Understanding cardiac blood flow patterns is important in the assessment of cardiovascular function. Three-dimensional flow and relative pressure fields within the human left ventricle are demonstrated by combining velocity measurements with computational fluid mechanics methods. The velocity field throughout the left atrium and ventricle of a normal human heart is measured using time-resolved three-dimensional phase-contrast MRI. Subsequently, the time-resolved three-dimensional relative pressure is calculated from this velocity field using the pressure Poisson equation. Noninvasive simultaneous assessment of cardiac pressure and flow phenomena is an important new tool for studying cardiac fluid dynamics.
Noninvasive Measurement of Time-Varying Three-Dimensional Relative Pressure Fields Within the Human Heart
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division August 16, 2001; revised manuscript received January 24, 2002. Associate Editor: A. P. Yoganathan.
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Ebbers, T., Wigstro¨m , L., Bolger, A. F., Wranne, B., and Karlsson, M. (May 21, 2002). "Noninvasive Measurement of Time-Varying Three-Dimensional Relative Pressure Fields Within the Human Heart ." ASME. J Biomech Eng. June 2002; 124(3): 288–293. https://doi.org/10.1115/1.1468866
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