Evidence map›Paper›PMID 33343994›Full record

ArticleJournal of pathology informatics2020

(Re) Defining the High-Power Field for Digital Pathology.

David Kim, Liron Pantanowitz, Peter Schüffler, Dig Vijay Kumar Yarlagadda, Orly Ardon, Victor E Reuter, Meera Hameed, David S Klimstra, Matthew G Hanna

Abstract read
In one paragraph

Article in Journal of pathology informatics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Review
  7. Article
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  15. Review
  16. Defining the area of mitoses counting in invasive breast cancer using whole slide image.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2022
    Article
  17. Integrating digital pathology into clinical practice.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2022
    Review
  18. Counting mitoses: SI(ze) matters!Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2021
    Review
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

David KimDepartment of Pathology and Laboratory Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA.
Liron PantanowitzDepartment of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Peter SchüfflerDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Dig Vijay Kumar YarlagaddaDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Orly ArdonDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Victor E ReuterDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Meera HameedDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
David S KlimstraDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Matthew G HannaDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

backgroundThe microscope high-power field (HPF) is the cornerstone for histopathology diagnostic evaluation such as the quantification of mitotic figures, lymphocytes, and tumor grading. With traditional light microscopy, HPFs are typically evaluated by quantifying histologic events in 10 fields of view at × 400 magnification. In the era of digital pathology, new variables are introduced that may affect HPF evaluation. The aim of this study was to determine the parameters that influence HPF in whole slide images (WSIs). MATERIALS AND

methodsGlass slides scanned on various devices (Leica's Aperio GT450, AT2, and ScanScope XT; Philips UltraFast Scanner; Hamamatsu's Nanozoomer 2.0HT; and 3DHistech's P1000) were compared to acquired digital slides reviewed on each vendor's respective WSI viewer software (e.g., Aperio ImageScope, ImageScope DX, Philips IMS, 3DHistech CaseViewer, and Hamamatsu NDP.view) and an in-house developed vendor-agnostic viewer. WSIs were reviewed at "×40" equivalent HPF on different sized monitors with varying display resolutions (1900 × 1080-4500 × 3000) and aspect ratios (e.g., Food and Drug Administration [FDA]-cleared 27" Philips PS27QHDCR, FDA-cleared 24" Dell MR2416, 24" Hewlett Packard Z24n G2, and 28" Microsoft Surface Studio). Digital and microscopic HPF areas were calculated and compared.

resultsA significant variation of HPF area occurred between differing monitor size and display resolutions with minor differences between WSI viewers. No differences were identified by scanner or WSIs scanned at different resolutions (e.g., 0.5, 0.25, 0.24, and 0.12 μm/pixel).

conclusionGlass slide HPF at × 400 magnification with conventional light microscopy was not equivalent to "×40" digital HPF areas. Digital HPF quantification may vary due to differences in the tissue area displayed by monitor sizes, display resolutions, and WSI viewers but not by scanner or scanning resolution. These findings will need to be further clinically validated with potentially new digital metrics for evaluation.

Indexed as

Digital pathologygradehigh-power fieldmitosiswhole slide imaging

Identifiers

PMID33343994
PMCPMC7737490

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.