Comparative analysis of supraclavicular area mobility in locally advanced esophageal cancer radiation therapy with two different fixed ways

• Published in: Ji chu yi xue yu lin chuang = Jichu yixue yu linchuang = Basic medical sciences and clinics Vol. 42; no. 1; pp. 131 - 135
• Main Author: WAN Bao, HUAN Fu-kui, ZHAO Yu, CHEN Huan, GENG Song-song, YAN Hui, ZHANG Yan-xin
• Format: Journal Article
• Language: Chinese
• Published: Institute of Basic Medical Sciences and Peking Union Medical College Hospital, Chinese Academy of Medical Sciences / Peking Union Medical College 01-01-2022
• Subjects: locally advanced esophageal cancer|acromioclavicular joint mobility|setup error analysis|radiotherapy
• ISSN: 1001-6325
• DOI: 10.16352/j.issn.1001-6325.2022.01.023

Objective To compare the setup errors provided by the chest and abdomen flat frame fixation device and integral cervico-thoracic fixation device in supraclavicular regions of locally advanced esophageal cancer patients. Methods The cone beam computed tomography (CBCT) images of 50 patients with locally advanced esophageal cancer and received radiotherapy in supraclavicular region were retrospectively analyzed. The chest and abdomen flat frame fixation device (group A) or the integral cervicothoracic fixation device (group B) were used respectively with 25 in each.There were 175 CBCT images in group A and 230 CBCT images in group B. The setup errors of the two groups were analyzed, and the movement and displacement of acromioclavicular joint in three-dimensions were measured. The differences were compared by independent sample t test and rank sum test. Results The setup errors were significantly different between group A and group B. The P value in X axis (left-right) and Z axis (anterior-posterior) were both