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01-03-2011 | Original Investigation

Location of flow axis line in the left ventricle and its interaction with local myocardial motion

Authors: Hiroyuki Nakajima, Shigeo Sugawara, Takeyoshi Kameyama, Haruna Tabuchi, Shigeo Ohtsuki, Motonao Tanaka, Yoshifumi Saijo

Published in: Journal of Echocardiography | Issue 1/2011

Abstract

Background

The interaction between local myocardial motion and blood flow dynamics should be assessed to evaluate left ventricular pump function.

Methods

The contour map of the absolute value of blood flow velocity in the left ventricle (LV) was drawn. The ridgeline of the contour was defined as the “flow axis line”. LV wall motion was assessed by the tracing endocardial border in consecutive B-mode images and by myocardial tissue velocity distribution obtained by the optical flow method.

Results

The location of the main flow axis line was affected by the local myocardial movement in the short axis direction. The flow axis line method is superior to the previous investigations on two-dimensional blood flow analysis because it considered three-dimensional blood flow.

Conclusions

The flow axis line represents not only intracardiac blood flow structure but also its interaction with the cardiac wall motion.

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Title: Location of flow axis line in the left ventricle and its interaction with local myocardial motion
Authors: Hiroyuki Nakajima
Shigeo Sugawara
Takeyoshi Kameyama
Haruna Tabuchi
Shigeo Ohtsuki
Motonao Tanaka
Yoshifumi Saijo
Publication date: 01-03-2011
Publisher: Springer Japan
Published in: Journal of Echocardiography / Issue 1/2011
Print ISSN: 1349-0222
Electronic ISSN: 1880-344X
DOI: https://doi.org/10.1007/s12574-010-0067-4

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Springer Medicine

Location of flow axis line in the left ventricle and its interaction with local myocardial motion

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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