Association between ventricular filling patterns and the extent of late enhancement on magnetic resonance imaging in patients with hypertrophic cardiomyopathy

2017 ◽  
Vol 59 (1) ◽  
pp. 56-63
Author(s):  
M. De Zan ◽  
P. Carrascosa ◽  
A. Deviggiano ◽  
C. Capunay ◽  
G.A. Rodríguez-Granillo
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hypertrophic Cardiomyopathy ◽  
Magnetic Resonance ◽  
Late Enhancement ◽  
Resonance Imaging ◽  
Ventricular Filling

Deformation Measurements by Echocardiography versus Late Enhancement Magnetic Resonance Imaging in Patients with Coronary Artery Disease

2012 ◽  
Vol 8 (2) ◽  
pp. 101
Author(s):  
Brage H Amundsen ◽  
Anders Thorstensen ◽  
Asbjørn Støylen ◽  
◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Magnetic Resonance ◽  
Late Enhancement ◽  
High Temporal Resolution ◽  
Resonance Imaging ◽  
Deformation Imaging ◽  
Artery Disease ◽  
Deformation Measurements

The aim of this article is to discuss the present and future potential of deformation imaging by echocardiography and scar visualisation by magnetic resonance imaging (MRI) in patients with coronary artery disease (CAD). The two methods are clearly different: one is concerned with function, the other with morphology. Echocardiography, with its versatility of methods and high applicability, will continue to be the workhorse in cardiac imaging of patients with CAD. Important additional information can be extracted from deformation imaging methods, especially due to the high temporal resolution in tissue Doppler. Deformation measurements in 3D images are still limited by their lower resolution compared with 2D but will continue to improve. The standardisation of image analysis and the collaboration within the echocardiographic community to conduct larger studies will be important tasks in the attempt to establish evidence for the new methods. Late enhancement MRI is a method with unique properties and will continue to be an important alternative in selected patients and settings, as well as an invaluable research tool.

P613Cardiac magnetic resonance imaging derived left ventricular mechanical function in patients with atrial fibrillation and left atrial low voltage zones

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
S Ulbrich ◽  
R S Schoenbauer ◽  
B Kirstein ◽  
J Tomala ◽  
Y Huo ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Atrial Fibrillation ◽  
Magnetic Resonance ◽  
Stroke Volume ◽  
Left Atrial ◽  
Low Voltage ◽  
Left Ventricular ◽  
Left Ventricular Stroke Volume ◽  
Resonance Imaging ◽  
Ventricular Filling

Abstract Background The relation of left atrial low voltage zones (LVZ) to left ventricular function in patients undergoing pulmonary vein isolation (PVI) is not known. Objective To explore the relationship of left atrial low voltage zones (LVZ) on left ventricular function in patients with atrial fibrillation. Methods From June to Nov. 2018, 107 (mean age 67y, 70 men, 73 persistent AF) consecutive patients with symptomatic AF underwent a PVI with LVZ mapping. Before PVI the left ventricular ejection fraction (EF) and stroke volume (SV) were measured by cardiac magnetic resonance imaging (CMR). From feature-tracking of CMR-cine images left ventricular global, systolic and diastolic longitudinal strains (GLS), circumferential strains (GCS) and radial strains (GRS) were calculated. Results Of 59 patients CMR scanning in sinus rhythm was performed, LVZ were present in 24 patients. LVEF was significantly lower in patients with left atrial LVZ (62±9% vs. 55±15%) (p=0,03). Left ventricular stroke volume was significantly decreased by the extent of LVZ (94±23 vs. 72±21ml), (p=0,03). The left ventricular diastolic strains during ventricular filling (caused by atrial contraction) of GLS (r=−0,52), GCS (r=−0,65) and GRS (r=−0,65) were highly signifcantly correlated to the occurence and extent of LVZ (each p<0,001 respectively). The only systolic ventricular strain was GLS, which decreased (r=−0,3, p=0,03) by the occurance of atrial low voltage. Conclusion The active, atrial part of diastolic left ventricular filling properties is impaired by the occurrence and extent of left atrial LVZ. In patients with left atrial LVZ the left ventricular stroke volume and ejection fraction is decreased already in sinus rhythm. It seems possible that atrial mechanical dysfunction and presence of atrial low voltage maybe predicted by LV diastolic strain analysis.

scholarly journals Semiotics of apical hypertrophic cardiomyopathy in magnetic resonance Imaging

2020 ◽  
Vol 19 (2) ◽  
pp. 18-23
Author(s):  
I. E. Obramenko
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hypertrophic Cardiomyopathy ◽  
Magnetic Resonance ◽  
Left Ventricle ◽  
Heart Diseases ◽  
Fibrous Tissue ◽  
Left Ventricular ◽  
Left Ventricular Cavity ◽  
Resonance Imaging ◽  
Apical Hypertrophic Cardiomyopathy

Introduction. About 0.2 % of the adult population all over the world suffers from hypertrophic cardiomyopathy. Early and timely diagnosis of the apical form of hypertrophic cardiomyopathy remains an urgent medical problem, since the disease has a wide variability of clinical manifestations and often occurs asymptomatic or with symptoms of other heart diseases. Magnetic resonance imaging is an informative method of radiation diagnosis of hypertrophic cardiomyopathy. The aim is improving of radiology diagnostics in applying to the apical form of hypertrophic cardiomyopathy. Materials and methods. 98 patients with apical hypertrophic cardiomyopathy aged 19 to 76 years were еxamined. There were 48 men and 50 women. All subjects were examined by a cardiologist, all patients underwent electrocardiography and echocardiography, 45 patients underwent magnetic resonance imaging (MRI) of the heart. Results. In our study 13 patients had MRI determined the isolated form of apical form of hypertrophic cardiomyopathy, 32 had combined one. 42.2% of the patients with symmetrical hypertrophy of all apical segments had sawtoothed configuration of the LV revealed by MRI. The symptom of left ventricular cavity obliteration was determined in 19 patients. The symptom of LV cavity sequestration was determined in 5 subjects. 5 patients had an aneurysm on the top of the left ventricle, 1 – on the top of the right ventricle. Signs of left ventricular outflow tract obstruction were visualized in 2 patients, intraventricular obstruction at the level of the middle segments of the left ventricle was determined in 5 cases. Akinesis and hypokinesis were detected in areas of fibrous changes (n=21) or in areas of cardiosclerosis (n=2). In 17.8 % of subjects identified non-compacted myocardium, in 3 cases it was combined with apical form of hypertrophic cardiomyopathy. With contrast enhancement in 29 patients, foci (n=22) or zones (n=7) of pathological accumulation of contrast agent were determined, which indicated the replacement of myocardium with fibrous tissue.

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