Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1383
8
1
gregorian
2004
11
1
18
3
online
1
fulltext
en
RADIOACTIVE DISCHARGE FROM PATIENTS WITH THYROID CANCER UNDER 131I TREATMENT AND ITS SAFE DISPOSAL TO PUBLIC DRAINAGE
Medical Physics and Radiation Therapy
Medical Physics and Radiation Therapy
Original Research: Basic Science in Medicine
Original Research: Basic Science in Medicine
The treatment of thyroid cancer using an unsealed source of radioactive materials
is usually associated with a large amount of 131I. A major problem for hospital admission
of these patients is the waste disposal which requires protection of the public.
152 patients with thyroid cancer admitted to the nuclear medicine department of
Said AI- Shohada Hospital for UI I treatment were studied. 1311 excreted from these
patients during isolation was calculated. Exposure from patients were measured using
a Victorian 190F survey dosimeter.
More than 70 percent of the administered 131I was excreted after 24 hours, 90
percent after 48 hours and 96 percent after 72 hours of isolation. The mean biological
half life of 1311 in patients with thyroid cancer was found to be 13.9±1.9 hours. There
was no significant difference between the mean effective half life in the patients related
for the first time and second time at 95 percent significance level.
The results of this study showed that the difference in the discharge rate of 1311
from patients with thyroid cancer receiving first and second treatment was not significant.
The mean discharge rate after the first 24 hours was more than 70%, and it was
more than 96% after the third 24 hours of drug administration. The results can be used
to design safe collecting and discharge methods of the wastes.
Thyroid cancer, Radioactive waste discharge, Biological half-life, Radiation dose.
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http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-62&slc_lang=en&sid=1
MOHAMAD BAGHER
TAVAKOLI
mbtavakoli@mui.ac.ir
20031947532846003457
20031947532846003457
Yes
From the Department of Medical Physics and Medical Engineering, School of Medicine, Isfahan UniversityOf Medical Sciences, Isfahan, Iran