Kronholz H L, Glassmeier K H, Kentsch W
Rofo. 1983 Apr;138(4):444-6. doi: 10.1055/s-2008-1055758.
Using phantoms of children simulating a child of 6 month of age and another one aged 6 years, the authors measured the amount of radioexposure of the lens of the eye, the thyroid and of the gonads. The two computer tomographs Somatom SF and Tomoscan 300 under examination, produced radiodoses of comparable magnitudes. Both devices allow additional examination techniques of particularly high economy. It was found that in cranial CT the exposure of the lens to radiation is generally below 1 R if the orbitae are not situated in the plane of section. If a distance of 2-3 cm is maintained from the orbitae, the dose remains below 0.5 R. Protecting the gonads is meaningful in a 6-year-old boy, whereas covering-up of the thyroid reduced the dose only slightly.
作者使用模拟6个月大婴儿和6岁儿童的儿童体模，测量了眼睛晶状体、甲状腺和性腺的辐射暴露量。所检测的两台计算机断层扫描仪Somatom SF和Tomoscan 300产生的辐射剂量大小相当。这两种设备都允许采用特别经济的附加检查技术。结果发现，在头部CT检查中，如果眼眶不在扫描平面内，晶状体的辐射暴露通常低于1伦琴。如果与眼眶保持2 - 3厘米的距离，剂量仍低于0.5伦琴。对6岁男孩而言，保护性腺是有意义的，而遮盖甲状腺仅略微降低剂量。
