老年人结肠癌彩超诊断与鉴别诊断

目的：探讨彩超在老年人结肠癌诊断与鉴别诊断中的应用。方法：回顾性分析63例经结肠镜活检或手术病理证实的老年结肠肿瘤彩超声像图。结果：结肠癌58例，非结肠癌5例。术前彩超诊断结肠癌55例，漏诊3例，误诊2例，非结肠癌3例，彩超诊断老年人结肠癌的敏感性94．8％，特异性60．0％，准确性92．1％，阳性预测值96．5％，阴性预测值50．0％。结论：彩超在老年人结肠癌诊断与鉴别诊断中具有重要价值。

Diagnosis and Differential Diagnosis of Color Doppler Ultrasound in Elderly Colon Carcinoma

Objective： To explore the application of color Doppler ultrasound for diagnosis and differential diagnosis in elderly colon carcinoma. Method： The sonograms of 63 cases in elderly colon tumor confirmed by colonoscopy biopsy and surgical pathology were retrospectively analyzed. Result： There were 58 eases colon carcinoma and 5 cases non-colon carcinoma. Fifty-five cases colon carcinoma and 3 cases non-colon carcinoma were diagnosed by color Doppler ultrasound before operation. Three cases were missed diagnosed, 2 cases were misdiagnosed. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of color Doppler ultrasound for diagnosis in elderly colon carcinoma were 94.8%, 60.0%, 92.1%, 96.5% and 50.0%, respectively. Conclusion： Color Doppler ultrasound has important value for diagnosis and differential diagnosis in elderly colon carcinoma.