Dose Rate Definition in Brachytherapy

Fractionated High-Dose-Rate Brachytherapy

Purpose: A growing body of data suggests that local control in nasopharyngeal cancer (NPC) is related to the radiation dose administered. We conducted a singleinstitution study of high-dose radiotherapy (RT), which incorporated high-dose-rate (HDR) brachytherapy (BT). These results were analyzed together with data obtained from controls who did not receive BT. Patients and Methods: The BT group...

Dose rate does matter in endovascular brachytherapy.

Dear Editor-in-Chief, In a recent letter, Das and Peters [1] have made the suggestion that dose rate is not an important factor in determining the effectiveness of endovascular brachytherapy. As we [2–4] and others [5] have argued earlier, we suggest here that the dose rate or, equivalently, the treatment time, is important. Das and Peters [1] correctly argue that if the irradiation time is muc...

”Maximum dose” points in cervical and endometrial cancer medium dose rate brachytherapy

Background: Best dose distribution in target volume and control of Organ at Risk (OAR) dose are the two main goals in brachytherapy. Materials and Methods: In this study in vivo dosimetry in 4 rectal points was performed by Transillumination Dosimeter (TLD) s and the measured doses were compared in different patients. One point was reported to have the maximum dose in each patient and the very ...

High-dose-rate Brachytherapy for Prostate

High dose rate brachytherapy for prostate cancer.

High dose rate (HDR) afterloading brachytherapy in the management of localised prostate cancer has practical, physical and biological advantages over low dose rate seed brachytherapy. There are no free live sources used, no risk of source loss and since the implant is a temporary procedure following discharge no issues with regard to radioprotection use of existing facilities. Adequate coverage...