International Journal of Radiation Research
نشریه پرتو پژوه
Int J Radiat Res
Basic Sciences
http://ijrr.com
79
journal79
2322-3243
2345-4229
10.61186/ijrr
en
jalali
1393
7
1
gregorian
2014
10
1
12
4
online
1
fulltext
en
Dose measurement outside of radiotherapy treatment field (Peripheral dose) using thermoluminesent dosimeters
Radiation Biology
Radiation Biology
تحقيق بديع
Original Research
<p><strong>Background:</strong> In radiation therapy, peripheral dose or the dose outside the radiotherapy field, is important when anatomical structures with very low dose tolerances are involved. One of these critical organs in pelvic irradiation is testis. The amount of radiation delivered to the testes in radiotherapy must be kept as small as possible, consistent with the limit dose of this organ. The threshold doses for temporary and permanent sterility are 0.15 Gy and 6-8 Gy, respectively. Therefore, in pelvic irradiation, protecting testis from these doses and also scattered radiation which could escalate testis dose should be considered. <strong>Materials and Methods:</strong> In order to determine the possibility of using testicular shield for high and low energies, TLD dosimetry was done on phantom and 27 patients involved with bladder, rectum and prostate cancers. <strong>Results:</strong> Dosimetric results showed that the ability of testicular shield in reducing testes absorbed dose is approximately the same (about 7 cGy) for low and high energy photon beams. <strong>Conclusion:</strong> a testicular shield with a fixed thickness of 1.27cm can be used as testis protection for either high and low energies.</p>
Testicular shield, pelvic irradiation, peripheral dose
355
359
http://ijrr.com/browse.php?a_code=A-10-1-528&slc_lang=en&sid=1
N.
Banaee
790031947532846009443
790031947532846009443
No
Department of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
H.A.
Nedaie
Nedaieha@sina.tums.ac.ir
790031947532846009444
790031947532846009444
Yes
Radiotherapy Oncology Department, Cancer research Centre, Tehran University of Medical Sciences, Tehran, Iran
E.
Esmati
790031947532846009445
790031947532846009445
No
Radiotherapy Oncology Department, Cancer research Centre, Tehran University of Medical Sciences, Tehran, Iran
H.
Nosrati
790031947532846009446
790031947532846009446
No
Shahid Beheshti University of Medical Sciences, Tehran, Iran
M.
Jamali
790031947532846009447
790031947532846009447
No
Radiotherapy Oncology Department, Cancer research Centre, Tehran University of Medical Sciences, Tehran, Iran