Realistic three-dimensional left ventricular ejection determined from computational fluid dynamics

Tad W. Taylor, Haruka Okino, Takami Yamaguchi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A realistic model of the left ventricle of the heart was constructed using a cast from a dog heart which was in diastole. A coordinate measuring machine was used to measure and digitize the coordinates of the left ventricle. From the complex measured left ventricle shape values, a three dimensional finite volume representation was constructed using a simulation package. The left ventricular walls moved towards the center of the aortic outlet in order to study the effects of time varying left ventricular ejection. The left ventricular wall motion was assumed to follow the blood flow and the wall grid was reformed 25 times during the calculation. The 25.8 cc ventricular volume was reduced to 75% in 0.25 seconds. Centerline and cross-sectional velocity vectors greatly increased in magnitude at the aortic outlet, and most of the pressure occurred in the top 15% of the heart. The computational method should make is possible to compare simulation results with important measurement techniques such as ultrasound and magnetic resonance imaging and this should allow a finer detail of flow understanding than is presently available using either a modeling or imaging method alone.

本文言語English
ホスト出版物のタイトルAdvances in Bioengineering
編集者John M. Tarbell
出版社Publ by ASME
ページ119-122
ページ数4
ISBN(印刷版)0791810313
出版ステータスPublished - 1993
外部発表はい
イベントProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
継続期間: 1993 11月 281993 12月 3

出版物シリーズ

名前American Society of Mechanical Engineers, Bioengineering Division (Publication) BED
26

Other

OtherProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA
Period93/11/2893/12/3

ASJC Scopus subject areas

  • 工学(全般)

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