(1) Objective To introduce the operative model, radiotherapeutic method, radiation-induced complication and cosmetic result of conservingbreast therapy on patients with breast cancer.

(2) Methods To work out radiotherapeutic plan in 22 patients on the basis of the carcinoma location, clinical target volume(CTV), patient health condition and therapeutic aim with Gamma-knife.

(3) The directional strengthen regulating radiotherapeutic apparatus includes shielding and protecting assembly, focusing units, strengthen regulating board and driving mechanism.

(4) Despite new developments in the surgical and radiotherapeutic fields, as well as in medical oncology, external beam radiotherapy is the cornerstone of the treatment of spinal metastases...

(5) Radiotherapeutic plan was worked out and dosage distribution were set on the basis of the carcinoma position, clinical target volume, health condition of patients and therapeutic aim.

(6) Objective:to enhance the achievement of detaining gastric canal for patients with nasopharyngeal cancer developed radiotherapeutic reaction to ensure the therapy continuity.

(7) Methods:Symptom checklist-90(SCL-90)was used to survey the 115 in-patients at separate radiotherapeutic stages.