多排螺旋计算机断层扫描在直肠癌分期中的准确性与内镜超声比较。
The accuracy of multi-detector row computerized tomography in staging rectal cancer compared to endoscopic ultrasound.
机构信息
Division of Gastroenterology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
出版信息
Saudi J Gastroenterol. 2013 May-Jun;19(3):108-12. doi: 10.4103/1319-3767.111950.
BACKGROUND/AIM: Our aim was to evaluate the diagnostic accuracy of multi-detector row computerized tomography (MDCT) in staging of rectal cancer by comparing it to rectal endoscopic ultrasound (EUS).
MATERIALS AND METHODS
We prospectively included all patients with rectal cancer referred to our gastroenterology unit for staging of rectal cancer from December 2007 until February 2011, 53 patients whose biopsy had proven rectal cancer underwent both MDCT scan of the pelvis and rectal EUS. Both imaging modalities were compared and the agreement between T- and N-staging of the disease was assessed.
RESULTS
We staged 62 patients with rectal cancer during the study period. Of these, 53 patients met the inclusion criteria and were evaluated (25 women and 28 men). The mean age was 57.79 ± 14.99 years (range 21-87). MDCT had poor accuracy compared with EUS in T-staging with a low degree of agreement (kappa = 0.26), while for N-staging MDCT had a better accuracy and a moderate degree of agreement with EUS (kappa = 0.45).
CONCLUSIONS
MDCT has a poor accuracy for predicting tumor invasion compared to EUS for T-staging while it has moderate accuracy for N-staging.
背景/目的：我们旨在通过与直肠内镜超声（EUS）比较，评估多排螺旋计算机断层扫描（MDCT）在直肠癌分期中的诊断准确性。
材料和方法
我们前瞻性地纳入了 2007 年 12 月至 2011 年 2 月期间因直肠癌分期而被转至我们胃肠病学部门的所有直肠癌患者，对 53 例经活检证实为直肠癌的患者进行了盆腔 MDCT 扫描和直肠 EUS。比较两种影像学方法，并评估疾病 T 期和 N 期分期的一致性。
结果
在研究期间，我们对 62 例直肠癌患者进行了分期。其中，53 例符合纳入标准并接受了评估（25 例女性和 28 例男性）。平均年龄为 57.79 ± 14.99 岁（范围 21-87）。MDCT 在 T 分期方面与 EUS 相比准确性较差，一致性程度较低（kappa = 0.26），而在 N 分期方面，MDCT 与 EUS 相比具有更好的准确性和中度一致性（kappa = 0.45）。
结论
与 EUS 相比，MDCT 在预测肿瘤侵犯方面的准确性较差，用于 T 分期，而在 N 分期方面具有中度准确性。
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