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Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center
BACKGROUND: When deciding treatment options for patients with colon cancer, accurate staging is required. In Sweden, the main preoperative evaluation modality to determine tumor and nodal stage is computed tomography (CT). PURPOSE: The aim of this study was to investigate how well the preoperative (...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939391/ https://www.ncbi.nlm.nih.gov/pubmed/31921464 http://dx.doi.org/10.1177/2058460119888713 |
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author | Korsbakke, Kevin Dahlbäck, Cecilia Karlsson, Niklas Zackrisson, Sophia Buchwald, Pamela |
author_facet | Korsbakke, Kevin Dahlbäck, Cecilia Karlsson, Niklas Zackrisson, Sophia Buchwald, Pamela |
author_sort | Korsbakke, Kevin |
collection | PubMed |
description | BACKGROUND: When deciding treatment options for patients with colon cancer, accurate staging is required. In Sweden, the main preoperative evaluation modality to determine tumor and nodal stage is computed tomography (CT). PURPOSE: The aim of this study was to investigate how well the preoperative (CT-determined) clinical tumor and nodal stage (cTN) correlated with the postoperative histopathological stage (pTN). Another aim was to validate the tumor and nodal stage data in the Swedish Colorectal Cancer Registry (SCRCR). MATERIAL AND METHODS: The SCRCR was used to identify patients with colon cancer, treated at a Swedish high-volume center during 2013–2016 (n = 974). Data were gathered from medical records regarding cTN and pTN stage, and predefined patient and tumor variables. The agreement between cTN and pTN was analyzed using kappa statistics. RESULTS: After excluding patients with either pre- or postoperative TN stage missing, 383 patients remained for further analyses. The analyses showed an agreement between cT and pT of κ: 0.27 and between cN and pN of κ: 0.21 (fair agreement). When comparing tumors with low (T1–3; N0) versus high risk (T4; N1–2), the kappa value was 0.19 (slight agreement). When comparing the SCRCR to medical records, 78% of completely staged tumors had been correctly reported. CONCLUSION: The agreement between cTN and pTN was low in this study population, indicating a need for enhanced precision of the preoperative staging process. A high frequency of erroneous preoperative staging data in the SCRCR shows the need for further efforts of ensuring correct data transfers into the registry. |
format | Online Article Text |
id | pubmed-6939391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-69393912020-01-09 Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center Korsbakke, Kevin Dahlbäck, Cecilia Karlsson, Niklas Zackrisson, Sophia Buchwald, Pamela Acta Radiol Open Original Article BACKGROUND: When deciding treatment options for patients with colon cancer, accurate staging is required. In Sweden, the main preoperative evaluation modality to determine tumor and nodal stage is computed tomography (CT). PURPOSE: The aim of this study was to investigate how well the preoperative (CT-determined) clinical tumor and nodal stage (cTN) correlated with the postoperative histopathological stage (pTN). Another aim was to validate the tumor and nodal stage data in the Swedish Colorectal Cancer Registry (SCRCR). MATERIAL AND METHODS: The SCRCR was used to identify patients with colon cancer, treated at a Swedish high-volume center during 2013–2016 (n = 974). Data were gathered from medical records regarding cTN and pTN stage, and predefined patient and tumor variables. The agreement between cTN and pTN was analyzed using kappa statistics. RESULTS: After excluding patients with either pre- or postoperative TN stage missing, 383 patients remained for further analyses. The analyses showed an agreement between cT and pT of κ: 0.27 and between cN and pN of κ: 0.21 (fair agreement). When comparing tumors with low (T1–3; N0) versus high risk (T4; N1–2), the kappa value was 0.19 (slight agreement). When comparing the SCRCR to medical records, 78% of completely staged tumors had been correctly reported. CONCLUSION: The agreement between cTN and pTN was low in this study population, indicating a need for enhanced precision of the preoperative staging process. A high frequency of erroneous preoperative staging data in the SCRCR shows the need for further efforts of ensuring correct data transfers into the registry. SAGE Publications 2019-12-30 /pmc/articles/PMC6939391/ /pubmed/31921464 http://dx.doi.org/10.1177/2058460119888713 Text en © The Foundation Acta Radiologica 2019 http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Article Korsbakke, Kevin Dahlbäck, Cecilia Karlsson, Niklas Zackrisson, Sophia Buchwald, Pamela Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title | Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title_full | Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title_fullStr | Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title_full_unstemmed | Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title_short | Tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a Swedish high-volume center |
title_sort | tumor and nodal staging of colon cancer: accuracy of preoperative computed tomography at a swedish high-volume center |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6939391/ https://www.ncbi.nlm.nih.gov/pubmed/31921464 http://dx.doi.org/10.1177/2058460119888713 |
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