Phantom testing of peripheral artery. Absolute blood flow measurement with digital arteriography.
A technique to measure absolute arterial blood flow in ml/min has been developed utilizing software programs with high-speed digital recording for the off-line analysis of intra-arterial injections of contrast medium. Measurements of pulsatile flow in a phantom for a physical flow model showed that calculations with the final upgrades were within 10% of known flow, using a recording rate of 30 frames/s, a diameter tubing of 5 mm, and flow rates of 300 to 400 ml/min. Quantitative absolute flow of a peripheral artery such as the internal carotid artery may be obtained during routine cerebral arteriography for comparison with anatomic data.
D000792:Angiography / Q000379:methods*; D001157:Arterial Occlusive Diseases / Q000503:physiopathology; D001158:Arteries / Q000502:physiology*; D001775:Blood Circulation; D002340:Carotid Artery Diseases / Q000503:physiopathology; D004395:Dye Dilution Technique; D006801:Humans; D008961:Models, Structural; D012984:Software