Title: Left ventricular quantification with breath-hold MR imaging: comparison with echocardiography
Authors: Bogaert, Jan ×
Bosmans, Hilde
Rademakers, Frank
Bellon, Erwin
Herregods, Marie-Christine
Verschakelen, Johny
Van de Werf, Frans
Marchal, Guy #
Issue Date: Mar-1995
Series Title: Magma (New York, N.Y.) vol:3 issue:1 pages:5-12
Abstract: To evaluate the reproducibility of measurements of left ventricular (LV) dimensions, function, and myocardial mass, segmented k-space gradient-recalled-echo (GRE) magnetic resonance (MR) imaging was performed on two occasions on 12 healthy volunteers. To compare the MR data, all volunteers underwent a two-dimensional echocardiography with determination of LV dimensions and function. The left ventricle was imaged during breath-hold by consecutive, contiguous short-axis views at end-diastole and end-systole. An average of eight short-axis views was needed to encompass the whole left ventricle. This fast MR sequence limited the total acquisition time to 12 min. LV volumes and masses were calculated after manual delineation of epicardial and endocardial surfaces by two observers in a blinded fashion. Interstudy variability varied between 4.1% and 10.3% for LV end-diastolic volume and end-systolic volume, respectively. Differences in interobserver variability were smaller and varied between 3.6% and 7.3% for LV ejection fraction and end-diastolic volume, respectively. Intraobserver variabilities ranged between 2.0% and 7.0% for LV ejection fraction and end-systolic volume, respectively. These variability percentages agree very well with other studies in literature using other MR sequences. No significant differences in LV dimensions or function were found between MR imaging and echocardiography. In conclusion, this MR sequence allows fast and reproducible LV quantification.
ISSN: 0968-5243
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Radiology
Cardiovascular Imaging and Dynamics
Translational MRI (+)
× corresponding author
# (joint) last author

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