2016年 · 第25卷第05期

At present, there are many related reports on breast-conserving postoperative radiotherapy for breast cancer patients^[1,2], but there are few reports on radiotherapy after modified radical mastectomy for breast cancer. This study will analyze the dose distribution of 23 patients who received IMRT and 3DCRT + electron ray radiotherapy after radical mastectomy, respectively.

Head and neck tumors (such as nasopharyngeal carcinoma) are closely related to the peripheral OAR, and IMRT has become the main form of radiotherapy for head and neck tumors due to its dosimetric advantage. Since IMRT produces a dose distribution that is highly conformal to the target area and forms a steep dose drop gradient between the OAR and the target area, if the treatment is not positioned accurately, it will not only cause the target area to not receive sufficient dose, but may also cause the high dose area to move onto the OAR, causing severe radiation damage. This study presents the validation results and analysis of 83 patients with head and neck tumors using airborne kV CBCT before IMRT in radiotherapy department of our hospital.

Co-sponsored by Pan-Pearl River Regional Cancer Radiotherapy Collaborative Group (PPRA-RTOG), Shenzhen Hospital of the University of Hong Kong, Department of Clinical Oncology, Li Ka Shing School of Medicine of the University of Hong Kong, Shenzhen People's Hospital, Hong Kong College of Radiologists, Hong Kong Anti-Cancer Society, Ho Hung-chiu Medical Foundation, Hong Kong Nasopharyngeal Cancer Research Society, Hong Kong Head and Neck Society, Guangdong Biomedical Engineering Society and Chinese Anti-Cancer Association Tumor Radiotherapy Professional Committee, the 11th Pan-Pearl River Regional Cancer Radiotherapy Conference and Academic Symposium in Memory of Professor Ho Hung-chiu Nasopharyngeal Cancer was successfully held in Shenzhen and Hong Kong from April 14 to 17, 2016.