Xenon-133 Clearance Method에 의한 皮膚 血流量 測定 = MEASUREMENT OF THE SKIN BLOOD FLOW USING LOCAL CLEARANCE METHOD BY XENON-133

다국어 초록 (Multilingual Abstract)

A study was made to determine the skin blood flow of various sites of the body using local clearance method of radioactive inert gas Xenon-133. Xenon-133 dissoved in saline was injected directly into the cutaneous tissue of the region to be operated upon.
The clearance curve was recorded continuously by collimated scintillation detector for 30 minutes immediately after injection. The clearance curves plotted semilogarithmically consisted of two expotential components, and the skin blood flow in this region was estimated from the clearance rate of the first component.
The first component of the clearance curve was found to reflect the skin blood flow, and the second component to reflect that of the cutaneous tissue. These findings were supported by sequential gamma camera images of Xenon-133 clearance.
The skin blood flow was measured from the first and second components of Xenon-133 clearance curve, and the following results were obtained.
1) A significant linear decrease of the skin blood flow was observed with increasing age in the deltoid region.
2) The skin blood flow of anterior chest wall was found significantly higher than the deltoid region. However, the skin blood flow of the dorsum of hand and foot were found significantly lower than the deltoid region.