Author + information
- Masaki Izumo,
- Eiji Kuwahara,
- Takeji Saitoh,
- Jun Tanaka,
- Yoko Fukuoka,
- Swaminatha V. Gurudevan,
- Robert J. Siegel and
- Takahiro Shiota
Color Doppler three–dimensional transesophageal echocardiography (3D TEE) provides a novel imaging technique to elucidate mitral regurgitant (MR) jet geometry. The aim of this study was to assess ischemic MR jet geometry using color Doppler 3D TEE.
We studied 65 pts with significant ischemic MR who underwent color Doppler 3D TEE. We also measured related mitral echocardiographic parameters.
MR jet geometry was classified into the following 3 categories: a curtain–like jet along almost the entire mitral leaflet coaptation (30 pts), a central jet from the central leaflet coaptation area (25 pts), and two separate jets (10 pts; Figure A–C). No difference in mitral annular area was found between the three groups. Pts with a central jet had smaller coaptation distance and tenting area at medial and lateral (all p<0.01) than those with a curtain–like jet, whereas no differences in these parameters at central area between the two groups. Compared to pts without two separate jets, those with two separate jets had similar coaptation distance and tenting area. However, pts with two separate jets had greater coaptation length (overlap length of the anterior and posterior leaflet) at the central area than those with a curtain–like jet and a central jet (4.5±0.5 vs. 3.6±1.1, 4.5±0.5 vs. 3.4±0.7 mm, respectively, both p<0.001).
Color Doppler 3D TEE demonstrates different geometries of ischemic MR jet, which are caused by different mitral leaflet morphological abnormalities.
Moderated Poster Contributions
Poster Sessions, Expo North
Saturday, March 09, 2013, 10:00 a.m.–10:45 a.m.
Session Title: Valvular Heart Disease: Clinical II – Mitral Valve
Abstract Category: 31. Valvular Heart Disease: Clinical
Presentation Number: 1112M–83
- 2013 American College of Cardiology Foundation