[DSA parametric imaging--a research on organs blood flow perfusion].

Abstract

This was an animal experimental study about blood flow perfusion of the kidney, brain and lung with DSA parametric imaging. The authors set up a gradient stenotic vessel model for research of blood flow perfusion of the kidney and brain, and a model of balloon embolization for research of blood flow perfusion of the lung. The experiment indicated that these models can reflect exactly the quantitative changes of blood flow perfusion of organs. The parameter-"peak height" is a useful indicator reflecting the quantitative changes of regional blood flow, whereas both time parameters-Tmax and 1/2 Tmax are not sensitive ones. The authors suggested that the information obtained from this experiment could be used as the basis for DSA parametric imaging in human.