1. A new approach for evaluation of left ventricular diastolic function: spatial and temporal analysis of left ventricular filling flow propagation by color M-mode Doppler echocardiography
- Author
-
Hiroya Takatsuji, Hisao Onozuka, Chika Takagi, Akira Kitabatake, Yasuhiro Makita, Kazushi Urasawa, H. Matsuo, Jun Ichi Teranishi, Taisei Mikami, and Hideo Kusuoka
- Subjects
medicine.medical_specialty ,Cardiac Catheterization ,Time Factors ,Diastole ,Doppler echocardiography ,Ventricular Function, Left ,Ventricular Dysfunction, Left ,Internal medicine ,Coronary Circulation ,medicine ,Humans ,Isovolumetric contraction ,Ejection fraction ,E/A ratio ,medicine.diagnostic_test ,business.industry ,Reproducibility of Results ,Stroke Volume ,Middle Aged ,Echocardiography, Doppler, Color ,medicine.anatomical_structure ,Flow velocity ,Ventricle ,Case-Control Studies ,Cardiology ,Ventricular pressure ,Feasibility Studies ,business ,Cardiology and Cardiovascular Medicine ,Blood Flow Velocity - Abstract
Objectives. To evaluate left ventricular diastolic function and differentiate the pseudonormalized transmitral flow pattern from the normal pattern, the propagation of left ventricular early filling flow was assessed quantitatively using color M-mode Doppler echocardiography. Background. Because the propagation of left ventricular early filling flow is disturbed in the left ventricle with impaired relaxation, quantification of such alterations should provide useful indexes for the evaluation of left ventricular diastolic function. Methods. Study subjects were classified into three groups according to the ratio of early to late transmitral flow velocity (E/A ratio) and left ventricular ejection fraction: 29 subjects with an ejection fraction ≥60% (control group); 34 with an ejection fraction
- Published
- 1996