International Journal of Radiation Research

en Effectiveness of oesophageal gastric junction tumour motion with and without a pneumatic abdominal compression belt in the era of precise image-guided radiation therapy Radiation Biology Radiation Biology تحقيق بديع Original Research <div style="text-align: justify;">Background: To investigate the effect of a pneumatic abdominal compression belt (PACB) on suppressing the movement of primary lesions in the oesophageal gastric junction (EGJ). Materials and Methods: Titanium clips A and B were placed on the upper and lower edges of the tumour grossly in 10 patients by using gastroscopy before preoperative chemoradiotherapy. Four sets of images of clips were obtained by 4DCT in each patient with and without PACB. Nine sets of CBCT images were obtained from each patient for analysis. Paired t tests and independent t tests were used to test for differences. Results: In the cranio-caudal (CC) directions, the internal motion of clip B was smaller with PACB than without PACB (P=0.000). The interfraction motion of clip B in the left-right (LR), anterior-posterior (AP) and CC directions was smaller with than without PACB (P=0.002, 0.002 and 0.005). We determined that 0.9, 0.9 and 0.9 cm ITV margins in the LR, AP and CC directions are suggested for EGJ lesions with PACB to better cover the tumour movements. Conclusion: A pneumatic abdominal compression belt can reduce the intra- and interfraction movements of EGJ tumours during preoperative radiotherapy.</div> Oesophageal gastric junction tumour, pneumatic abdominal compression belt, neo-adjuvant radiotherapy 147 151 http://ijrr.com/browse.php?a_code=A-10-1-1018&slc_lang=en&sid=1 N. Li 7900319475328460023158 7900319475328460023158 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China T-T Li 7900319475328460023159 7900319475328460023159 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China X-Y Xiang 7900319475328460023160 7900319475328460023160 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China X-D Liu 7900319475328460023161 7900319475328460023161 No Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China Y. Tang 7900319475328460023162 7900319475328460023162 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China Y-X Li 7900319475328460023163 7900319475328460023163 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China J-M Shi 7900319475328460023164 7900319475328460023164 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China W-Y Liu 7900319475328460023165 7900319475328460023165 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China H. Ren 7900319475328460023166 7900319475328460023166 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China H. Fang 7900319475328460023167 7900319475328460023167 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China Y. Tang 7900319475328460023168 7900319475328460023168 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China B. Chen 7900319475328460023169 7900319475328460023169 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China N-N Lu 7900319475328460023170 7900319475328460023170 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China J. Hao 7900319475328460023171 7900319475328460023171 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China S-N Qi 7900319475328460023172 7900319475328460023172 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China S-L Wang 7900319475328460023173 7900319475328460023173 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China Y-P Liu 7900319475328460023174 7900319475328460023174 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China Y-W Song 7900319475328460023175 7900319475328460023175 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China J. Jin jingjin1025@163.com 7900319475328460023176 7900319475328460023176 No Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China