Pelvic CT in addition to MRI to differentiate between rectal and sigmoid cancer on imaging using the sigmoid take-off as a landmark
| Autor: | Nino Bogveradze, Monique Maas, Najim el Khababi, Niels W Schurink, Max J Lahaye, Frans CH Bakers, Pieter J Tanis, Miranda Kusters, Geerard L Beets, Regina GH Beets-Tan, Doenja MJ Lambregts |
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| Přispěvatelé: | Surgery, CCA - Cancer Treatment and Quality of Life, CCA - Imaging and biomarkers, Amsterdam Gastroenterology Endocrinology Metabolism, School Office GROW, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, Beeldvorming, MUMC+: DA BV Medisch Specialisten Radiologie (9), RS: GROW - R1 - Prevention, Faculteit FHML Centraal, CCA - Cancer Treatment and quality of life |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Acta radiologica (Stockholm, Sweden. SAGE Publications Ltd Acta Radiologica, 64(2):02841851221091209, 467-472. SAGE Publications Ltd Bogveradze, N, Maas, M, el Khababi, N, Schurink, N W, Lahaye, M J, Bakers, F C H, Tanis, P J, Kusters, M, Beets, G L, Beets-Tan, R G H & Lambregts, D M J 2022, ' Pelvic CT in addition to MRI to differentiate between rectal and sigmoid cancer on imaging using the sigmoid take-off as a landmark ', Acta Radiologica . https://doi.org/10.1177/02841851221091209 Acta Radiologica. SAGE Publications Ltd |
| ISSN: | 0284-1851 |
| DOI: | 10.1177/02841851221091209 |
| Popis: | Background The sigmoid take-off (STO) is a recently established landmark to discern rectal from sigmoid cancer on imaging. STO-assessment can be challenging on magnetic resonance imaging (MRI) due to varying axial planes. Purpose To establish the benefit of using computed tomography (CT; with consistent axial planes), in addition to MRI, to anatomically classify rectal versus sigmoid cancer using the STO. Material and Methods A senior and junior radiologist retrospectively classified 40 patients with rectal/rectosigmoid cancers using the STO, first on MRI-only (sagittal and oblique-axial views) and then using a combination of MRI and axial CT. Tumors were classified as rectal/rectosigmoid/sigmoid (according to published STO definitions) and then dichotomized into rectal versus sigmoid. Diagnostic confidence was documented using a 5-point scale. Results Adding CT resulted in a change in anatomical tumor classification in 4/40 cases (10%) for the junior reader and in 6/40 cases (15%) for the senior reader. Diagnostic confidence increased significantly after adding CT for the junior reader (mean score 3.85 vs. 4.27; P Conclusion Availability of a consistent axial imaging plane – in the case of this study provided by CT – in addition to a standard MRI protocol with sagittal and oblique-axial imaging views can be helpful to more confidently localize tumors using the STO as a landmark, especially for more junior readers. |
| Databáze: | OpenAIRE |
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