Tabuchi T, Itoh K, Ohshio G, Kojima N, Maetani Y, Shibata T, Konishi J
Department of Nuclear Medicine and Diagnostic Imaging, Graduate School of Medicine, Kyoto University, Japan.
AJR Am J Roentgenol. 1999 Aug;173(2):375-80. doi: 10.2214/ajr.173.2.10430140.
We compared early-phase CT with late-phase CT in the evaluation of pancreatic adenocarcinoma.
Both early- and late-phase CT images of 25 pancreatic adenocarcinomas were compared with surgical-pathologic findings. We evaluated tumor detectability, tumor size, and local tumor invasion.
Tumor detectability was 96% on early-phase CT imaging and 64% on late-phase CT imaging (p < .01). Sensitivity for anterior serosal invasion, retroperitoneal invasion, and arterial invasion on early-phase CT exceeded sensitivity on late-phase CT (p < .05). However, specificity for all factors on early-phase CT was less than or equal to specificity on late-phase CT. The grade of local tumor invasion on early-phase CT achieved better agreement with the surgical-pathologic results than did late-phase CT, especially for tumor size and retroperitoneal invasion.
Early-phase CT was better than late-phase CT in revealing tumors, tumor size, and retroperitoneal invasion.
我们比较了早期CT与晚期CT在评估胰腺腺癌中的作用。
将25例胰腺腺癌的早期和晚期CT图像与手术病理结果进行比较。我们评估了肿瘤的可检测性、肿瘤大小和局部肿瘤侵犯情况。
早期CT成像时肿瘤的可检测性为96%，晚期CT成像时为64%（p < 0.01）。早期CT对前浆膜侵犯、腹膜后侵犯和动脉侵犯的敏感性超过晚期CT（p < 0.05）。然而，早期CT对所有因素的特异性小于或等于晚期CT。与晚期CT相比，早期CT的局部肿瘤侵犯分级与手术病理结果的一致性更好，尤其是在肿瘤大小和腹膜后侵犯方面。
在显示肿瘤、肿瘤大小和腹膜后侵犯方面，早期CT优于晚期CT。
