Using GPU to calculate electron dose for hybrid pencil beam model

Using GPU to calculate electron dose for hybrid pencil beam model 1 first-author 1 1 1 corresp Corresponding author. E-mail address: wuzhangwen@gmail.com Corresponding author. E-mail address: wuzhangwen@gmail.com wuzhangwen@gmail.com Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China Hybrid pencil beam model (HPBM) offers an efficient approach to calculate the three-dimension dose distribution from a clinical electron beam. Still, clinical radiation treatment activity desires faster treatment plan process. Our work presented the fast implementation of HPBM-based electron dose calculation using graphics processing unit (GPU). The HPBM algorithm was implemented in compute unified device architecture running on the GPU, and C running on the CPU, respectively. Several tests with various sizes of the field, beamlet and voxel were used to evaluate our implementation. On an NVIDIA GeForce GTX470 GPU card, we achieved speedup factors of 2.18 – 98.23 with acceptable accuracy, compared with the results from a Pentium E5500 2.80 GHz Dual-core CPU. GPU HPBM Dose calculation References Boyd R A , Hogstrom K R , Rosen II . Med Phys , 1998 , 25 : 2176 - 2185 . Med Phys Jette D , Walker S . Med Phys , 1997 , 24 : 383 - 400 . Med Phys Boyd R A , Hogstrom K R , Starkschall G . Med Phys , 2001 , 28 : 2096 - 2104 . Med Phys Luo Zh M , Jette D , Walker S Z . Med Phys , 1998 , 25 : 1954 - 1963 . Med Phys Gou Ch J , Wu Z W , Luo Zh M . Med Phys , 2003 , 30 : 415 - 423 . Med Phys Hogstrom K R , Almond P R . Phys Med Biol , 2006 , 51 : R455 - R489 . Phys Med Biol Eyges L . Phys Rev , 1948 , 74 : 1534 - 1535 . Phys Rev Hardwick J , Grand S L , Anderson J , et al . IEEE Micro , 2008 , 28 : 13 - 27 . IEEE Micro Nickolls J , Montrym J , Oberman S , et al . IEEE Micro , 2008 , 28 : 39 - 55 . IEEE Micro Jia X , Gu X , Sempau J , et al . Phys Med Biol , 2010 , 55 : 3077 - 3086 . Phys Med Biol Zhou B , Cedric X Y , Danny Z , et al . Med Phys , 2010 , 37 : 5593 - 5603 . Med Phys Hissoiny S , Ozell B , Bouchard H , et al . Med Phys , 2011 , 38 : 754 - 764 . Med Phys Gu X J , Choi D , Men C , et al . Phys Med Biol , 2009 , 54 : 6287 - 6297 . Phys Med Biol Men C , Gu X , Choi D , et al . Phys Med Biol , 2009 , 54 : 6565 - 6573 . Phys Med Biol Luo Zh M , Jette D . Phys Med Biol , 1999 , 44 : N177 - 182 . Phys Med Biol Shiu A S , Tung S , Hogstron K R , et al . Med Phys , 1992 , 19 : 623 - 636 . Med Phys 10.13538/j.1001-8042/nst.22.349-352 2011-05-26 2011-12-20 2021-01-19 2011 Nuclear Science and Techniques 06 22