Abstract
Radiocardiagrams are obtained by monitoring a radioisotope after injection as it passes through the heart and lungs. The purpose of this paper is to discuss several methods used to evaluate cardiac performance from radiocardiagram data. Mathematical models are developed for extracting two parameters of interest to cardiologists: cardiac chamber flow to volume ratio (F/V) and left ventricle ejection fraction (E.F.). The model used to characterize F/V is continuous and provides good agreement with data obtained by other physiological methods for the right heart. A discrete model is used to characterize the left heart and obtain E.F. Comparison has been made with other methods for obtaining E.F. for twelve patients with various types of cardiac disease. An important aspect of the E.F. model is that background interference is taken into consideration. The analyses include calculations of the statistical uncertainties associated with the computed values of both parameters.
Wolberg, J R;
[1]
Freedman, G S;
[2]
Dwyer, A
[3]
- Technion-Israel Inst. of Tech., Haifa
- Yale Univ., New Haven, Conn. (USA). School of Medicine
- St. Raphael Hospital, New Haven, Conn., U.S.A.
Citation Formats
Wolberg, J R, Freedman, G S, and Dwyer, A.
Analytical methods for quantitative evaluation of the radiocardiagram.
Israel: N. p.,
1975.
Web.
Wolberg, J R, Freedman, G S, & Dwyer, A.
Analytical methods for quantitative evaluation of the radiocardiagram.
Israel.
Wolberg, J R, Freedman, G S, and Dwyer, A.
1975.
"Analytical methods for quantitative evaluation of the radiocardiagram."
Israel.
@misc{etde_7312712,
title = {Analytical methods for quantitative evaluation of the radiocardiagram}
author = {Wolberg, J R, Freedman, G S, and Dwyer, A}
abstractNote = {Radiocardiagrams are obtained by monitoring a radioisotope after injection as it passes through the heart and lungs. The purpose of this paper is to discuss several methods used to evaluate cardiac performance from radiocardiagram data. Mathematical models are developed for extracting two parameters of interest to cardiologists: cardiac chamber flow to volume ratio (F/V) and left ventricle ejection fraction (E.F.). The model used to characterize F/V is continuous and provides good agreement with data obtained by other physiological methods for the right heart. A discrete model is used to characterize the left heart and obtain E.F. Comparison has been made with other methods for obtaining E.F. for twelve patients with various types of cardiac disease. An important aspect of the E.F. model is that background interference is taken into consideration. The analyses include calculations of the statistical uncertainties associated with the computed values of both parameters.}
journal = []
volume = {13:5}
journal type = {AC}
place = {Israel}
year = {1975}
month = {Jan}
}
title = {Analytical methods for quantitative evaluation of the radiocardiagram}
author = {Wolberg, J R, Freedman, G S, and Dwyer, A}
abstractNote = {Radiocardiagrams are obtained by monitoring a radioisotope after injection as it passes through the heart and lungs. The purpose of this paper is to discuss several methods used to evaluate cardiac performance from radiocardiagram data. Mathematical models are developed for extracting two parameters of interest to cardiologists: cardiac chamber flow to volume ratio (F/V) and left ventricle ejection fraction (E.F.). The model used to characterize F/V is continuous and provides good agreement with data obtained by other physiological methods for the right heart. A discrete model is used to characterize the left heart and obtain E.F. Comparison has been made with other methods for obtaining E.F. for twelve patients with various types of cardiac disease. An important aspect of the E.F. model is that background interference is taken into consideration. The analyses include calculations of the statistical uncertainties associated with the computed values of both parameters.}
journal = []
volume = {13:5}
journal type = {AC}
place = {Israel}
year = {1975}
month = {Jan}
}