头颈部恶性肿瘤的治疗效果,受淋巴结转移的影响很大,为了不遗漏小的转移淋巴结,大量的病人在手术时不能进行选择性淋巴结清扫术,使很多病人遭受不必要的痛苦。临床触诊时,由于检查者的经验不一,以及淋巴结的大小、部位、外科手术后瘢痕或放射治疗后纤维化等因素,其准确率受到一 The treatment of head and neck malignant tumors is strongly influenced by lymph node metastases. To avoid missing small metastatic lymph nodes, a large number of patients can not undergo selective lymph node dissection at the time of surgery and cause unnecessary suffering to many patients. Clinical palpation, due to the different experience of the examiner, as well as the size of the lymph nodes, location, scar after surgery or radiation therapy after fibrosis and other factors, the accuracy of a