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Cardiovascular MRI

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240 papers 25 to 100 followers
By Jamie Jarmul Md / PhD student at UNC - Chapel Hill, PhD in Health Policy and Management
Dara L Kraitchman, Christopher M Kramer
No abstract text is available yet for this article.
May 9, 2016: JACC. Cardiovascular Interventions
Colin J Yi, Colin O Wu, Michael Tee, Chia-Ying Liu, Gustavo J Volpe, Martin R Prince, Gregory W Hundley, Antoinette S Gomes, Rob J van der Geest, Susan Heckbert, João A Lima, David A Bluemke
BACKGROUND: Risk scores for cardiovascular disease (CVD) are in common use to integrate multiple cardiovascular risk factors in order to identify individuals at greatest risk for disease. The purpose of this study was to determine if individuals at greater cardiovascular risk have T1 mapping indices by cardiovascular magnetic resonance (CMR) indicative of greater myocardial fibrosis. METHODS: CVD risk scores for 1208 subjects (men, 50.8%) ages 55-94 years old were evaluated in the Multiethnic Study of Atherosclerosis (MESA) at six centers...
February 12, 2015: Journal of Cardiovascular Magnetic Resonance
Malek M El Yaman, Jeffrey A Vos, Robert A Gustafson
MRI is a valuable noninvasive tool that helps in predicting the type of cardiac tumors and guiding management decisions. Several reports have described the appearance of cardiac fibromas on MRI, which typically show hyperenhancement on myocardial delayed enhancement (MDE) imaging, with or without a dark core. This report demonstrates the unique appearance of a large solitary ventricular septal cardiac fibroma in a 5-month-old patient on MDE imaging, with two discrete dark cores, each surrounded by a hyperenhancing pseudocapsule...
June 2015: Pediatric Cardiology
Seth Uretsky, Linda Gillam, Roberto Lang, Farooq A Chaudhry, Edgar Argulian, Azhar Supariwala, Srinivasa Gurram, Kavya Jain, Marjorie Subero, James J Jang, Randy Cohen, Steven D Wolff
BACKGROUND: The decision to undergo mitral valve surgery is often made on the basis of echocardiographic criteria and clinical assessment. Recent changes in treatment guidelines recommending surgery in asymptomatic patients make the accurate assessment of mitral regurgitation (MR) severity even more important. OBJECTIVES: The purpose of this study was to compare echocardiography and magnetic resonance imaging (MRI) in the assessment of MR severity using the degree of left ventricular (LV) remodeling after surgery as the reference standard...
March 24, 2015: Journal of the American College of Cardiology
Andrea Igoren Guaricci, Natale Daniele Brunetti, Martina Perazzolo Marra, Giuseppe Tarantini, Matteo di Biase, Gianluca Pontone
Cardiac magnetic resonance is considered the gold standard in the evaluation of morphology, function, viability and tissue characterization owing to its high spatial resolution and excellent signal-to-noise ratio. Its accuracy and reproducibility, also thanks to steady-state free precession sequences allowing superior blood-myocardium delineation, are ascertained. Its current indications in the field of ischemic heart disease are multiple and continuously evolving. This technology can provide information on myocardium at risk, infarcted myocardium, microvascular obstruction and intramyocardial haemorrhage...
October 2015: Journal of Cardiovascular Medicine
Christopher M Kramer
Noninvasive cardiovascular imaging is used on a daily basis to make crucial decisions regarding patient care. However, its rising use paralleled the doubling in Medicare spending on imaging services under the Part B physician fee schedule from 2000 to 2006, of which approximately one third was for..
April 2, 2015: New England Journal of Medicine
Nienke Duppen, Lianne M Geerdink, Irene M Kuipers, Sjoerd S M Bossers, Laurens P Koopman, Arie P J van Dijk, Jolien W Roos-Hesselink, Chris L De Korte, Willem A Helbing, Livia Kapusta
BACKGROUND: Public-health guidelines recommend patients with congenital heart disease to exercise. Studies have shown that patients with congenital heart disease can improve physical exercise capacity. The effect of training on regional ventricular performance has hardly been studied. We performed a pilot study to assess whether an exercise training program would result in adverse changes of regional ventricular performance in patients with corrected tetralogy of Fallot. METHODS AND RESULTS: Multicenter prospective randomized controlled pilot study in patients with tetralogy of Fallot aged 10 to 25 years...
