Radiotherapy for esophageal carcinoma (a) Indications
Patients generally good (KPS> 70 points), lesion length preferably not more than 8cm, no perforation or desolate tract, there is no perforation of precursor or chest pain, can enter the semi-liquid food or the normal diet, no distant metastasis, the first process radiation treatment, for a cytology or pathology diagnosis.
Esophageal cancer with radical radiation therapy (b) contraindications
Cachexia, systemic widespread metastasis, esophageal tracheal thin, complete obstruction of the esophagus, the main organ severe disabilities, and recent esophageal bleeding who have.
Radiotherapy for esophageal carcinoma (c) the choice of radioactive sources
Accelerator produces X-rays and 60Co -rays compared to no difference in terms of biological effects, and high-energy X-ray penetrating power than 60Co ray intensity, deep and therefore a higher dose of 60Co, -ray is equivalent to 4MVX rays. Therefore, radiotherapy is generally used in 60Co ray or 615MVX ray. Thoracic esophageal cancer should not use 60Co rays.