Noel A, Claudon M, Hoeffel J C, Aletti P, Lostette Y, Pernot C
Rofo. 1980 May;132(5):561-5. doi: 10.1055/s-2008-1056619.
Our study was made on 49 patients and we used capsules of lithium fluoride. The average fluoroscopy time was 32 min. and the average cinema film length was 76.5 metres. The relationship between the entry dose, the fluoroscopy time and the length of cinema film allowed us to calculate a fluoroscopy equivalent time (F.E.T) for each patient which was of 51 min. (32 min. + 76/4) as radiation dose of one minute fluoroscopy equal radiation dose of 4 metres of cinema film. The average heart dose was 0.70 X 10(-3) X FET (GY) or 70 mr/min. There was an absence of relation of the exit dosage to the diameter of the patient and a proportionality of the heart dose to the exit dose. Furthermore the maximum eye dose recorded was 200 mrads and the maximum gonadal dose was 350 mrads.
我们对49名患者进行了研究，并使用了氟化锂胶囊。平均透视时间为32分钟，平均电影胶片长度为76.5米。入射剂量、透视时间和电影胶片长度之间的关系使我们能够为每位患者计算出透视等效时间（F.E.T），其为51分钟（32分钟 + 76÷4），因为一分钟透视的辐射剂量等于4米电影胶片的辐射剂量。平均心脏剂量为0.70×10⁻³×FET（戈瑞）或70毫伦琴/分钟。出射剂量与患者直径无关，心脏剂量与出射剂量成比例。此外，记录到的最大眼部剂量为200毫拉德，最大性腺剂量为350毫拉德。
