AIM: The accuracy of computed tomography (CT) in detecting local invasion (T status) and nodal metastasis (N status) of colon cancer was determined. METHOD: Data on the preoperative CT scan of 153 lesions from 152 patients with colon cancer were reviewed retrospectively. Evaluation included the T stage and N stage of the TNM system. The results were compared with those obtained by histopathological examination of the resected tumour. RESULTS: Of the 153 tumours, 117 (76.5%) were correctly classified as Stage T1 and T2 (33 tumours) and Stage T3 and T4 (84 tumours) by CT. The sensitivity and specificity were 70.2% and 79.2%, respectively, and the positive and negative predictive values were 85.7% and 60.0%. When analysed according to the individual T stage (Tx/Tis, T1, 2, 3, 4) and N stage (N0, 1, 2), the kappa coefficient with linear weighting was 0.208 (fair agreement) for T stage and 0.154 (slight agreement) for N stage. The estimation of tumour size showed good agreement with histopathology (Spearman correlation coefficient 0.865). CONCLUSION: CT scanning of colonic cancer showed 75% accuracy in identifying T1 and T2 cancers combined, but gave poor agreement between CT and histopathology for individual T stages. Colorectal Disease
AIM: The accuracy of computed tomography (CT) in detecting local invasion (T status) and nodal metastasis (N status) of colon cancer was determined. METHOD: Data on the preoperative CT scan of 153 lesions from 152 patients with colon cancer were reviewed retrospectively. Evaluation included the T stage and N stage of the TNM system. The results were compared with those obtained by histopathological examination of the resected tumour. RESULTS: Of the 153 tumours, 117 (76.5%) were correctly classified as Stage T1 and T2 (33 tumours) and Stage T3 and T4 (84 tumours) by CT. The sensitivity and specificity were 70.2% and 79.2%, respectively, and the positive and negative predictive values were 85.7% and 60.0%. When analysed according to the individual T stage (Tx/Tis, T1, 2, 3, 4) and N stage (N0, 1, 2), the kappa coefficient with linear weighting was 0.208 (fair agreement) for T stage and 0.154 (slight agreement) for N stage. The estimation of tumour size showed good agreement with histopathology (Spearman correlation coefficient 0.865). CONCLUSION: CT scanning of colonic cancer showed 75% accuracy in identifying T1 and T2 cancers combined, but gave poor agreement between CT and histopathology for individual T stages. Colorectal Disease
Authors: A Venara; C Ridereau-Zins; L Toque; E Cesbron; S Michalak; E Lermite; C Aube; A Hamy Journal: Int J Colorectal Dis Date: 2015-02-27 Impact factor: 2.571
Authors: A K Warps; D Saraste; M Westerterp; R Detering; A Sjövall; A Martling; J W T Dekker; R A E M Tollenaar; P Matthiessen; P J Tanis Journal: Surg Endosc Date: 2022-03-08 Impact factor: 3.453
Authors: David G Calatayud; Teresa Jardiel; Erica Cordero-Oyonarte; Amador C Caballero; Marina Villegas; Ana Valle-Noguera; Aranzazu Cruz-Adalia; Marco Peiteado Journal: Int J Mol Sci Date: 2022-03-21 Impact factor: 5.923