume, strain, and strain rate based on biplane long-axis imaging. We aimed to assess the accuracy of the LA indices quantification from single-plane tissue-tracking CMR. METHODS: We included 162 patients (mean age 56±15, male 70%) from a prospective cohort study whose cine CMR images in sinus rhythm were available in both four-chamber and two-chamber views...
June 19, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28641397/myocardial-scar-location-as-detected-by-cardiac-magnetic-resonance-is-associated-with-the-outcome-in-heart-failure-patients-undergoing-surgical-ventricular-reconstruction
#5
Serenella Castelvecchio, Giulia Careri, Federico Ambrogi, Antonia Camporeale, Lorenzo Menicanti, Francesco Secchi, Massimo Lombardi
OBJECTIVES: Post-infarction myocardial scar causes adverse left ventricular remodelling and negatively affects the prognosis. We sought to investigate whether scar extent and location obtained by cardiac magnetic resonance may affect the reverse remodelling and survival of heart failure patients undergoing surgical ventricular reconstruction. METHODS: From January 2011 to December 2015, 151 consecutive patients with previous myocardial infarction and left ventricular remodelling underwent surgical ventricular reconstruction at our Institution, of which 88 (58%) patients had a preoperative protocol-standardized late gadolinium enhancement (LGE)-cardiac magnetic resonance examination during the week before surgery...
June 21, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28639972/imaging-in-repaired-tetralogy-of-fallot-with-a-focus-on-recent-advances-in-echocardiography
#6
Guillermo Larios, Mark K Friedberg
PURPOSE OF REVIEW: Imaging is essential for the management of adults with repaired tetralogy of Fallot (rToF). Echocardiography and cardiac magnetic resonance imaging are the central modalities to assess rToF. Here we review recent literature on imaging rToF, focusing on echocardiography and advances in assessment of cardiac mechanics. RECENT FINDINGS: Several two-dimensional, three-dimensional, and Doppler echo parameters have been proposed to assess pulmonary regurgitation, right ventricular volumes and ejection fraction, but most of them still have important limitations in their feasibility and reliability compared to cardiac magnetic resonance (CMR)...
July 20, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28639223/imaging-of-left-ventricular-hypertrophy-a-practical-utility-for-differential-diagnosis-and-assessment-of-disease-severity
#7
REVIEW
Toru Kubo, Hiroaki Kitaoka
PURPOSE OF REVIEW: Left ventricular hypertrophy (LVH) is often encountered in clinical practice, and it is a risk factor for cardiac mortality and morbidity. Determination of the etiology and disease severity is important for the management of patients with LVH. The aim of this review is to show the remarkable progress in cardiac imaging and its importance in clinical practice. RECENT FINDINGS: This review focuses on clinical features and characteristic cardiac imaging in LVH caused by various diseases including hypertension, aortic valve stenosis, hypertrophic cardiomyopathy, and secondary cardiomyopathies...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28638576/a-classic-case-of-arrhythmogenic-right-ventricular-cardiomyopathy-arvc-and-literature-review
#8
Htun Latt, Thein Tun Aung, Chanwit Roongsritong, David Smith
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a relatively under-recognized hereditary cardiomyopathy. It is characterized pathologically by fibro-fatty infiltration of right ventricular (RV) myocardium and clinically by consequences of RV electrical instability. Timely intervention with device therapy and pharmacotherapy may help reduce the risk of arrhythmic events or sudden cardiac death. Here, we describe a classic case of a young adult with ARVC and a brief literature review. The patient presented with exertional palpitations and ARVC was suspected after his routine electrocardiogram (EKG) revealed symmetric T wave inversions and possible epsilon waves in right precordial leads...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28637807/sudden-cardiac-death-substrate-imaged-by-magnetic-resonance-imaging-from-investigational-tool-to-clinical-applications
#9
Katherine C Wu
Sudden cardiac death (SCD) is a devastating event afflicting 350 000 Americans annually despite the availability of life-saving preventive therapy, the implantable cardioverter defibrillator. SCD prevention strategies are hampered by over-reliance on global left ventricular ejection fraction <35% as the most important criterion to determine implantable cardioverter defibrillator candidacy. Annually in the United States alone, this results in ≈130 000 implantable cardioverter defibrillator placements at a cost of >$3 billion but only a 5% incidence per year of appropriate firings...
