What are the radiotherapy methods for esophageal cancer?

The main types of radiotherapy for esophageal cancer include the following: 1. Conventional radiotherapy: This is the earliest form of radiotherapy, but its usage has gradually decreased due to significant damage to normal tissues. 2. Conformal radiotherapy: Compared with conventional radiotherapy, conformal radiotherapy can target the tumor more precisely, thereby reducing damage to surrounding healthy tissues. 3. Intensity-modulated radiotherapy (IMRT): IMRT is a more advanced technique that allows adjustment of radiation doses within the target area according to treatment requirements, providing better protection for normal tissues. 4. Stereotactic radiosurgery: This method causes minimal damage to surrounding healthy tissues. By utilizing precise spatial localization and small-beam, high-dose irradiation, it achieves treatment effects similar to those of surgery. The specific choice of radiotherapy should be comprehensively determined based on factors such as the patient's condition, tumor location, and stage.