Assessment of changes in cardiac volumes following MitraClip™ implantation using cardiac magnetic resonance imaging
نویسندگان
چکیده
Results Minor device-related artifacts were observed, enabling reliable delineation of endocardial borders in all patients at FU. Figure 1) demonstrates typical device-related artifacts 6 month after implantation (A) in comparison with a corresponding pre-implantation image (B). Mean intraand inter-observer biases were 0.9±2.0 and 1.6 ±2.9 % for LV end-diastolic (LVEDV), 0.3±4.7 and 1.8 ±6.4 % for LV end systolic (LVESV), 0.1±2.9 and 2.2±3.7 % for RVEDV, 1.7±7.8 and 3.5±8.8 % for RVESV as well as 0.3±7.6 and 13.7±14.0 % for LA (LAV) volume indices at FU. No significant differences in intraor inter-observer biases were observed between BL and FU. LVEDV (127 (96-150) vs. 112 (86-150) ml/m; p=0.03) as well as LVESV (82 (54-91) vs. 69 (48-99) ml/m; p=0.03) indices significantly decreased from BL to FU. No significant difference was found for RVEDV (94 (75103) vs. 99 (77-123) ml/m; p=0.91), RVESV (48 (42-80) vs. 51 (40-81) ml/m; p=0.48) and LAV (87 (55-124) vs. 92 (48-137) ml/m; p=0.20) indices between BL and FU.
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Assessment of acute changes in biventricular volumes, systolic function and strain after MitraClipTM-implantation using magnetic resonance imaging and feature tracking
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