July 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28634219/early-use-of-n-acetylcysteine-nac-with-nitrate-therapy-in-patients-undergoing-primary-percutaneous-coronary-intervention-for-st-segment-elevation-myocardial-infarction-reduces-myocardial-infarct-size-the-naciam-trial
#10
Sivabaskari Pasupathy, Rosanna Tavella, Suchi Grover, Betty Raman, Nathan E K Procter, Yang T Du, Gnanadevan Mahadavan, Irene Stafford, Tamila Heresztyn, Andrew Holmes, Christopher Zeitz, Margaret Arstall, Joseph B Selvanayagam, John D Horowitz, John F Beltrame
Background -Contemporary ST-elevation myocardial infarction (STEMI) management involves primary percutaneous coronary intervention (PCI) with on-going studies focusing on infarct size reduction utilizing ancillary therapies. N-acetylcysteine (NAC) is an antioxidant with reactive oxygen species scavenging properties that also potentiates the effects of nitroglycerin (NTG) and thus represents a potentially beneficial ancillary therapy in primary PCI. The NACIAM (NACIn Acute Myocardial infarction) trial examined the effects of NAC on infarct size in STEMI patients undergoing PCI...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28632653/imaging-adults-with-congenital-heart-disease-part-ii-advanced-cmr-techniques
#11
Anurag Sahu, Timothy C Slesnick
Because of great strides in medical care, survival into adulthood has become a common expectation in patients suffering from nearly all forms of congenital heart disease. As this aging population expands, the utilization of cardiac magnetic resonance imaging in their care continues to grow. Magnetic resonance technology has developed exponentially over the last 2 decades, and several advanced techniques for imaging adults with congenital heart disease have moved from the purely research arena into routine clinical care...
July 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28632652/utility-of-cardiac-magnetic-resonance-imaging-in-the-management-of-adult-congenital-heart-disease
#12
Giuseppe Muscogiuri, Aurelio Secinaro, Paolo Ciliberti, Megan Fuqua, Arni Nutting
The increasing number of patients with adult congenital heart disease (ACHD) calls for the development of noninvasive imaging techniques that allow a long-term evaluation of native and postsurgical anatomy and function. Echocardiography remains the imaging modality of choice for congenital heart disease, but it is affected by limited acoustic windows and poor tissue characterization. Cardiac computed tomography and cardiac catheter angiography are 2 valid alternatives for the anatomic and functional assessment of ACHD; however, both use ionizing radiation, and cardiac catheter angiography requires an invasive approach...
July 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28629628/left-ventricular-outflow-tract-obstruction-and-its-impact-on-systolic-ventricular-function-and-exercise-capacity-in-adults-with-a-subaortic-right-ventricle
#13
Annina Stauber, Céline Wey, Matthias Greutmann, Daniel Tobler, Kerstin Wustmann, Andreas Wahl, Emanuela R Valsangiacomo Buechel, Matthias Wilhelm, Markus Schwerzmann
BACKGROUND: In biventricular hearts the filling and contractility of one ventricle affects the performance of the other. In this study, we compared right ventricular systolic function and exercise capacity in patients with a subaortic right ventricle (RV) in relation to the presence of a left ventricular outflow tract obstruction (LVOTO). METHODS: Retrospective chart review of adults with congenitally corrected transposition of the great arteries (ccTGA) or with a previous atrial switch procedure for complete TGA (D-TGA)...
June 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28624409/emergence-of-integrated-cardiac-magnetic%C3%A2-resonance-positron-emission-tomography-imaging-as-the-preferred-imaging-modality-in-cardiac-sarcoidosis
#14
EDITORIAL
Thomas H Schindler
No abstract text is available yet for this article.
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28624408/native-t1-mapping-and-extracellular-volume-mapping-for-the-assessment-of-diffuse-myocardial-fibrosis-in-dilated%C3%A2-cardiomyopathy
#15
Shiro Nakamori, Kaoru Dohi, Masaki Ishida, Yoshitaka Goto, Kyoko Imanaka-Yoshida, Taku Omori, Itaru Goto, Naoto Kumagai, Naoki Fujimoto, Yasutaka Ichikawa, Kakuya Kitagawa, Norikazu Yamada, Hajime Sakuma, Masaaki Ito
OBJECTIVES: The purpose of this study was to examine the histological correlation of native myocardial T1 and extracellular volume fraction (ECV) measurement at 3-T for the assessment of diffuse pathological changes in the myocardial tissue, including myocardial fibrosis and extracellular space in dilated cardiomyopathy (DCM). BACKGROUND: Cardiac magnetic resonance T1 techniques allow the quantification of diffuse myocardial fibrosis. However, there are no definitive head-to-head studies of native T1 versus ECV for the detection, quantification, and characterization of pathological changes in the myocardial tissue in DCM by using histological samples for confirmation...
