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

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• 作者：Dong-Kyoon Han^a ; Byungdu Jo^b ; Min-Hee Lee^c ; Myung Seok Yoo^a ; ^d ; Kyuseok Kim^e ; Youngjin Lee^a ; ^{radioyoungj@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：X-ray photon ; Cone-beam computed tomography (CBCT) ; Reconstruction algorithm ; Proton image-guided radiation therapy
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：127
• 期：20
• 页码：9691-9694
• 全文大小：769 K

文摘

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.