Three-dimension conformal radiation therapy for 42 rectal cancer patients / 中华放射肿瘤学杂志

Objective To evaluate the effects of 3-dimensional conformal radiation therapy(3DCRT) in form of local control and survival of rectal cancer patients. Methods Forty-two patients with rectal cancer were irradiation by 3DCRT. They first received 40 Gy with larger field, at 1.8-2.0 Gy/f, 1 fraction qd, then followed by a boost of 24-27 Gy with reduced field, at 3.0-4.0 Gy/f, 1 fraction qod, to a total dose of 0,64-67 Gy. Results The 1-,2-,3-year survival rates were 83.3% ,64.3% and 45.2% .The 1-,2-,3-year local recurrence rates were 2.4%,11.9% and 23.9%. Conclusion Three-dimensional conformal radiotherapy is able to prolong the survival and improve the life quality of patients with rectal cancer.