近年来，人们在处理喉肿瘤时越来越热衷于CT和MRI，许多研究显示CT和MRI可显示肿瘤对软骨的侵犯及喉外浸润程度，例如对会厌前间隙肿瘤的侵犯。但在放射治疗后，喉的CT和MRI的作用尚未肯定。由于放疗的炎性反应、喉功能的变化或肿瘤位于粘膜下使临床辨认肿瘤残留和肿瘤复发非常 In recent years, people are increasingly interested in CT and MRI in the treatment of laryngeal neoplasms. Many studies have shown that CT and MRI can show the invasion of cartilage and the extent of extra-laryngeal invasion of the tumor, for example, the invasion of interstitial tumors before the epiglottis. However, the role of laryngeal CT and MRI has not yet been confirmed after radiotherapy. Due to the inflammatory response to radiotherapy, changes in laryngeal function or the presence of the tumor in the submucosal phase make clinical identification of tumor residues and tumor recurrence very