Oxygen utilization of the human left ventricle - An indirect method for its evaluation and clinical considerationsAn analytical method is presented for determining the oxygen consumption rate of the intact heart working (as opposed to empty but beating) human left ventricle. Use is made of experimental recordings obtained for the chamber pressure and the associated dimensions of the LV. LV dimensions are determined by cineangiocardiography, and the chamber pressure is obtained by means of fluid-filled catheters during retrograde or transeptal catheterization. An analytical method incorporating these data is then employed for the evaluation of the LV coronary oxygen consumption in five subjects. Oxygen consumption for these subjects was also obtained by the conventional clinical method in order to evaluate the reliability of the proposed method.
Document ID
19740056892
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Ghista, D. N. (Indian Institute of Technology Madras, India)
Sandler, H. (NASA Ames Research Center Biomedical Research Div., Moffett Field; Stanford University, Palo Alto, Calif., United States)