Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis

<strong>Background</strong> Pathological grading of non-invasive urothelial carcinoma has a direct impact upon management. This study evaluates the reproducibility of grading these tumours on glass slides and digital pathology. <br> <strong>Methods</strong> Forty eight...

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Main Authors: Colling, R, Colling, H, Browning, L, Verrill, C
Format: Journal article
Language:English
Published: BioMed Central 2021
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author Colling, R
Colling, H
Browning, L
Verrill, C
author_facet Colling, R
Colling, H
Browning, L
Verrill, C
author_sort Colling, R
collection OXFORD
description <strong>Background</strong> Pathological grading of non-invasive urothelial carcinoma has a direct impact upon management. This study evaluates the reproducibility of grading these tumours on glass slides and digital pathology. <br> <strong>Methods</strong> Forty eight non-invasive urothelial bladder carcinomas were graded by three uropathologists on glass and on a digital platform using the 1973 WHO and 2004 ISUP/WHO systems. <br> <strong>Results</strong> Consensus grades for glass and digital grading gave Cohen’s kappa scores of 0.78 (2004) and 0.82 (1973). Of 142 decisions made on the key therapeutic borderline of low grade versus high grade urothelial carcinoma (2004) by the three pathologists, 85% were in agreement. For the 1973 grading system, agreement overall was 90%. <br> <strong>Conclusions</strong> Agreement on grading on glass slide and digital screen assessment is similar or in some cases improved, suggesting at least non-inferiority of DP for grading of non-invasive urothelial carcinoma.
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spelling oxford-uuid:c6c74801-b491-45bb-9596-e771d49338062022-04-11T16:47:20ZValidation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c6c74801-b491-45bb-9596-e771d4933806EnglishSymplectic ElementsBioMed Central2021Colling, RColling, HBrowning, LVerrill, C<strong>Background</strong> Pathological grading of non-invasive urothelial carcinoma has a direct impact upon management. This study evaluates the reproducibility of grading these tumours on glass slides and digital pathology. <br> <strong>Methods</strong> Forty eight non-invasive urothelial bladder carcinomas were graded by three uropathologists on glass and on a digital platform using the 1973 WHO and 2004 ISUP/WHO systems. <br> <strong>Results</strong> Consensus grades for glass and digital grading gave Cohen’s kappa scores of 0.78 (2004) and 0.82 (1973). Of 142 decisions made on the key therapeutic borderline of low grade versus high grade urothelial carcinoma (2004) by the three pathologists, 85% were in agreement. For the 1973 grading system, agreement overall was 90%. <br> <strong>Conclusions</strong> Agreement on grading on glass slide and digital screen assessment is similar or in some cases improved, suggesting at least non-inferiority of DP for grading of non-invasive urothelial carcinoma.
spellingShingle Colling, R
Colling, H
Browning, L
Verrill, C
Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title_full Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title_fullStr Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title_full_unstemmed Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title_short Validation of grading of non-invasive urothelial carcinoma by digital pathology for routine diagnosis
title_sort validation of grading of non invasive urothelial carcinoma by digital pathology for routine diagnosis
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AT browningl validationofgradingofnoninvasiveurothelialcarcinomabydigitalpathologyforroutinediagnosis
AT verrillc validationofgradingofnoninvasiveurothelialcarcinomabydigitalpathologyforroutinediagnosis