Breast skin doses from brachytherapy using MammoSite® HDR, intensity modulated radiation therapy, and tangential fields techniques
2007
Skin doses from brachytherapy using MammoSite® HDR, Intensity Modulated Radiation Therapy (IMRT), and conventional tangential fields techniques were compared. For each treatment technique, skin doses were measured using paired thermoluminescent dosimeters placed on the patient's skin: (i) directly above the balloon catheter during MammoSite® HDR brachytherapy treatments and (ii) 4 cm inside the treatment borders during the IMRT and conventional breast treatments. The mean dose measured was about 58% of the prescription dose for the patients treated using the MammoSite® technique. On the other hand, for patients treated with IMRT and tangential fields, the mean dose was found to be about 69% and 71% of the corresponding prescription dose. This study suggests that in breast cancer radiation treatments the MammoSite® HDR technique reduces skin doses compared to IMRT and tangential field techniques.PACS numbers: 87.53.Jw, 87.53.Xd, 87.66.Sq
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