| Autor: |
Xiaohua, Chi, Feng, Liu, Guiping, Li, Quanshi, Wang, Zhifang, Deng |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Nan fang yi ke da xue xue bao = Journal of Southern Medical University. 34(2) |
| ISSN: |
1673-4254 |
| Popis: |
To investigate the shielding effect of distance in radioactive iodine treatment in patients with differentiated thyroid cancer (DTC).Eighty-seven DTC patients underwent postoperative radioactive iodine treatment at the therapeutic doses ranging from 2.96 GBq to 7.4 GBq. The patients were divided into two groups to receive high-dose therapy (≥3.7 GBq, 48 patients) and low-dose therapy (3.7 GBq, 39 patients). The radiation doses at 0.05 m, 1 m, and 3 m were recorded at different days; the doses at 1 m and 3 m on the third day, the dose of standard radioactivity source of 1.11GBq (131)I, and the natural background radioactivity were also recorded.The radiation dose at a 1-meter distance was significantly higher in the high-dose group than in the low-dose group (P0.05). The radiation doses in different dose groups at the other distances or at different time points showed no significant differences (P0.05). On the third day after therapy, the radiation dose at 1 m was significantly lower than the reference radioactivity source of 1.11 GBq (131)I (P=0.000), but still higher than the natural background radioactivity at 3 m (P=0.000).In DTC patients who receive radioactive iodine therapy, the radioactive radiation dose decreases rapidly after 3 days. The radioactive radiation dose on the third day is significantly lower than the reference radioactive radiation dose, so that the patients can be discharged with safety for contact at a distance beyond one meter. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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