WorldCat Identities

Monzen, Hajime

Overview
Works: 2 works in 2 publications in 1 language and 2 library holdings
Publication Timeline
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Most widely held works by Hajime Monzen
A novel radiation-shielding undergarment using tungsten functional paper for patients with permanent prostate brachytherapy( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

MEASUREMENT OF ABSORPTION DOSE OUTSIDE IRRADIATION FIELD IN IMRT( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Abstract The absorption dose outside the irradiation field for prostate intensity-modulated radiation therapy was measured and evaluated by comparison with calculated values of radiation treatment planning system (TPS). The values of TPS calculated were using Varian CLINAC21EX/Eclipse and TomoTherapy Planning System for constant irradiation time. The absorption dose was measured by placing a glass-element dosemeter in a human-bone enclosure phantom with a planning target volume inside the irradiation field. The organs at risk were the rectum, spinal cord, thyroid, eyeball and the left lung. The calculated values of TPS, Varian CLINAC21EX/Eclipse and TomoTherapy Planning System were calculated, up to 17 and 55 cm from the isocenter, respectively. The absorbed dose outside the irradiation field diverged with increased distance from the isocenter (Varian/Eclipse: p = 0.03, TomoTherapy Planning System: p = 0.25). The calculated values for the absorbed dose outside the irradiation field were underestimated
 
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