The known funcitons of liver are so numerous that the number of possible liver function tests is also very large.
However, several tests which seemed closely connected to histological findings and to mechanism of radioisotope utilization after liver irradiation were performed in experimental animals.
Kupffer cell function was able to study which was a special tests of radiology.
Amounts of some enzymes and dye were measured in serum as well as in the liver. Results of these tests including BSP, transaminase, Au-colloid and alkaline phosphatase were correlated well to radiation hyperemia or congestion in early stage, and degenerative changes in succeeding stage of irradiation.
As for the cell element, hepatic cell, Kupffer cell, epithel of : cholangiolus, and capillary seemed to be the target of each corresponding tests.