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28624398/prognostic-significance-of-remote-myocardium-alterations-assessed-by-quantitative-noncontrast-t1-mapping-in-st-segment-elevation-myocardial-infarction
#16
Sebastian J Reinstadler, Thomas Stiermaier, Johanna Liebetrau, Georg Fuernau, Charlotte Eitel, Suzanne de Waha, Steffen Desch, Jan-Christian Reil, Janine Pöss, Bernhard Metzler, Christian Lücke, Matthias Gutberlet, Gerhard Schuler, Holger Thiele, Ingo Eitel
OBJECTIVES: This study assessed the prognostic significance of remote zone native T1 alterations for the prediction of clinical events in a population with ST-segment elevation myocardial infarction (STEMI) who were treated by primary percutaneous coronary intervention (PPCI) and compared it with conventional markers of infarct severity. BACKGROUND: The exact role and incremental prognostic relevance of remote myocardium native T1 mapping alterations assessed by cardiac magnetic resonance (CMR) after STEMI remains unclear...
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28624396/hybrid-magnetic-resonance-imaging-and-positron-emission-tomography-with-fluorodeoxyglucose-to-diagnose-active-cardiac-sarcoidosis
#17
Marc R Dweck, Ronan Abgral, Maria Giovanna Trivieri, Philip M Robson, Nicolas Karakatsanis, Venkatesh Mani, Anna Palmisano, Marc A Miller, Anuradha Lala, Helena L Chang, Javier Sanz, Johanna Contreras, Jagat Narula, Valentin Fuster, Maria Padilla, Zahi A Fayad, Jason C Kovacic
OBJECTIVES: The purpose of this study was to explore the diagnostic usefulness of hybrid cardiac magnetic resonance (CMR) and positron emission tomography (PET) using 18F-fluorodeoxyglucose (FDG) for active cardiac sarcoidosis. BACKGROUND: Active cardiac sarcoidosis (aCS) is underdiagnosed and has a high mortality. METHODS: Patients with clinical suspicion of aCS underwent hybrid CMR/PET with late gadolinium enhancement (LGE) and FDG to assess the pattern of injury and disease activity, respectively...
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28624332/comparison-of-magnetic-resonance-feature-tracking-with-cspamm-harp-for-the-assessment-of-global-and-regional-layer-specific-strain
#18
Daniel L R Kuetting, Andreas Feisst, Darius Dabir, Rami Homsi, Alois M Sprinkart, Julian Luetkens, Hans H Schild, Daniel K Thomas
PURPOSE: Layer specific strain assessment is increasingly being employed clinically. Cardiac magnetic resonance (MR) Feature Tracking (FT) is considered to be an adequate alternative for strain assessment. The aim of this study is to investigate the feasibility of FT derived layer specific strain assessment. METHODS: CSPAMM and SSFP-Cine sequences were acquired in 38 individuals (19 patients with HFpEF, 19 controls) in identical midventricular short-axis locations...
June 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28624249/the-role-of-3-d-heart-models-in-planning-and-executing-interventional-procedures
#19
REVIEW
Elena K Grant, Laura J Olivieri
Percutaneous interventions aimed at addressing congenital and structural heart disease are simultaneously becoming more common and more complex as time progresses. An increasing number of heart defects that had previously required open heart surgery can now be successfully addressed in the cardiac catheterization laboratory. Adequate preprocedural preparation for these novel, complex procedures is critical to ensure their success. Diagnostic data can be collected before the intervention and displayed in multiple formats during the procedure...
February 24, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28624024/differentiation-between-acute-and-chronic-myocardial-infarction-by-means-of-texture-analysis-of-late-gadolinium-enhancement-and-cine-cardiac-magnetic-resonance-imaging
#20
Andrés Larroza, Andrzej Materka, María P López-Lereu, José V Monmeneu, Vicente Bodí, David Moratal
The purpose of this study was to differentiate acute from chronic myocardial infarction using machine learning techniques and texture features extracted from cardiac magnetic resonance imaging (MRI). The study group comprised 22 cases with acute myocardial infarction (AMI) and 22 cases with chronic myocardial infarction (CMI). Cine and late gadolinium enhancement (LGE) MRI were analyzed independently to differentiate AMI from CMI. A total of 279 texture features were extracted from predefined regions of interest (ROIs): the infarcted area on LGE MRI, and the entire myocardium on cine MRI...
July 2017: European Journal of Radiology
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