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- 저자 : 정충화(Chong Hwa Jung) (검색결과 1 건)
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새 방법에 의한 승모판협착중에서의 승모판구 면적측정에 관한 연구
배종화(Jong Hoa Bae),최철준(Chul Joon Choi),조정휘(Chung Whee Choue),김권삼(Kwon Sam Kim),김명식(Myung Shick Kim),송정상(Jung Sang Song),정충화(Chong Hwa Jung) 대한내과학회 1990 대한내과학회지 Vol.39 No.1
N/A A new formula (ED-MVA) was derived from the study of fluid dynamics, that the flow volume is proportional to orifice area, velocity of flow, and which shows period required by the flow. The mitral inflow volume can be obtained by estimating the stroke volume (SV) by Teichholz's method from M-mode echocardiogram of the left ventricle, and the mean diastolic velocity (MDV) and diastolic filling period (DFP) by mitral inflow continuous-wave Doppler echocardiogram, respectively. Therefore, the new Echo/Doppler method is MVA= SV/MDV×DFP. We compared this new method to other methods in 28 patients with severe mitral stenosis. The following results were obtained: 1) MVAs of 28 patients with mitral stenosis were determined as follows: Cath-MVA=0.967±0.289cm² 2DE-MVA=1.202±0.519 cm², PHT-MVA=1.006±0.364 cm², and ED-MVA=0.976±0.279cm² 2) ED-MVA of these 28 cases correlated well at a coefficient of 0.867 than with PHT-MVA (r=0.513) or 2DE-MVA (r=0.513) in comparison with Cath-MVA, 3) Excluding four patients with mitral regurgitation, the ED-MVA of 24 patients with isolated mitral stenosis showed a better correlation with r=0.944 than with PHT-MVA (r=0.642) or 2DE-MVA (r=0.637) in comparison with Cath-MVA. Therefore, new Echo/Doppler method was a useful noninvasive method in the estimation of mitral valve area with simplicity and accuracy.
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