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颈部肿瘤的疗效观察,以往赖以望诊或触诊,近年来影象诊断进展迅速,CT能用为观察疗效的手段。1.喉、喉咽区CT的主要作用是提供以下情况:①有否向声门下的侵犯;②了解前连合的侵及程度;③掌握向甲状软骨、环状软骨的浸润程度;④声门固定的原因;⑤掌握咽旁间隙的侵犯程度;⑥掌握颈部、环状软骨后、舌根部及喉外的浸润程度;⑦有无颈部淋巴结转移。对于观察照射后的疗效,CT可以了解向深部或软骨、软组织浸润的特点,优于喉造影。2.口咽区 CT用于口咽
The observation of the efficacy of neck cancer has depended on the observation or palpation in the past. In recent years, the image diagnosis has progressed rapidly. CT can be used as a means to observe the curative effect. 1. The main role of CT in the laryngeal and laryngopharyngeal area is to provide the following conditions: 1 whether there is invasion under the glottis; 2 to understand the degree of invasion of the anterior commissure; 3 to grasp the degree of infiltration to the thyroid cartilage and cricoid cartilage; 4 glottic fixation The reasons; 5 master the extent of invasion of the parapharyngeal space; 6 grasp the neck, cricoid cartilage, tongue base and throat outside the degree of infiltration; 7 with or without lymph node metastasis. For observing the curative effect after irradiation, CT can be used to understand the characteristics of deep or cartilage, soft tissue infiltration, superior to larynx angiography. 2. Oropharyngeal area CT used for oropharynx