Evidence map›Paper›PMID 31823209›Full record

ArticleJournal of clinical monitoring and computing2020

Reliability of B-line quantification by different-level observers and a software algorithm using point-of-care lung ultrasound.

Ana Pičuljan, Marko Šustić, Gordana Brumini, Janja Kuharić, Alan Šustić

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Article in Journal of clinical monitoring and computing, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Review
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  4. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Ana PičuljanDepartment of Anesthesiology, Reanimatology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Rijeka, Br. Branchetta 20, Rijeka, 51000, Croatia.ORCID http://orcid.org/0000-0002-9982-2850
Marko ŠustićDepartment of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.ORCID http://orcid.org/0000-0001-8213-0578
Gordana BruminiDepartment of Basic Medical Science, Faculty of Health Studies, University of Rijeka, Rijeka, Croatia.ORCID http://orcid.org/0000-0003-2401-3212
Janja KuharićDepartment of Anesthesiology, Reanimatology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Rijeka, Br. Branchetta 20, Rijeka, 51000, Croatia.ORCID http://orcid.org/0000-0002-3591-0341
Alan ŠustićDepartment of Anesthesiology, Reanimatology, Intensive Care and Emergency Medicine, Faculty of Medicine, University of Rijeka, Br. Branchetta 20, Rijeka, 51000, Croatia. alan.sustic@uniri.hr.ORCID http://orcid.org/0000-0001-8393-4332

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quantification of B-lines on lung ultrasonographs is operator-dependent and considered a semi-quantitative method. To avoid this variability, we designed a software algorithm for counting B-lines. We compared the number of B-lines obtained in real-time by observers with three different levels of experience and by the software algorithm, and analyzed intra-rater variability in terms of the estimated number of B-lines in two successive examinations. Forty mechanically ventilated adult (≥ 18 years) intensive care unit patients were included in this prospective study. All patients underwent two consecutive ultrasound examinations for B-lines detection by three human observers (OB1 = high, OB2 = medium, OB3 = low level of experience) and by the software (OBS). Ultrasound scans were obtained on the anterior right and left thoracic side along the midclavicular line, in the second and fourth intercostal space; B-lines counting for each position lasted 10 s. To assess intra-observer variability, a second ultrasound scan was obtained 15-30 min after the first scan. For all lung zones, the intraclass correlation for B-lines counting between OB1 and OB2 was 0.663; between OB1 and OB3, 0.559; and between OB1 and OBS, 0.710. OBS had a better concordance coefficient (0.752) between the first and the second measurements than did the human observers. Our results show that the software algorithm for B-lines counting is a potentially promising alternative when observers have little lung ultrasound experience.

Indexed as

AlgorithmsPoint-of-Care SystemsAdultHumansLungObserver VariationProspective StudiesReproducibility of ResultsSoftwareUltrasonographyB-linesInter-observer reliabilityIntra-observer reliabilityLung ultrasonography

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Registered trials

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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.