Background :
@EN Color Doppler echocardiography is sensitive in detecting mitral regurgitation and useful in quantitating its severity. The presence of a eccentric regurgitant jet suggests that regurgitation is caused by prolapsing or flail leaflet of mitral
valve.
Until recently the derection of regurgitant jet in mitral valve prolapse has been examined in a single(parasternal short axis view) or orthogonal plane using color doppler echocardiography, and few in the apical rotation method of a transducer.
The
purpose of this study was to clarify the usefullness of the apical rotation method of a transducer in detection of the direction of mitral regurgitant jet and diagnosis of the sites of mitral valve prolapse.
@ES Methods :
@EN Twenty four patients(8 men and 16 women, mean age : 47.3±18.8 years) with mitral valve prolapse with eccentric regurgitant jet were examined by two-dimensional and color Doppler echocardiography using conventional parasternal long and short
axis
views, and four apical longitudinal planes(four chamber, vertical, two chamber and transverse views) obtained by the apical rotation method of a transducer.
@ES Results :
@EN Thirty one regurgitant jets were detected in twenty four patients, eighteen patients had anterior, nine patients posterior, and three patients bi-leaflet(anterior and posterior) prolapse. In eighteen patients with anterior leaflet prolapse,
ten
had
medial, eight had middle, three had lateral, ad three had two protions(two, medial and middle ; one, middle and lateral) prolapse. In nine patients with posterior leaflet prolapse, five had medial, three had middle, two had lateral, and one had
two(medial and middle) scallop prolapse.
@ES Conclusion :
@EN Color Doppler echocardiography by the apical rotation method of transducer is useful in assessment of the site of prolapse in patients with mitral valve prolapse with eccentric regurgitation.
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