Tumor and nodal staging of colon cancer : accuracy of preoperative computed tomography at a Swedish high-volume center
(2019) In Acta Radiologica Open 8(12).- Abstract
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... (More)
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.
(Less)
- author
- Korsbakke, Kevin ; Dahlbäck, Cecilia LU ; Karlsson, Niklas ; Zackrisson, Sophia LU and Buchwald, Pamela LU
- organization
- publishing date
- 2019-12
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Radiologica Open
- volume
- 8
- issue
- 12
- article number
- 2058460119888713
- publisher
- SAGE Publications
- external identifiers
-
- pmid:31921464
- ISSN
- 2058-4601
- DOI
- 10.1177/2058460119888713
- language
- English
- LU publication?
- yes
- additional info
- © The Foundation Acta Radiologica 2019.
- id
- ddebf1b8-2e8a-4ab4-bac7-d570b4fcae30
- date added to LUP
- 2021-12-29 12:14:48
- date last changed
- 2021-12-30 14:08:12
@article{ddebf1b8-2e8a-4ab4-bac7-d570b4fcae30,
abstract = {{<p>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).</p><p>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).</p><p>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.</p><p>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.</p><p>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.</p>}},
author = {{Korsbakke, Kevin and Dahlbäck, Cecilia and Karlsson, Niklas and Zackrisson, Sophia and Buchwald, Pamela}},
issn = {{2058-4601}},
language = {{eng}},
number = {{12}},
publisher = {{SAGE Publications}},
series = {{Acta Radiologica Open}},
title = {{Tumor and nodal staging of colon cancer : accuracy of preoperative computed tomography at a Swedish high-volume center}},
url = {{http://dx.doi.org/10.1177/2058460119888713}},
doi = {{10.1177/2058460119888713}},
volume = {{8}},
year = {{2019}},
}