Determination of renal plasma flow using the gamma scintillation camera.

An experimental technique has been devised to determine effective renal plasma flow, using the gamma scintillation camera. This involves a computer analysis of the first 3 min of the renal histogram and does not require serum or urine collections. This technique is not sufficiently accurate to provide an exact value of plasma flow, but it can be used to provide an approximate value and hence used as a screening tool.