Evidence map›Paper›PMID 28966838›Full record

ArticleJournal of pathology informatics2017

Impact of Altering Various Image Parameters on Human Epidermal Growth Factor Receptor 2 Image Analysis Data Quality.

Liron Pantanowitz, Chi Liu, Yue Huang, Huazhang Guo, Gustavo K Rohde

Open access · goldAbstract read
In one paragraph

Article in Journal of pathology informatics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 42% of its field
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

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

  1. Guideline
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  5. Artificial intelligence applied to breast pathology.Virchows Archiv : an international journal of pathology · 2022
    Review
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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

5 authors at 4 institutions in 2 countries.

Liron PantanowitzDepartment of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Chi LiuDepartment of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
Yue HuangSchool of Information Science and Engineering, Xiamen University, Xiamen, China.
Huazhang GuoDepartment of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Gustavo K RohdeDepartment of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA.
University of Pittsburgh Medical Center · USCarnegie Mellon University · USUniversity of Virginia · USXiamen University · CN

Funding

Utility of Effusion Cytology and Image Analysis in the Diagnosis of MesotheliomaR21CA188938 · NCI · UNIVERSITY OF VIRGINIA · PI ROHDE, GUSTAVO KUNDE · 2014 to 2015
$193k
NCI NIH HHS R21 CA188938
6 · The paper itself

Abstract

introductionThe quality of data obtained from image analysis can be directly affected by several preanalytical (e.g., staining, image acquisition), analytical (e.g., algorithm, region of interest [ROI]), and postanalytical (e.g., computer processing) variables. Whole-slide scanners generate digital images that may vary depending on the type of scanner and device settings. Our goal was to evaluate the impact of altering brightness, contrast, compression, and blurring on image analysis data quality.

methodsSlides from 55 patients with invasive breast carcinoma were digitized to include a spectrum of human epidermal growth factor receptor 2 (HER2) scores analyzed with Visiopharm (30 cases with score 0, 10 with 1+, 5 with 2+, and 10 with 3+). For all images, an ROI was selected and four parameters (brightness, contrast, JPEG2000 compression, out-of-focus blurring) then serially adjusted. HER2 scores were obtained for each altered image.

resultsHER2 scores decreased with increased illumination, higher compression ratios, and increased blurring. HER2 scores increased with greater contrast. Cases with HER2 score 0 were least affected by image adjustments.

conclusionThis experiment shows that variations in image brightness, contrast, compression, and blurring can have major influences on image analysis results. Such changes can result in under- or over-scoring with image algorithms. Standardization of image analysis is recommended to minimize the undesirable impact such variations may have on data output.

Indexed as

Calibrationdigital pathologyerrorhuman epidermal growth factor receptor 2image analysisinformaticswhole-slide imaging

Identifiers

PMID28966838
PMCPMC5609390
OpenAlexW2752808262

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.