Dynamic radionuclide determination of regional left ventricular wall motion using a new digital imaging deviceIn 47 men with arteriographically defined coronary artery disease comparative studies of left ventricular ejection fraction and segmental wall motion were made with radionuclide data obtained from the image intensifier camera computer system and with contrast cineventriculography. The radionuclide data was digitized and the images corresponding to left ventricular end-diastole and end-systole were identified from the left ventricular time-activity curve. The left ventricular end-diastolic and end-systolic images were subtracted to form a silhouette difference image which described wall motion of the anterior and inferior left ventricular segments. The image intensifier camera allows manipulation of dynamically acquired radionuclide data because of the high count rate and consequently improved resolution of the left ventricular image.
Steele, P. (Veterans Administration Hospital Denver, CO, United States)
Kirch, D. (Veterans Administration Hospital Denver, CO, United States)
August 8, 2013
January 1, 1975
Publication: Soc. of Photo-Opt. Instrumentation Engrs. Cardiovascular Imaging and Image Processing
IDRelationTitle19770009742Analytic PrimaryCardiovascular Imaging and Image Processing: Theory and Practice - 1975