TH-CD-304-02: Clinical Uncertainty of in Vivo Dosimetry for Intensity-Modulated Radiation Therapy Using Optically-Stimulated Luminescent Dosimeters

2015 ◽  
Vol 42 (6) ◽  
pp. 3722-3722 ◽  
Author(s):  
AC Riegel ◽  
A Rea ◽  
A Kuruvilla ◽  
G Gill ◽  
S Souri ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Intensity Modulated Radiation Therapy ◽  
In Vivo Dosimetry ◽  
Clinical Uncertainty ◽  
Intensity Modulated ◽  
Optically Stimulated Luminescent Dosimeters

Characterisation and use of OSLD for in vivo dosimetry in head and neck intensity-modulated radiation therapy

2020 ◽  
pp. 1-7
Author(s):  
L. Jose Solomon Raj ◽  
Benedicta Pearlin ◽  
B. S. Timothy Peace ◽  
Rajesh Isiah ◽  
I. Rabi Raja Singh
Keyword(s):  
Radiation Therapy ◽  
Head And Neck ◽  
Dose Rate ◽  
Intensity Modulated Radiation Therapy ◽  
Rate Dependence ◽  
Planning System ◽  
Treatment Planning System ◽  
In Vivo Dosimetry ◽  
Intensity Modulated

Abstract Aim: This study reveals the characteristic nature and the use of optically stimulated luminescence dosimeters (OSLD) as an in vivo dosimetry tool for head and neck intensity-modulated radiation therapy (IMRT). Materials and methods: Calibration and characterisation of OSLD such as sensitivity, reproducibility, dose-rate dependence, beam quality dependence, output factor measurement and comparison of two bleaching techniques using halogen and compact fluorescent lamp (CFL) were initially performed. Later, eye dose measurements were performed for head and neck IMRT patients using OSLD and were compared with the corresponding dose calculated by the treatment planning system (TPS). Results: While the sensitivity was found to be within ±5%, the dose-rate dependence and reproducibility were found to be within ±3%. The OSLD showed an under-response of 3% for 15 MV and an increase in response by 5% for Co60 (1·25 MeV) when compared with the 6 MV X-ray beam. Therefore, a separate calibration for different beam energies is required. The percentage deviation of OSLD to that of TPS was found to be within ±2·77%. The OSLD has been successfully used for the in vivo dosimetry of patients who received IMRT. Hence, it is concluded that OSLDs can serve as effective dosimeters for in vivo dosimetry.

Clinical results of an EPID-based in-vivo dosimetry method for pelvic cancers treated by intensity-modulated radiation therapy

2014 ◽  
Vol 30 (6) ◽  
pp. 690-695 ◽  
Author(s):  
J. Camilleri ◽  
J. Mazurier ◽  
D. Franck ◽  
P. Dudouet ◽  
I. Latorzeff ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Intensity Modulated Radiation Therapy ◽  
Clinical Results ◽  
In Vivo Dosimetry ◽  
Intensity Modulated
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