Abstract：Objective To investigate the accuracy and reliability of the image automatic matching using X-ray volumetric image (XVI) system with the accelerator Elekta Synergy and to compare the matches with different methods and area. Methods A simulation plan using the head and neck phantom was designed and sent to XVI system for CBCT scanning. During the scanning,the couch for certain distance was moved and the data of XVI image automatic Matching in different matching methods and area was collected. Results The result of XVI image automatic matching is consistent and correct to direction and distance which the couch had been moved (x:(0.11 ± 0.41) mm, y:(－0.04± 2.6) mm, z:(0.28 ± 0.74 mm)).There are not significant differences between the results that matching in different matching methods and different matching area. Conclusions The automatic image Matching of XVI is accuracy and high reliability in recognition of offset error. But there are some significant differences on the automatic image Matching in different matching methods and different matching area.
Xu Senkui,Yao Wenyan,Lin Chengguang. The study of error in the head and neck phantom using the X-ray volumetric image system of Elekta Synergy accelerator with CBCT[J]. Chinese Journal of Radiation Oncology, 2014, 23(5): 433-436.
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