Three-dimensional conformal radiotherapy is a mostly-used external radiotherapy for some tumors, e.g. prostate carcinoma, head and neck cancer, breast cancer and lung cancer ect.

• 三维适形放疗是治疗肿瘤的一种主要的外照射治疗方式,如:前列腺癌、头颈部癌、乳腺癌和肺癌等。