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Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume

Journal Article:

Abstract

This study was undertaken to assess the ability of cine MR imaging to evaluate the direction, timing, and severity of mitral regurgitation in patients with mitral valve prolapse (MVP). The population of this study was 33 patients with MVP diagnosed by two-dimensional echocardiography and 10 patients with rheumatic mitral valve disease (MSR) for comparison. 7 patients with MVP and 5 with MSR had atrial fibrillation and/or history of congestive heart failure as complications. Mitral regurgitation was graded for severity by color Doppler flow imaging in all patients. Direction and size of systolic flow void in the left atrium were analyzed by contiguous multilevel cine MR images and the maximum volumes of flow void and left atrium were measured. Although flow void was found at the center of the left atrium in most of MSR, it was often directed along the postero-caudal atrial wall in anterior leaflet prolapse and along the anterocranial atrial wall in posterior leaflet prolapse. In MVP, the maximum volume of flow void was often seen in late systole. The maximum volume of flow void and that of left atrium were significantly larger in patients with atrial fibrillation and/or history of congestive heart failure. The length and volume  More>>
Authors:
Kumai, Toshihiko [1] 
  1. Chiba Univ. (Japan). School of Medicine
Publication Date:
Feb 01, 1993
Product Type:
Journal Article
Reference Number:
JPN-93-005211; EDB-93-086057
Resource Relation:
Journal Name: Nippon Jiki Kyomei Igakkai Zasshi (Japanese Journal of Magnetic Resonance in Medicine); (Japan); Journal Volume: 13:1
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; HEART; NMR IMAGING; BLOOD FLOW; CARDIOVASCULAR DISEASES; CINEMATOGRAPHY; DOPPLER EFFECT; ELECTROCARDIOGRAMS; PATIENTS; RHEUMATIC DISEASES; VASOCONSTRICTION; BODY; CARDIOVASCULAR SYSTEM; DIAGNOSTIC TECHNIQUES; DIAGRAMS; DISEASES; ORGANS; PHOTOGRAPHY; SKELETAL DISEASES; 550602* - Medicine- External Radiation in Diagnostics- (1980-)
OSTI ID:
6433435
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0914-9457; CODEN: NJKZEV
Submitting Site:
JPN
Size:
Pages: 23-32
Announcement Date:

Journal Article:

Citation Formats

Kumai, Toshihiko. Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume. Japan: N. p., 1993. Web.
Kumai, Toshihiko. Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume. Japan.
Kumai, Toshihiko. 1993. "Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume." Japan.
@misc{etde_6433435,
title = {Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume}
author = {Kumai, Toshihiko}
abstractNote = {This study was undertaken to assess the ability of cine MR imaging to evaluate the direction, timing, and severity of mitral regurgitation in patients with mitral valve prolapse (MVP). The population of this study was 33 patients with MVP diagnosed by two-dimensional echocardiography and 10 patients with rheumatic mitral valve disease (MSR) for comparison. 7 patients with MVP and 5 with MSR had atrial fibrillation and/or history of congestive heart failure as complications. Mitral regurgitation was graded for severity by color Doppler flow imaging in all patients. Direction and size of systolic flow void in the left atrium were analyzed by contiguous multilevel cine MR images and the maximum volumes of flow void and left atrium were measured. Although flow void was found at the center of the left atrium in most of MSR, it was often directed along the postero-caudal atrial wall in anterior leaflet prolapse and along the anterocranial atrial wall in posterior leaflet prolapse. In MVP, the maximum volume of flow void was often seen in late systole. The maximum volume of flow void and that of left atrium were significantly larger in patients with atrial fibrillation and/or history of congestive heart failure. The length and volume of flow void were increased with clinical severity and degree of regurgitation determined by color Doppler flow imaging. Thus cine MR imaging provides a useful means for detection and semiquantitative evaluation of mitral regurgitation in subjects with MVP. (author).}
journal = {Nippon Jiki Kyomei Igakkai Zasshi (Japanese Journal of Magnetic Resonance in Medicine); (Japan)}
volume = {13:1}
journal type = {AC}
place = {Japan}
year = {1993}
month = {Feb}
}