Evidence map›Paper›PMID 25941190›Full record

ArticleBMJ open2015

The feasibility of using manual segmentation in a multifeature computer-aided diagnosis system for classification of skin lesions: a retrospective comparative study.

Wen-Yu Chang, Adam Huang, Yin-Chun Chen, Chi-Wei Lin, John Tsai, Chung-Kai Yang, Yin-Tseng Huang, Yi-Fan Wu, Gwo-Shing Chen

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Review
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.

Wen-Yu ChangGraduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan Department of Dermatology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan.ORCID http://orcid.org/0000-0002-5376-9409
Adam HuangResearch Center for Adaptive Data Analysis, Center for Biomarkers and Translational Medicine, and Graduate Institute of Biomedical Engineering, National Central University, Jhongli, Taiwan.
Yin-Chun ChenDepartment of Dermatology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
Chi-Wei LinDepartment of Family Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan Graduate Institute of Adult Education, National Kaohsiung Normal University, Kaohsiung, Taiwan.
John TsaiDepartment of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan Chiu Kun-Hsing Dermatology Clinic, Kaohsiung, Taiwan.
Chung-Kai YangHuang Yung-Hsueh Clinic, Changhua, Taiwan.
Yin-Tseng HuangHealth Management Center, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
Yi-Fan WuDepartment of Family Medicine, Taipei City Hospital, Renai Branch, Taipei, Taiwan Department of Psychology, National Chengchi University, Taipei, Taiwan.
Gwo-Shing ChenDepartment of Dermatology, Kaohsiung Medical University Hospital. Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate the feasibility of manual segmentation by users of different backgrounds in a previously developed multifeature computer-aided diagnosis (CADx) system to classify melanocytic and non-melanocytic skin lesions based on conventional digital photographic images.

methodsIn total, 347 conventional photographs of melanocytic and non-melanocytic skin lesions were retrospectively reviewed, and manually segmented by two groups of physicians, dermatologists and general practitioners, as well as by an automated segmentation software program, JSEG. The performance of CADx based on inputs from these two groups of physicians and that of the JSEG program was compared using feature agreement analysis.

resultsThe estimated area under the receiver operating characteristic curve for classification of benign or malignant skin lesions based were comparable on individual segmentation by the gold standard (0.893, 95% CI 0.856 to 0.930), dermatologists (0.886, 95% CI 0.863 to 0.908), general practitioners (0.883, 95% CI 0.864 to 0.903) and JSEG (0.856, 95% CI 0.812 to 0.899). The agreement in the malignancy probability scores among the physicians was excellent (intraclass correlation coefficient: 0.91). By selecting an optimal cut-off value of malignancy probability score, the sensitivity and specificity were 80.07% and 81.47% for dermatologists and 79.90% and 80.20% for general practitioners.

conclusionsThis study suggests that manual segmentation by general practitioners is feasible in the described CADx system for classifying benign and malignant skin lesions.

Indexed as

AdultAgedAlgorithmsDecision Support TechniquesDiagnosis, DifferentialFeasibility StudiesFemaleHumansImage Interpretation, Computer-AssistedMaleMiddle AgedObserver VariationPhotographyRetrospective StudiesROC CurveSensitivity and Specificity

Identifiers

PMID25941190
PMCPMC4420958

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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.