Akabani G, Poston J W
Nuclear Engineering Department, Texas A & M University, College Station 77843.
J Nucl Med. 1991 May;32(5):830-4.
At present, absorbed dose calculations for radionuclides in the human circulatory system used relatively simple models and are restricted in their applications. To determine absorbed doses to the blood and to the surface of the blood vessel wall, EGS4 Monte Carlo calculations were performed. Absorbed doses were calculated for the blood and the blood vessel wall (lumen) for different blood vessels sizes. The radionuclides chosen for this study were those commonly used in nuclear medicine. No penetration of the radionuclide into the blood vessel was assumed nor was cross fire between the vessel assumed. The results are useful in assessing the dose to blood and blood vessel walls for different nuclear medicine procedures.
目前，用于人体循环系统中放射性核素的吸收剂量计算采用相对简单的模型，且其应用受到限制。为了确定血液和血管壁表面的吸收剂量，进行了EGS4蒙特卡罗计算。针对不同血管尺寸，计算了血液和血管壁（管腔）的吸收剂量。本研究选用的放射性核素是核医学中常用的那些。假定放射性核素不会渗透到血管中，也不考虑血管之间的交叉照射。这些结果对于评估不同核医学程序对血液和血管壁的剂量很有用。
