Evidence map›Paper›PMID 29959539›Full record

ArticleJournal of medical systems2018

Feature Selection for Automatic Tuberculosis Screening in Frontal Chest Radiographs.

Szilárd Vajda, Alexandros Karargyris, Stefan Jaeger, K C Santosh, Sema Candemir, Zhiyun Xue, Sameer Antani, George Thoma

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In one paragraph

Article in Journal of medical systems, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

8 authors.

Szilárd VajdaCentral Washington University, Ellensburg, WA, USA. szilard.vajda@cwu.edu.ORCID http://orcid.org/0000-0003-0820-3761
Alexandros KarargyrisIBM Almaden Research, San Jose, CA, USA.
Stefan JaegerNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
K C SantoshUniversity of South Dakota, Vermillion, SD, USA.
Sema CandemirNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
Zhiyun XueNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
Sameer AntaniNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
George ThomaNational Library of Medicine, National Institutes of Health, Bethesda, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To detect pulmonary abnormalities such as Tuberculosis (TB), an automatic analysis and classification of chest radiographs can be used as a reliable alternative to more sophisticated and technologically demanding methods (e.g. culture or sputum smear analysis). In target areas like Kenya TB is highly prevalent and often co-occurring with HIV combined with low resources and limited medical assistance. In these regions an automatic screening system can provide a cost-effective solution for a large rural population. Our completely automatic TB screening system is processing the incoming CXRs (chest X-ray) by applying image preprocessing techniques to enhance the image quality followed by an adaptive segmentation based on model selection. The delineated lung regions are described by a multitude of image features. These characteristics are than optimized by a feature selection strategy to provide the best description for the classifier, which will later decide if the analyzed image is normal or abnormal. Our goal is to find the optimal feature set from a larger pool of generic image features, -used originally for problems such as object detection, image retrieval, etc. For performance evaluation measures such as under the curve (AUC) and accuracy (ACC) were considered. Using a neural network classifier on two publicly available data collections, -namely the Montgomery and the Shenzhen dataset, we achieved the maximum area under the curve and accuracy of 0.99 and 97.03%, respectively. Further, we compared our results with existing state-of-the-art systems and to radiologists' decision.

Indexed as

AlgorithmsRadiographyAutomationHumansMass ScreeningSputumTuberculosisAutomatic chest x-ray analysisAutomatic TB screeningChest x-rayFeature selectionHOGNeural networksTuberculosis

Identifiers

What OpenQuestion holds

Textmetadata
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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.