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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
In vivo dosimetry for head and neck carcinoma: Determination of target absorbed dose from entrance and exit absorbed dose measurements
EPJ Applied Physics, Volume 54, No. 1, Article ap100324, Year 2011
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Description
The aims of this work were to measure the entrance and exit dose for patient treated for head and neck tumors. The target absorbed dose was determined from the exit and entrance dose measurement. Twenty patients were evaluated. The results were compared to the calculated values and the midline dose was determinate and compared with the prescribed dose. 80 entrance doses and 80 exit doses measurements were performed. The average difference from expected values was 1.93% for entrance dose (SD 1.92%) and -0.34% for exit dose (SD 4.1%). The target absorbed dose differed from prescribed dose values by 2.94% (1.97%) for the results using the Noël method and 3.34% (SD: 2.29%) with the Rizzotti method. The total uncertainty budget in the measurement of the absorbed entrance and exit dose with diode, including diode reading, correction factors and diode calibration coefficient, is determined as 3.02% (1 s). Simple in vivo dose measurements are an additional safeguard against major setup errors and calculation or transcription errors that were missed during pre-treatment chart check. © EDP Sciences, 2011.
Authors & Co-Authors
Farhat, Leila
Tunisia, Sfax
Chu Habib Bourguiba
Besbes, Mounir
Tunisia, Tunis
Institut Salah Azaiez de Tunis
Bridier, André
France, Villejuif
Institut de Cancerologie Gustave Roussy
Daoud, Jamel L.
Tunisia, Sfax
Chu Habib Bourguiba
Statistics
Citations: 4
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1051/epjap/2011100324
ISSN:
12860042
Research Areas
Cancer
Health System And Policy