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Calculation of Changes in Radiation Exposure due to Prostate Displacement in Permanent Prostate Brachytherapy
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نویسنده
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Baradaran-Ghahfarokhi Milad ,Mosleh-Shirazi Mohammad Amin ,Faghihi Reza ,Bagheri Mohammad Hadi ,Hadad Kamal ,Alavian-Ghavanini Ali ,Siavashpour Zahra ,Kasayi Hamed
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منبع
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middle east journal of cancer - 2010 - دوره : 1 - شماره : 3 - صفحه:123 -128
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چکیده
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Background: limited studies are available on the calculation of radiation exposure and its associated risks for people in contact with patients who have been treated with permanent prostate brachytherapy. in this study the changes in the radiation exposure were calculated in different stages of the bladder fullness in prostate seed brachytherapy. methods: magnetic resonance images of three patients with full and empty bladders and different prostate sizes (32-71 ml; mean 54.6 ml) were used for monte-carlo dose calculations. dose rate to skin for each patient was calculated using mcnp4c, mcnpx. results: there were no significant differences between dose distribution in the skin relative to the changes in the prostate position due to bladder filling (p=0.05). conclusion: our results showed a negligible change in radiation exposure around the patient due to prostate displacement after bladder filling.
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کلیدواژه
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Prostate displacement ,Prostate brachytherapy ,Radiation exposure ,Monte-Carlo ,MCNP
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آدرس
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shiraz university, School of Engineering, Mechanical Engineering Department, ایران, shiraz university of medical sciences, Namazi Hoapital, Physics Unit, Department of Radiotherapy and Oncology, ایران, shiraz university, School of Engineering, Mechanical Engineering Department, ایران, shiraz university of medical sciences, Department of Radiology and Medical Imaging Research Center, ایران, shiraz university, School of Engineering, Mechanical Engineering Department, ایران, shiraz university, School of Engineering, Mechanical Engineering Department, ایران, shiraz university, School of Engineering, Mechanical Engineering Department, ایران, shahid beheshti university, School of Engineering, Medical Radiation Engineering Department, ایران
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پست الکترونیکی
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milad_bgh@yahoo.com
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Authors
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