MDCT with multiplanar reconstruction in the preoperative local staging of rectal tumor

• DOI: 10.1007/s00261-009-9591-y
• Publication Date: 2009-11-30T17:41:41Z
• Authors: Ali Ahmetoğlu; Ayşegül Cansu; Duygu Baki; Sibel Kul; Ümit Çobanoğlu; Etem Alhan; Feyyaz Özdemir
• Keywords: Adult; Male; Observer Variation; Rectal Neoplasms; Rectum; Contrast Media; Reproducibility of Results; Middle Aged; Sensitivity and Specificity; Iopamidol; 3. Good health; Radiographic Image Enhancement; 03 medical and health sciences; 0302 clinical medicine; Predictive Value of Tests; Preoperative Care; Image Processing, Computer-Assisted; Humans; Female; Barium Sulfate; Tomography, X-Ray Computed; Aged; Neoplasm Staging

To evaluate the accuracy of MDCT with multiplanar reconstruction in the preoperative local staging of rectal tumor.Thirty-seven patients with rectal tumor underwent preoperative MDCT. Two radiologists evaluated the depth of tumor invasion (T staging), regional lymph node involvement (N staging) and mesorectal fascia involvement on axial, sagittal, and coronal multiplanar reconstruction images in consensus. MDCT findings were compared with pathologic results, which served as the reference standard. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were assessed.Overall accuracy was 86% in T staging, 84% in N staging, 89% in International Union Against Cancer (UICC) Staging, and 94.5% in the prediction of mesorectal fascia involvement.MDCT with multiplanar reconstruction is an accurate technique in the preoperative local staging of rectal tumor.