title: Left ventricular apical thin point viewed with two-dimensional echocardiography.
abstract: The aim of this study was to evaluate the usefulness of two-dimensional echocardiography in observing the left ventricular apical thin point (LVATP) and to view the change in thickness and width of the LVATP during the cardiac cycle. Transthoracic echocardiography was performed in 32 healthy adult volunteers to observe the LVATP in an apical three-chamber view. The width and thickness of the LVATP were measured at the end-diastole as well as at the end-systole. With two-dimensional echocardiography, the LVATP could be clearly shown. The width of the LVATP at the end-diastole and end-systole was 3.3 mm +/- 1.4 mm versus 0.9 mm+/-0.4 mm, P < 0.001; the thickness of the LVATP at the end-diastole and end-systole was 1.7 mm +/- 0.6 mm versus 1.8 mm +/- 0.8 mm, P > 0.05. The LVATP can be viewed with two-dimensional echocardiography; the LVATP changes significantly in width during the cardiac cycle, whereas the thickness of the LVATP changes insignificantly.
authors.affiliation: Department of Ultrasonography, Shengjing Hospital of China Medical University, Shenyang, China. baoshengguo@hotmail.com
authors.forename: Guo
authors.initials: G
authors.lastname: Baosheng
authors.forename: Yang
authors.initials: Y
authors.lastname: Jun
authors.forename: Yu
authors.initials: Y
authors.lastname: Xiaona
authors.forename: Han
authors.initials: H
authors.lastname: Bing
authors.forename: Zhang
authors.initials: Z
authors.lastname: Ying
authors.forename: Gao
authors.initials: G
authors.lastname: Shuxi
authors.forename: Luan
authors.initials: L
authors.lastname: Zhaoxia
authors.forename: Li
authors.initials: L
authors.lastname: Ying
authors.forename: Ren
authors.initials: R
authors.lastname: Weidong
authors.forename: Liu
authors.initials: L
authors.lastname: Shoujun
mesh_terms: D000328:Adult; D015150:Echocardiography, Doppler / Q000379:methods*; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity