Numerical analysis of blood flow in the left ventricle partially supported with a continuous flow pump

• Yano Tetsuya

• Sudo Seiichi

• Okamoto Eiji

• Mitamura Yoshinori

抄録

The ventricular thrombus has been reported as a major cause of thromboembolic complications during cardiac support with ventricular assist devices (VAD). In order to clarify the blood flow in the left ventricle (LV) supported with a continuous flow type VAD, we calculated the flow by means of computational fluid dynamics. In this study, the blood flow simulations were carried out taking the ventricular wall motion into consideration. The shape of a LV cavity was simplified and the computational model was constructed. The LV cavity shape was periodically deformed according to the equations expressing the LV wall motion. The influence of the type of VAD, LV ejection fraction (EF) and pump performance on the intracardiac flow pattern were investigated. The calculation results indicate that the major blood flow pattern differs according to the type of VAD. In the low EF condition, low flow speed region is formed around the aortic valve.

収録刊行物

• 生体医工学

  生体医工学 52 (Supplement), O-529-O-530, 2014

  公益社団法人 日本生体医工学会

詳細情報

• CRID: 1390282680243737344
• NII論文ID: 130004948243
• DOI: 10.11239/jsmbe.52.o-529
• ISSN: 18814379
• ISSN: 1347443X
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可