Wu C C, Chen M F, Lin C C
Department of Nuclear Medicine, Tainan Municipal Hospital, Kaohsiung, Taiwan.
Am J Chin Med. 1994;22(2):111-8. doi: 10.1142/S0192415X94000140.
SC-RNV, a new method of radionuclide venography by subcutaneous injection of Tc-99m pertechnetate at acupuncture points K-3 (Taixi), was developed in our laboratory. To further investigate whether K-3 is the best point for SC-RNV, Tc-99m pertechnetate was subcutaneously injected at K-3 on one foot and at one of the 11 other acupuncture points (APs) or 3 nonacupuncture points (NAPs) on the opposite foot, simultaneously, in 157 subjects without evidence of venous disorder. The absorption of radioisotopes from each injection site was evaluated by analyzing the time-activity curve at a region of interest set upon over the lower leg above the injection site. The results revealed that the absorption of radioisotopes via K-3 (Taixi) was better than that via NAPs, evidenced by higher peak activity and greater absorption rate. However, there was no significant difference between K-3 injection and other APs injections except Liv-2 and Liv-3. These results indicate that absorption of radioisotopes via APs is better than via NAPs. This together with the fact that K-3 is easier to detect than other APs in feet, suggests that K-3 is a good point for SC-RNV.
我们实验室研发了一种新的放射性核素静脉造影方法——经皮下穴位注射锝-99m高锝酸盐的穴位放射性核素静脉造影（SC-RNV）。为进一步探究三阴交穴是否是进行SC-RNV的最佳穴位，在157例无静脉疾病迹象的受试者中，将锝-99m高锝酸盐同时分别皮下注射于一侧足部的三阴交穴以及另一侧足部的11个其他穴位之一或3个非穴位点。通过分析注射部位上方小腿区域的时间-活性曲线来评估每个注射部位放射性同位素的吸收情况。结果显示，与非穴位点相比，经三阴交穴注射放射性同位素的吸收情况更好，表现为峰值活性更高和吸收率更高。然而，除了太冲穴和行间穴外，三阴交穴注射与其他穴位注射之间没有显著差异。这些结果表明，经穴位注射放射性同位素的吸收情况优于经非穴位点注射。再加上三阴交穴比足部其他穴位更容易定位，这表明三阴交穴是进行SC-RNV的一个理想穴位。
