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目的:评价CT和SPECT在检测下颌牙龈鳞状细胞癌侵犯下颌骨中的价值。方法:收集2002年2月-2006年10月间青岛大学医学院附属医院21例下颌牙龈鳞状细胞癌住院患者,以组织病理学检查结果为对照,对CT、SPECT资料进行比较,评价CT和SPECT的诊断价值。结果:21例患者中,SPECT的灵敏度、准确度、阴性预测值、正确指数分别为100.00%、95.24%、100.00%、1.00,CT的灵敏度、准确度、阴性预测值、正确指数分别为80.00%、80.95%、20.00%、0.80,CT有80.00%(4/5)的假阴性,而SPECT无假阴性。结论:与CT相比,SPECT的诊断效能高,故可作为牙龈癌侵犯下颌骨的筛查方法。
Objective: To evaluate the value of CT and SPECT in detecting mandibular gingival squamous cell carcinoma invade the mandible. Methods: Twenty-one patients hospitalized with mandibular gingival squamous cell carcinoma in our hospital from February 2002 to October 2006 were collected. The histopathological results were compared with CT and SPECT data to evaluate CT and The diagnostic value of SPECT. Results: The sensitivity, accuracy, negative predictive value and correct index of SPECT were 100.00%, 95.24%, 100.00%, 1.00, respectively. The sensitivity, accuracy and negative predictive value of SPECT in the 21 patients were 80.00% , 80.95%, 20.00%, 0.80, CT, 80.00% (4/5) of false negative, and SPECT no false negative. Conclusion: Compared with CT, the diagnostic efficiency of SPECT is high, so it can be used as a screening method for gingival cancer invade the mandible.