Precise Identification of Cell and Tissue Features Important for Histopathologic Diagnosis by a Whole Slide Imaging System

Journal of Pathology Informatics
Thomas W BauerJinsong Qiu

Abstract

Previous studies have demonstrated the noninferiority of pathologists' interpretation of whole slide images (WSIs) compared to microscopic slides in diagnostic surgical pathology; however, to our knowledge, no published studies have tested analytical precision of an entire WSI system. In this study, five pathologists at three locations tested intra-system, inter-system/site, and intra- and inter-pathologist precision of the Aperio AT2 DX System (Leica Biosystems, Vista, CA, USA). Sixty-nine microscopic slides containing 23 different morphologic features suggested by the Digital Pathology Association as important to diagnostic pathology were identified and scanned. Each of 202 unique fields of view (FOVs) had 1-3 defined morphologic features, and each feature was represented in three different tissues. For intra-system precision, each site scanned 23 slides at three different times and one pathologist interpreted all FOVs. For inter-system/site precision, all 69 slides were scanned once at each of three sites, and FOVs from each site were read by one pathologist. To test intra- and inter-pathologist precision, all 69 slides were scanned at one site, FOVs were saved in three different orientations, and the FOVs were transferred t...Continue Reading

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Citations

Jun 20, 2020·Archives of Pathology & Laboratory Medicine·Jonathan HenriksenLuis F Gonzalez-Cuyar
Aug 14, 2021·Frontiers in Molecular Biosciences·Keith A WhartonAleksandra Zuraw
Aug 27, 2021·Veterinary Pathology·Christof A BertramRobert Klopfleisch

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Software Mentioned

Aperio ImageScope DX
ImageScope DX
SAS

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