Evaluation of left ventricular ejection fraction by tissue locus imaging
The newly developed echocardiographic technique called “tissue locus imaging” (TLI) can visualize temporal series of images in a single picture by maintaining the display of previous images with a shading function; therefore, it can display the whole systolic shift of the mitral leaflets toward the...
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| Veröffentlicht in: | The American journal of cardiology 2004-07, Vol.94 (2), p.273-275 |
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| container_title | The American journal of cardiology |
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| creator | Natsugoe, Kumiko Otsuji, Yutaka Zhou, Xiaoyan Zhang, Hui Kisanuki, Akira Yoshifuku, Shiro Kumanohoso, Toshiro Yuge, Keiko Hamasaki, Shuichi Biro, Sadatoshi Minagoe, Shinichi Ochi, Masumi Tei, Chuwa |
| description | The newly developed echocardiographic technique called “tissue locus imaging” (TLI) can visualize temporal series of images in a single picture by maintaining the display of previous images with a shading function; therefore, it can display the whole systolic shift of the mitral leaflets toward the apex in a single picture and can potentially offer useful information on left ventricular (LV) function. In 36 consecutive patients with varying degrees of LV dysfunction (15 with coronary artery disease, 9 with cardiomyopathy, 3 with hypertension, 2 with aortic stenosis, 1 with aortic regurgitation, and 6 controls), the systolic shift of the mitral leaflets (X) by TLI showed a significant correlation with the LV ejection fraction (Y) by 2-dimensional echocardiography (
Y = 7.2 × +13 , r
2 = 0.83, p |
| doi_str_mv | 10.1016/j.amjcard.2004.03.085 |
| format | Article |
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2 = 0.83, p <0.01). 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| subjects | Adult Aged Biological and medical sciences Cardiology Cardiomyopathies - physiopathology Cardiovascular system Coronary Disease - physiopathology Echocardiography - methods Female Fractions Heart Humans Investigative techniques, diagnostic techniques (general aspects) Male Medical imaging Medical sciences Middle Aged Stroke Volume Tissues Ultrasonic investigative techniques Ventricular Function, Left |
| title | Evaluation of left ventricular ejection fraction by tissue locus imaging |
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