Evaluation of cavitation in vivo is often based on recordings of high-pass filtered random high-frequency pressure fluctuations. We hypothesized that cavitation signal components are more appropriately assessed by a new method for extraction of random signal components of the pressure signals. We investigated three different valve types and found a high correlation between the two methods The new method showed that the cavitation signal could be extracted without a priori knowledge needed for setting the high-pass filter cut off frequency, nor did it introduce bandwidth limitation of the cavitation signal.
A New Method for Evaluation of Cavitation Near Mechanical Heart Valves
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division November 14, 2002; revision received April 17, 2003. Associate Editor: A. Yoganathan.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Johansen, P., Manning, K. B., Tarbell, J. M., Fontaine , A. A., Deutsch, S., and Nygaard, H. (October 9, 2003). "A New Method for Evaluation of Cavitation Near Mechanical Heart Valves ." ASME. J Biomech Eng. October 2003; 125(5): 663–670. https://doi.org/10.1115/1.1613297
Download citation file:
- Ris (Zotero)
- Reference Manager