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In vivo measurement of ventricular geometry during fibrillation

Publication ,  Journal Article
Eason, J; Malkin, R; Gerber, B
Published in: Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
December 1, 1997

Both experimental and modeling studies have shown that ventricular geometry plays a role in the efficacy of defibrillation shocks. This study uses transthoracic echocardiography to measure the temporal changes in the geometry of the right ventricle (RV) during an episode of ventricular fibrillation (VF). The results show that the RV is characterized by a linear increase in short axis length and cross sectional area during the first 20 seconds of VF. Perimeter and long axis lengths showed no significant changes and a qualitative analysis of the left ventricle found no detectable geometric changes. These findings suggest that further study of changes in cardiac geometry and their effects on shock efficacy may be needed to fully understand the implications of this phenomena on catheter based defibrillation systems.

Duke Scholars

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

ISSN

0589-1019

Publication Date

December 1, 1997

Volume

1

Start / End Page

129 / 132
 

Citation

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Eason, J., Malkin, R., & Gerber, B. (1997). In vivo measurement of ventricular geometry during fibrillation. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, 1, 129–132.
Eason, J., R. Malkin, and B. Gerber. “In vivo measurement of ventricular geometry during fibrillation.” Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings 1 (December 1, 1997): 129–32.
Eason J, Malkin R, Gerber B. In vivo measurement of ventricular geometry during fibrillation. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1997 Dec 1;1:129–32.
Eason, J., et al. “In vivo measurement of ventricular geometry during fibrillation.” Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, vol. 1, Dec. 1997, pp. 129–32.
Eason J, Malkin R, Gerber B. In vivo measurement of ventricular geometry during fibrillation. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1997 Dec 1;1:129–132.

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

ISSN

0589-1019

Publication Date

December 1, 1997

Volume

1

Start / End Page

129 / 132