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下颌区(mandibular region)的范围包括下颌牙槽嵴、颊沟、舌下沟和磨牙后三角,下颌区的肿瘤常见,且常侵犯下颌骨(12％～25％)。对于早期下颌骨浸润病变,Ward(1983)等报道边缘切除与骨段切除的效果相似,但对于晚期病变,则必须行骨段切除,缺损修复较为困难。为了减少因治疗方案不当而造成的后果,手术前必须对患者颌骨浸润的程度作出评价,以提高局部控制率和修复效果。 作者对目前用于判断下颌骨浸润的不同影像技术进行了比较,旨在明确这些方法的准确性和价值。 材料和方法 对1992～1995年间收治的50例累
The mandibular region includes mandibular alveolar ridge, buccal groove, sublingual groove and molars posterior triangle. Tumors in the mandible area are common and often involve the mandible (12% -25%). For early lesions of the mandible, Ward (1983) et al. Reported that the resection of the margins resembles the resection of the resection, but resection of the lesion is necessary for advanced lesions. Defect repair is more difficult. In order to reduce the consequences of improper treatment, the degree of jaw infiltration in the patient must be evaluated before surgery to improve the local control rate and repair effect. The authors compared the different imaging techniques currently used to determine the extent of mandibular invasion in order to determine the accuracy and value of these methods. MATERIALS AND METHODS Fifty patients admitted between 1992 and 1995 were tired