ESTIMATION OF RADIATION EXPOSURE TO THE ORAL MUCOSA DURING SUPERFICIAL RADIOTHERAPY OF CANCER OF THE LOWER LIP USING PERSONAL PROTECTIVE EQUIPMENT
https://doi.org/10.15372/SSMJ20190514
Abstract
The purpose of the study is to evaluate the effectiveness of the shielding of leaded rubber plates in superficial radiotherapy of lower lip cancer of stage I–II. Material and methods. A comparison was made of the timing and severity of oral mucosa and alveolar ridge damage in patients who used and did not use personal protective equipment. Experimental studies were carried out using a tissue-equivalent phantom and thermoluminescent detectors LiF activated by Mg and Ti. The summary doses received by the alveolar are calculated. Results and discussion. The total dose of X-ray radiation to the alveolar ridge in the absence of shielding is 64, 38 and 16 Gy for 1.0, 1.5 and 2.0 cm thick lip, respectively. The obtained values of the absorbed doses with personal protective equipment indicate a high shielding ability of the lead rubber used in the clinic. The use of shielding devices for superficial radiotherapy of lower lip cancer can improve the quality of life, reduces the duration and severity of radiation damage.
Keywords
superficial radiotherapy,
lower lip cancer,
personal protective equipment,
radiation safety,
radiation exposure
Supporting agencies: The authors are grateful to Kristina Andreevna Bukharskaya, medical physicist of the radiotherapy department of the Regional Oncology Dispensary (Irkutsk), for therheir help in taking measurements using thermoluminescent dosimeters.
About the Authors
E. V. Shevchenko
Irkutsk State Medical University of Minzdrav of Russia
Russian Federation
Russian Federation
doctor of biological sciences, professor
664003, Irkutsk, Krasnogo Vosstaniya str., 1
L. I. Galchenko
Irkutsk State Medical University of Minzdrav of Russia,
Irkutsk Regional Cancer Hospital
Russian Federation
Russian Federation
candidate of medical sciences
664003, Irkutsk, Krasnogo Vosstaniya str., 1
664035, Irkutsk, Frunze str., 32
S. A. Smolin
Irkutsk State Medical University of Minzdrav of Russia,
Irkutsk Regional Cancer Hospital
Russian Federation
Russian Federation
664003, Irkutsk, Krasnogo Vosstaniya str., 1
664035, Irkutsk, Frunze str., 32
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