Feasibility study of cone-beam computed tomography (CBCT) reconstruction algorithm for proton image-guided radiation therapy (IGRT)

作者：Han Dong Kyoon; Jo Byungdu; Lee Min Hee; Yoo Myung Seok; Kim Kyuseok; Lee Youngjin^*

来源：Optik, 2016, 127(20): 9691-9694.

DOI：10.1016/j.ijleo.2016.07.057

• X-ray photon
• Cone-beam computed tomography (CBCT)
• Reconstruction algorithm
• Proton image-guided radiation therapy

The radiation therapy is most important treatment technique in the field of the oncology. With the improved radiation therapy technologies such as proton image-guided radiation therapy (IGRT), the accuracy of the patient alignment system has been emphasized. The purpose of this study was to validate the possibility of cone-beam computed tomography (CBCT) reconstruction algorithm using X-ray and 3-D proton IGRT by acquiring images sequentially with continuous 360 gantry rotation. To confirm the feasibility of CBCT reconstruction algorithm, we acquired the reconstruction images of the proton IGRT for a mouse and ball phantom, respectively. According to the results, we demonstrated the feasibility of reconstruction algorithm for the proton IGRT. In conclusion, this reconstruction algorithm can help the determination of a treatment target and will be used a main patient alignment system for the proton IGRT. In the future work we need to compare the 180 projection view using X-ray imaging system of the proton therapy with other efficient projection views.

• 出版日期2016-10