ESTIMATION OF RADIATION EXPOSURE TO THE ORAL MUCOSA DURING SUPERFICIAL RADIOTHERAPY OF CANCER OF THE LOWER LIP USING PERSONAL PROTECTIVE EQUIPMENT
Elena Viktorovna Shevchenko1, Lyudmila Innokentievna GALCHENKO1,2, Sergey Alekseevich Smolin1,2
1Irkutsk State Medical University of Minzdrav of Russia
2Irkutsk Regional Cancer Hospital
Keywords: близкофокусная рентгенотерапия, рак нижней губы, средства индивидуальной защиты, радиационная безопасность, лучевая нагрузка, superficial radiotherapy, lower lip cancer, personal protective equipment, radiation safety, radiation exposure
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.
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