Analysis of W1～W2 in wave intensity in carotid artery and left ventricular ejection time
10.3760/cma.j.Issn.1004-4477.2009.04.017
- VernacularTitle:瞬时波强颈动脉W1～W2与左心室射血时间的对比分析
- Author:
Husheng XIAO
;
Fang XU
;
Haoqiang YIN
;
Xin PENG
;
Zhizhang XU
;
Aihong ZHANG
;
Yajuan REN
;
Liangmei ZHOU
;
Qi WANG
;
Dongwen GAO
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Ventricular function,left;
Carotid artery,common,Wave intensity
- From:
Chinese Journal of Ultrasonography
2009;18(4):311-313
- CountryChina
- Language:Chinese
-
Abstract:
Objective To make certain about the phase of time from the culminated point of instantaneous accelerating wave intensity (W1) to that of instantaneous decelerating wave intensity (W2) wave intensity(WI) technique. Methods The ejection time of the curve of Doppler rate of flow in aortic opens and W1～W2 of common carotid arteries of both sides were detected in 66 healthy adults by Prosound α10 color Doppler ultrasound and the data were contrasted and analyzed. Results There were no statistical significances in the standardized value difference of ejection time of aorta and of time from starting point of W1 to culminated point of W2 in common carotid arteries of both sides (P>0.05). And there were all statistical significances in the standardized value difference of ejection time of aorta and of time in other groups (P<0. 001). Conclusions The ejection time is the time from starting point of W1 to culminated point of W2. The beginning of cardiac ejection should be the starting point of W1 curve,and the culminated point of W2 is the terminal time of ejection.