April 2015: Circulation. Cardiovascular Imaging
Touko Kaasalainen, Sari Kivistö, Miia Holmström, Juha Peltonen, Sami Pakarinen, Helena Hänninen, Outi Sipilä
BACKGROUND: Magnetic resonance imaging (MRI) of pacemaker patients has become available despite of previous contraindications. However, pacing systems containing ferromagnetic material may hamper the diagnostic quality of cardiac MR (CMR) images. PURPOSE: To study methods for reducing susceptibility-based artifacts in CMR examinations of pacemaker patients. MATERIAL AND METHODS: Altogether 16 patients were scanned with 1.5T MRI scanner using cine balanced steady-state free-precession (bSSFP) and spoiled gradient echo (SPGR) sequences...
February 2016: Acta Radiologica
J K Lau, R W Sy, A Corbett, L Kritharides
UNLABELLED: Myotonic dystrophy (MD) is a multisystem, autosomal dominant disorder best known for its skeletal muscle manifestations. Cardiac manifestations arise as a result of myocardial fatty infiltration, degeneration and fibrosis and present most commonly as arrhythmias or conduction disturbances. Guidelines regarding the optimal cardiac management of patients with MD are lacking. The present article provides a summary of the pathophysiology of cardiac problems in patients with MD and provides a practical approach to contemporary cardiac monitoring and management of these patients with a focus on the prevention of complications related to conduction disturbances and arrhythmias...
April 1, 2015: International Journal of Cardiology
Nicholas S Burris, Michael D Hope
RATIONALE AND OBJECTIVES: Abnormal blood flow with bicuspid aortic valve (BAV) has been characterized with four-dimensional flow magnetic resonance imaging (MRI), but this approach is time consuming and requires technical expertise. We assess the relationship between different leaflets fusion patterns with BAV, eccentric systolic flow, and dilation patterns of the ascending aorta using two-dimensional (2D) phase-contrast (PC) MRI. MATERIALS AND METHODS: Fifty-nine patients with BAV who underwent cardiac MRI were identified; 47 had right-left (RL) aortic leaflet fusion and 12 had right-noncoronary (RN) fusion...
June 2015: Academic Radiology
Mark G Rabbat, David Wilber, Kevin Thomas, Owais Malick, Atif Bashir, Anoop Agrawal, Santanu Biswas, Thriveni Sanagala, Mushabbar A Syed
Left atrial size in atrial fibrillation is a strong predictor of successful ablation and cardiovascular events. Cardiac magnetic resonance multislice method (CMR-MSM) is the current gold standard for left atrial volume (LAV) assessment but is time consuming. We investigated whether LAV with more rapid area-length method by echocardiography (Echo-AL) or cardiac magnetic resonance (CMR-AL) and invasive measurement by 3D-CARTO mapping during ablation correlate with the CMR-MSM. We studied 250 consecutive patients prior to atrial fibrillation ablation...
June 2015: International Journal of Cardiovascular Imaging
Sophie Mavrogeni, Theodoros Dimitroulas, Sherine Gabriel, Petros P Sfikakis, Gerald M Pohost, George D Kitas
Rheumatoid arthritis (RA) is a multiorgan inflammatory disorder affecting approximately 1% of the population that leads to progressive joint destruction and disability. Patients with RA exhibit a high risk of cardiovascular disease, which results in premature morbidity and mortality and reduced life expectancy, when compared with the general population. Among various guises of myocardial involvement, heart failure (HF) has been recently recognized as an important contributory factor to the excess cardiovascular mortality associated with RA...
2014: Reviews in Cardiovascular Medicine
Se Jin Oh, Eun-Ah Park, Whal Lee, Ho Young Hwang, Ki-Bong Kim
BACKGROUND: Gadolinium-enhanced cardiac magnetic resonance (CMR) imaging suggests a low possibility of myocardial function improvement after revascularization if the transmural extent of late gadolinium enhancement (LGE) was over 50%. We evaluated myocardial wall motion in patients who underwent complete revascularization for left ventricular dysfunction. METHODS: Thirty-three patients with left ventricular dysfunction (ejection fraction ≤ 0.35) underwent complete revascularization...
May 2015: Annals of Thoracic Surgery
Camilla Calvieri, Gabriele Masselli, Riccardo Monti, Matteo Spreca, Gian Franco Gualdi, Francesco Fedele
Cardiovascular magnetic resonance (CMR) is a useful noninvasive technique for determining the presence of microvascular obstruction (MVO) and intramyocardial hemorrhage (IMH), frequently occurring in patients after reperfused myocardial infarction (MI). MVO, or the so-called no-reflow phenomenon, is associated with adverse ventricular remodeling and a poor prognosis during follow-up. Similarly, IMH is considered a severe damage after revascularization by percutaneous primary coronary intervention (PPCI) or fibrinolysis, which represents a worse prognosis...
