Comparison of geometrical uncertainties in the radiotherapy for various treatment sites with two different immobilization marking methods.

Objective: The skin marking method (SMM) and bow-form-ruler marking method (BFRM) are two commonly used patient marking methods in mainland China. This study aims to evaluate SMM and BFRM by comparing the inter-fraction setup errors from using these two methods together with vacuum cushion immobilization in patients underwent radiotherapy for different treatment sites.

Materials And Methods: Eighteen patients diagnosed with pelvic, abdominal and thoracic malignant tumors (with 6 patients per treatment site) were enrolled in this prospective study.

Bevacizumab alleviates radiation-induced brain necrosis: A report of four cases.

To analyze the therapeutic effect of bevacizumab on radiation-induced brain necrosis. Four radiation-induced brain necrosis patients, administered with bevacizumab at a dose of 7.5 mg/kg every 3 weeks, 2 times.