Title :
Automated analysis of contrast echocardiographic time-intensity curves to predict myocardial perfusion
Author :
Boyle, C. ; Saleh, R. ; Kemper, A. ; Nickerson, D. ; Parisi, A.
Author_Institution :
Veterans Adm. Med. Center, West Roxbury, MA, USA
Abstract :
It has been shown that the pattern of regional echocardiographic contrast enhancement bears a close relationship to regional perfusion. The authors describe a microcomputer-based method of analyzing circumferential and transmural myocardial echocardiographic contrast appearance and gray-level enhancement following microbubble injections. After digitizing the echocardiographic images, the pattern of contrast-intensity change in consecutive end-diastolic short-axis images of the left ventricle is determined for up to 32 circumferential regions and two myocardial layers. Parameters of the time-intensity curve for each circumferential myocardial region (such as appearance time, mean intensity, maximum intensity, and washout time) are being investigated as possible predictors of regional myocardial perfusion
Keywords :
acoustic imaging; cardiology; computerised picture processing; medical diagnostic computing; automated analysis; contrast echocardiographic time-intensity curves; gray-level enhancement; microbubble injections; microcomputer-based method; myocardial perfusion prediction; Biomedical imaging; Cardiology; Catheters; Data acquisition; Histograms; Image storage; Microcomputers; Myocardium; Time measurement; Video recording;
Conference_Titel :
Computers in Cardiology, 1988. Proceedings.
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-1949-X
DOI :
10.1109/CIC.1988.72599
