Abstract
Regional myocardial blood flow in dogs was studied with a scintillation camera and two different data recording and processing systems: (a) videotape storage and a video scintillation counter, and (b) magnetic tape storage and a small computer system designed to operate with a scintillation camera. A tracer bolus of technetium serum albumin, pertechnetate ion, or xenon dissolved in normal saline was injected into a coronary artery to generate flow curves of four arbitrary myocardial areas. An experimental coronary embolism was produced. Detectable and apparently significant changes in regional blood flow have been produced in this manner.
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