2015: BioMed Research International
Subhanarayan Panda, Daljeet Kaur, Krishnamohan Lalukota, Gomathi Sundar, Behzad B Pavri, Calambur Narasimhan
BACKGROUND: Ventricular tachycardia (VT), a common manifestation of cardiac sarcoidosis (CS), is associated with high morbidity and mortality. It could be mistaken for idiopathic VT (IVT) in the absence of systemic manifestations and overt cardiac structural abnormality. We studied the electrocardiogram (ECG) characteristics of VT in CS that may distinguish from IVT and also explored the relationship of the ECG characteristics with imaging findings in patients with CS. METHODS AND RESULTS: Twelve-lead ECG characteristics of VT in CS patients (Group I = 37) were compared with IVT (Group II = 49)...
June 2015: Pacing and Clinical Electrophysiology: PACE
Ngoc-tram To, Gérard Haquin, Vincent de Montpreville, Jean-Francois Paul
No abstract text is available yet for this article.
March 10, 2015: Circulation
Asad Merchant, Ron Wald, Marc B Goldstein, Darren Yuen, Anish Kirpalani, Niki Dacouris, Joel G Ray, Mercedeh Kiaii, Jonathan Leipsic, Vamshi Kotha, Djeven Deva, Andrew T Yan
Hypertension is prevalent in patients with end-stage renal disease and is strongly associated with left ventricular hypertrophy (LVH), an independent predictor of cardiovascular mortality. Blood pressure (BP) monitoring in hemodialysis patients may be unreliable because of its lability and variability. We compared different methods of BP measurement and their relationship with LVH on cardiac magnetic resonance imaging. Sixty patients undergoing chronic hemodialysis at a single dialysis center had BP recorded at each dialysis session over 12 weeks: pre-dialysis, initial dialysis, nadir during dialysis, and post-dialysis...
April 2015: Journal of the American Society of Hypertension: JASH
Daniel A Morris, Daniela Blaschke, Alice Krebs, Sima Canaan-Kühl, Ursula Plöckinger, Gesine Knobloch, Thula C Walter, York Kühnle, Leif-Hendrik Boldt, Elisabeth Kraigher-Krainer, Burkert Pieske, Wilhelm Haverkamp
The purpose of this study was to analyze comprehensively the heart using modern and sensitive myocardial techniques in order to determine if structural or functional cardiac alterations are present in adult Pompe disease. Twelve patients with adult Pompe disease and a control group of 187 healthy subjects of similar age and gender were included. Structural and functional cardiac characteristics were analyzed by conventional and 2D speckle-tracking echocardiography. In addition, in a subgroup of adult Pompe patients, we analyzed the myocardial and musculoskeletal features by means of cardiac and whole-body muscle magnetic resonance imaging...
June 2015: International Journal of Cardiovascular Imaging
Colleen J Johnson, Jason D Roberts, Jameze H James, Kurt S Hoffmayer, Nitish Badhwar, Ivy A Ku, Susan Zhao, David M Naeger, Rajni K Rao, John W O'Connell, Teresa De Marco, Elias H Botvinick, Melvin M Scheinman
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heritable arrhythmia syndrome entailing a high risk of sudden cardiac death. Discernment from benign arrhythmia disorders, particularly right ventricular outflow tract ventricular tachycardia (RVOT VT), may be challenging, providing an impetus to explore alternative modalities that may facilitate evaluation of patients with suspected ARVC. OBJECTIVE: We evaluated the role of equilibrium radionuclide angiography (ERNA) as a diagnostic tool for ARVC...
June 2015: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Katarzyna Krupa, Monika Bekiesińska-Figatowska
Artifacts in magnetic resonance imaging and foreign bodies within the patient's body may be confused with a pathology or may reduce the quality of examinations. Radiologists are frequently not informed about the medical history of patients and face postoperative/other images they are not familiar with. A gallery of such images was presented in this manuscript. A truncation artifact in the spinal cord could be misinterpreted as a syrinx. Motion artifacts caused by breathing, cardiac movement, CSF pulsation/blood flow create a ghost artifact which can be reduced by patient immobilization, or cardiac/respiratory gating...
2015: Polish Journal of Radiology
2015-03-12 01:46:21
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