A new method to estimate the volume ratio between  pulsatile blood and whole blood in a peripheral location by using a dye densitograph set with a plethysmograph.
D000328:Adult; D000375:Aging; D001776:Blood Circulation Time; D001810:Blood Volume; D001811:Blood Volume Determination / Q000379:methods*; D002302:Cardiac Output; D003097:Collateral Circulation; D003720:Densitometry / Q000379:methods; D004395:Dye Dilution Technique / Q000379:methods; D006331:Heart Diseases / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D010991:Plethysmography / Q000379:methods