Low-dose-rate iodine-125 seed air kerma strength measurement intercomparison
نویسندگان
چکیده
منابع مشابه
Measurement of the strength of iodine-125 seed moving at unknown speed during implantation in brachytherapy
The aim of this study is to demonstrate the feasibility of estimating the strength of the moving radiation source during patient implantation. The requirement for the counting time was investigated by comparing the results of the measurements for the static source with those for the source moving at 2, 5, 10 and 20 cm s(-1). The utilized source was (125)I with an air-kerma strength of 0.432 U (...
متن کاملEstablishment of air kerma reference standard for low dose rate Cs‐137 brachytherapy sources
A guarded cylindrical graphite ionization chamber of nominal volume 1000 cm3 was designed and fabricated for use as a reference standard for low-dose rate 137Cs brachytherapy sources. The air kerma calibration coefficient (N(K)) of this ionization chamber was estimated analytically using Burlin's general cavity theory, as well as by the Monte Carlo simulation and validated experimentally using ...
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BACKGROUND Perineural invasion (PNI) is a histopathological characteristic of pancreatic cancer (PanCa). The aim of this study was to observe the treatment effect of continuous low-dose-rate (CLDR) irradiation to PNI and assess the PNI-related pain relief caused by iodine-125 ( 125 I) seed implantation. METHODS The in vitro PNI model established by co-culture with dorsal root ganglion (DRG) a...
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The purpose of this work was to develop a method for easily verifying that the activity or air kerma strength of pre-assembled eye plaques, used in the treatment of ocular melanomas, agrees with the activity or air kerma strength called for in the treatment plan. A Capintec CRC-7 Dose Calibrator with its standard vial/syringe sample holder was used to measure the activity of pre-assembled COMS ...
متن کاملA Comparison of AUA Symptom Scores following Permanent Low-Dose-Rate Prostate Brachytherapy with Iodine-125 and Cesium-131
Purpose: Transrectal ultrasound (TRUS) is the most common image modality used in permanent prostate brachytherapy (PPI). Although providing excellent prostate visualization, TRUS images are inferior to MRI images for identifying critical structures such as neurovascular bundles (NVB). To preserve erectile function after PPI, the traumatic injury resulting from needles passing through NVB is wor...
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ژورنال
عنوان ژورنال: Brachytherapy
سال: 2020
ISSN: 1538-4721
DOI: 10.1016/j.brachy.2019.10.001