Investigation of Dose-Rate Effects in Pulsed Low Dose Rate Radiotherapy
نویسندگان
چکیده
منابع مشابه
Use of Pulsed Low–Dose Rate Radiotherapy in Refractory Malignancies12
BACKGROUND Most tumor cell lines exhibited low-dose hyperradiosensitivity (LDHRS) to radiation doses lower than 0.3 Gy. Pulsed low-dose rate radiotherapy (PLDR) took advantage of LDHRS and maximized the tumor control process. In this study, we retrospectively analyzed patients receiving PLDR for refractory malignancies. PATIENTS AND METHODS In total, 22 patients were included in our study: 9 ...
متن کاملTrueBeam Low Dose Rate Investigation for Pulsed Reduced Dose Rate IMRT
The capability of the TrueBeam treatment system to deliver step and shoot IMRT plans at low dose rates was evaluated. Beam characteristics during low dose rates (5 to 100 MU/min) were evaluated for consistency using a planar ion chamber array. MU constancy, linearity, and beam profile symmetry were all found to be equivalent within 0.5%. The response of the Scandi Dos Delta 4 system was also ev...
متن کاملSurgical Excision Followed by Low Dose Rate Radiotherapy in the Management of Resistant Keloids
BACKGROUND Depending on the cause, 40-90% of every deep dermis insult ends up in scar formation. Several modalities have been suggested as a treatment but a high rate of recurrence is reported in most of those interventions. High dose radiotherapy has been shown to be effective in reducing the recurrence rate. This study tried to determine the effectiveness of low dose rate radiotherapy follow...
متن کاملIs pulsed dose rate more damaging to spinal cord of rats than continuous low dose rate?
BACKGROUND AND PURPOSE Theoretical calculations suggest that pulsed dose-rate irradiation (PDR) should have approximately the same effectiveness as continuous low dose-rate (CLDR) when the same total dose is given in the same overall time, unless large doses per pulse (> 2 Gy) are used and/or non-exponential or very short half-times of repair (< 0.5 h) are present in the irradiated tissues. How...
متن کاملPulsed dose rate brachytherapy of lip cancer
PURPOSE PURPOSE To present our experience with pulsed dose rate brachytherapy (PDR BT) of lip cancer. MATERIAL AND METHODS The study group included 32 T1-4N0M0 lip cancer patients with a median age of 71 years (ranged 41-87 years), treated with interstitial PDR BT to the planned total dose of 60-70 Gy; 1 Gy/pulse, pulses repeated every hour a day. There were 26 untreated patients, and six ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathews journal of cancer science
سال: 2022
ISSN: ['2474-6797']
DOI: https://doi.org/10.30654/mjcs.10033