Hufton A P
Br J Radiol. 1979 Sep;52(621):735-40. doi: 10.1259/0007-1285-52-621-735.
The mean dose to the fetus and fetal head, together with the doses to the fetal gonads and maternal gonads, have been estimated to be 107, 56, 131 and 136 mrad respectively for an obstetric prone oblique examination of the abdomen, using a rare-earth screen-film combination. The doses were derived by measuring skin doses on a series of women in late pregnancy undergoing the above examination and by using measured depth-dose information. The position of the fetus relative to the maternal skin surface was determined by ultrasonic scanning.
对于使用稀土增感屏 - 胶片组合进行的腹部产科俯卧斜位检查，估计胎儿、胎儿头部、胎儿性腺和母体性腺的平均剂量分别为107、56、131和136毫拉德。这些剂量是通过测量一系列晚期妊娠妇女在进行上述检查时的皮肤剂量，并使用测量的深度剂量信息得出的。胎儿相对于母体皮肤表面的位置通过超声扫描确定。
