La Radiologia medica
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La Radiologia medica · Jan 1996
[An in-vivo dosimetric study of the scattered radiation during the treatment of breast carcinoma].
In the last decade, radiation therapy has been increasingly used to treat breast cancer conservatively and some authors showed their concern about the radiogenic effects of irradiation outside the treated area. Our aim was to measure the scattered dose to the contralateral breast, thyroid and gonads during radiation therapy after conservative breast surgery. Thermoluminescent dosimeters, LiF Mn Ti (3 x 3 x 0.9 mm3), were used to measure scattered radiations outside the treated area. ⋯ In the 60Co group no correlation was statistically significant, except for the correlation between the beam area and the minimum dose to the gonads (p < 0.001). Our experience confirms the scattered dose to depend on head treatment, beam area, gantry angle and wedge angle. Finally, the literature on this subject is reviewed.