A study of left ventricular function in normal persons and patients with old myocardial infarction with three dimensional echocardiography (3-DE)
Chen, B.J.; Huang, D.J.; Chen, R.F.
Zhonghua Nei Ke Za Zhi 32(7): 454-457
1993
ISSN/ISBN: 0578-1426 PMID: 8275823 Document Number: 408696
The accuracy of 3-DE in evaluating the volumes of left ventricule (LV) and volume changes in cardiac cycle was discussed. The LV volumes measured with 3-DE in porcine hearts is more closely to the real volumes directly measured (P > 0.05 r = 0.93). The EF value measured with radionuclide has higher correlation with that of 3-DE (r = 0.88) in patients. In a quantitative analysis of LV volume changes in cardiac cycles, we found that the decrease of EF in patients with old myocardial infarction (OMI) occurs mainly at the early stage and lasts to middle stage of systole in anterior myocardial infarction. Dysfunction of filling in OMI took place at the early and middle stages of diostole. Segmental shortening of LV was analysed quantitatively by percentage and pseudocolour mark. The reference values of 3DE in cardiac function were shown.