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目的研究CT在下颌骨癌侵犯中的诊断价值。方法选择43例口腔癌侵犯下颌骨而行下颌骨节段性切除的病人,分为A(外周侵犯型)、B(中心侵犯型)两组,对比研究CT与手术标本组织病理学检查的切缘范围。结果A组:CT骨侵犯范围较病理检查低估1.42±0.35cm,二者的差异有高度统计学意义。B组:CT比病理检查低估2.55±1.44cm,二者的差异有统计学意义。结论CT检查可以估测下颌骨癌侵犯下颌骨的范围从而避免术中过多的切除下颌骨,对术后下颌骨的重建及下颌骨功能的保存具有重要的意义。
Objective To study the diagnostic value of CT in the invasion of mandibular cancer. Methods Forty-three patients with mandibular involvement of the mandible and mandibular segmental resection were selected and divided into two groups: A (peripheral invasion type) and B (central insertion type). The margins of histopathological examination of CT and surgical specimens were compared range. Results In group A, the extent of CT bone invasion was 1.42 ± 0.35cm lower than that of pathological examination, the difference between them was highly statistically significant. Group B: CT underestimated the pathological examination of 2.55 ± 1.44cm, the difference was statistically significant. Conclusion CT scan can estimate the extent of mandibular bone invasion of the mandible in order to avoid excessive resection of the mandible, which is of great significance for the reconstruction of the mandible and the preservation of mandibular function.