Clinical dosimetry of the rectum in cathetron applications for treatment of carcinoma of the uterine cavity.
Rectal dose measurements have been carried out for 60 patients undergoing Cathetron therapy for the treatment of carcinoma of the uterine cervix at the Cancer Hospital, Indore. The measurements show that the maximum rectal dose occurred around 8 cm from the anal verge. In most of the cases (approximately 75%) the maximum rectal dose lies between 50 and 85% of the dose at point A. The combined biologically effective doses from intracavitary and external beam therapy regimes in this centre and the clinical complications have been compared with those of other centres. Although no immediate serious rectal complications have been observed, it is desirable to check the rectal dose using monitoring source pencils, so that the applicators and rectal retractor can be readjusted, if necessary, to minimise the dose.
D005260:Female; D006801:Humans; D011829:Radiation Dosage; D011878:Radiotherapy / Q000009:adverse effects; D012007:Rectum / Q000528:radiation effects*; D002583:Uterine Cervical Neoplasms / Q000532:radiotherapy*