Comparative study of real time three dimensional transthoracic echocardiography and two dimensional transesophageal dchocardiography for preoperativly evaluating mitral valve prolapse
MA Ning
LI Zhi-an
Abstract：Objective To compare the accuracy of detecting prolapse site and raptured chorda with real time three dimensional transthoracic echocardiography (RT-3D-TIZ) and two dimensional multiplane transesophageal echocardiography (2D-TEE)in patients with mitral valve prolapse.Methods Consecutive ninety-six patients with severe mitral regurgitation due to mitral valve prolaps (MVP) were enrolled.RT-3D-ITE and 2D-TEE were used to diagnosis prolapse site and ruptured chorda 24 hours before operation.Based on surgical findings, sensitivity, specificity, and total consistent rate of RT-3D-TTE and 2D-TEE were calculated.Results Eleven patients were excluded for poor imaging quality of RT-3D-TTE.According to Carpentier's surgical nomenclature, 170 commissures and 510 scallops were studied.Among them, 108 sites had prolapse.Sensitivity, specificity, and total consistent rate for diagnosising prolapse site by RT-3D-TTE was 93%, 100%, 98.8% ; 2D-TEE was 91%, 100%, 98.5%.Sensitivity of diagnosising prolapse of every scallop with RT-3D-TTE was all higher that that with 2D-TEE.Sensitivity and specificity of the detection of ruptured chorda was 71% and 81% with RT-3D-TTE and was 91% and 89% with 2D-TEE.Conclusions RT-3D-TTE and 2D-TEE both have high sensitivity and specificity for diagnosis of prolapse site and detect ruptured chorda.RT-3D-TTE is superior to 2D-TEE in diagnosising prolapse located at commissure or bileaflets.However, 2D-TEE showes higher accuracy in detection ruptured chorda than RT-3D-TTE.
Keywords：Mitral valve diseaseReal time three dimensional transthoracic echocardiographyMultiplane transesophageal echocardiographyProlapseHeart valve repair
Publication Date：2010-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)