埼玉医科大学雑誌

埼玉医科大学雑誌第30巻第1号 (2003年1月) 1-8頁 ◇論文(図表を含む全文)は，PDFファイルとなっています．

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原　著
組織カラードップラー法による前駆出期および拡張早期における左室局所心筋運動の評価とその有用性

中島　淑江
埼玉医科大学第二内科学教室〔平成14年11月8日受付〕

Utility and Assessment of Regional LV Function during Pre-ejection Contraction Period and Early Filling Period by Tissue Color Doppler Imaging Method
Yoshie Nakajima (Second Department of Internal Medicine, Moroyama, Iruma-gun, Saitama 350-0495, Japan)

　To evaluate regional LV function, regional pre-ejection contraction time (PECT), and pre-ejection contraction velocity (PECV) and early diastolic velocity (Emyo vel) were measured by M-mode tissue color Doppler in normal myocardium of 28 normal patients (pts), hypertrophic myocardium of 18 pts with hypertrophic cardiomyopathy and infarcted myocardium of 11 pts with myocardial infarction. Data were compared with global LV isovolumic contraction time (ICT) and early diastolic mitral flow velocity (Emv) measured by pulsed Doppler. PECT was significantly shorter than ICT in all patients. PECT was uniform in LV of the normal group. However,the mean PECT was shorter in hypertrophic myocardium, and longer in infarcted myocardium than that in normal myocardium. In both hypertrophic and infarcted myocardium, abnormalities of PECV and Emyo vel were detected easily while LV-ICT or Emv was within normal. M-mode tissue color Doppler methods are useful in distinguishing between normal, hypertrophic and infarcted myocardium more sensitively.
Keywords: tissue color Doppler, pre-ejection contraction time, asynchrony, regional LV function, regional myocardial velocity
J Saitama Med School 2003;30:1-8
(Received November 8, 2002)

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