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- W2361736689 abstract "objictive: Background there are studies on time intervals in cardiac cycle have shown that some time index (the Tei and PEP) were proposed as potentially useful predictors of global cardiac function. But it is difficulty to simultaneously measure contraction and relaxation time intervals of left and right ventricle. Methods: To validate the use of velocity Doppler tissue imaging that measures lime intervals of the myocardial performance and to define the characteristics of these time intervals in normal subjects, we obtained and compared the right and left ventricular time intervals in 31 volunteers. From apical four - chamber view, time intervals were measured within the basal and mid parts of the interventricular septum, and the left and right free ventricular wall in same heart cycle. Results: in contraction, contraction, rapid ejection period, peak systolic velocity period are longer in right ventricle than in left ventricle (p 0. 01). The differences of ejection period and total systolic period in right ventricle than in left ventricle did not show statistically significant. In relaxation, isovolumic relaxation, diastasis are shorter in right ventricle than in left ventricle (p 0.01). But rapid inflow and atrial systole are longer in right ventricle than in left (p 0.01). The differences of total relaxation period between right ventricle and left ventricle did not show statistically significant. Conslusion: velocity Doppler tissue imaging is useful and accurate method to assessment time intervals in cardiac cycle." @default.
- W2361736689 created "2016-06-24" @default.
- W2361736689 creator A5057568615 @default.
- W2361736689 date "2005-01-01" @default.
- W2361736689 modified "2023-09-25" @default.
- W2361736689 title "Time intervals in systolic period of cardiac cycle assessment by velocity Doppler tissue imaging: Characteristic findings in normal subjects" @default.
- W2361736689 hasPublicationYear "2005" @default.
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