@article{oai:repo.qst.go.jp:00045412,
 author = {Mori, Shinichiro and Kobayashi, Masanao and Kumagai, Motoki and Minohara, Shinichi and 森 慎一郎 and 小林 正直 and 熊谷 始紀},
 issue = {1},
 journal = {Radiological Physics and Technology},
 month = {Jan},
 note = {To provide faster calculation of digitally reconstructed radiographs (DRRs) in patient-positioning verification, we developed and evaluated a GPU (graphic processing unit)-based DRR software application and comparison with a CPU (central processing unit)-based application. The evaluation metrics were calculation speed and image quality with various slice thicknesses. The results showed that GPU-based DRR computation was an average of 50 times faster than the CPU-based methodology, whereas the image quality was very similar. This excellent performance may increase the accuracy of patient positioning and improve the patient treatment-throughput time.},
 pages = {40--45},
 title = {Development of GPU-based Multi-threaded Software Application to Calculate Digitally Reconstructed Radiographs for Radiotherapy},
 volume = {2},
 year = {2009}
}