イヤーピースによる非採血的Indocyanine green testに関する研究
1967 年 64 巻 2 号 p. 108-112
詳細
1967 年 64 巻 2 号 p. 108-112
In order o simplify the Indocyanine green test, dye densitometry was applied to Indocyanine green test.The equipments used in this method were made in Japan.
Procedure of the test was as follows;
After the equipments were warming up for 20 min. earpiece placed on conch. Indocyanine green of 0.25mg per kilogram was injected into cubital vein for 1min. The concentration curve recorded in roll chart in speed of 2.5mm per second was analyzed. The curve was divided two phases, peak phase and declining phase. It is clear that the peak phase indicated the one for mixing of the dye, while the declining phase for dye excretion. Dereasing ratio was defined as ratio of value in 1min. after finish of injection to that of 6 min.
In 50 patients with or without liver disease the decreasing ratio was compared with disappearance rate, K, which was described previously. There was a higher correlation between the decreasing ratio and eisappearance rate. From these results it seems reasonable to conclude that Indocyanine green test with earpiecedensitometry is a good and simple test and generally earpiece method may be a new laboratory test in near future.
