Evidence map›Paper›PMID 36572484›Full record

ArticleBMJ open respiratory research2022

Deep learning using multilayer perception improves the diagnostic acumen of spirometry: a single-centre Canadian study.

Amanda Mac, Tong Xu, Joyce K Y Wu, Natalia Belousova, Haruna Kitazawa, Nick Vozoris, Dmitry Rozenberg, Clodagh M Ryan, Shahrokh Valaee, Chung-Wai Chow

Open access · goldAbstract read
In one paragraph

Article in BMJ open respiratory research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. 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

10 authors at 2 institutions in 1 country.

Amanda MacMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.
Tong XuMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.
Joyce K Y WuMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0002-4113-2531
Natalia BelousovaMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0002-2237-4172
Haruna KitazawaMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0001-7234-1275
Nick VozorisMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0003-1670-1592
Dmitry RozenbergMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0001-8786-9152
Clodagh M RyanMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0002-2372-965X
Shahrokh ValaeeElectrical and Computer Engineeing, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0001-6254-1660
Chung-Wai ChowMedicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada Chung-Wai.Chow@uhn.ca.ORCID 0000-0001-9344-8522
University Health Network · CAUniversity of Toronto · CA

Funding

CIHR 415013
6 · The paper itself

Abstract

rationaleSpirometry and plethysmography are the gold standard pulmonary function tests (PFT) for diagnosis and management of lung disease. Due to the inaccessibility of plethysmography, spirometry is often used alone but this leads to missed or misdiagnoses as spirometry cannot identify restrictive disease without plethysmography. We aimed to develop a deep learning model to improve interpretation of spirometry alone.

methodsWe built a multilayer perceptron model using full PFTs from 748 patients, interpreted according to international guidelines. Inputs included spirometry (forced vital capacity, forced expiratory volume in 1 s, forced mid-expiratory flow

resultsAccuracies from the first 477 patients were similar when inputs included biometrics+spirometry+plethysmography (95%±3%) vs biometrics+spirometry (90%±2%). Model refinement with the next 271 patients improved accuracies with biometrics+pirometry (95%±2%) but no change for biometrics+spirometry+plethysmography (95%±2%). The final model significantly outperformed (94.67%±2.63%, p<0.01 for both) interpretation of 82 spirometry tests by the decision tree (75.61%±0.00%) and pulmonologists (66.67%±14.63%).

conclusionsDeep learning improves the diagnostic acumen of spirometry and classifies lung physiology better than pulmonologists with accuracies comparable to full PFTs.

Indexed as

Deep LearningCanadaHumansPerceptionRespiratory Function TestsSpirometryLung PhysiologyRespiratory Measurement

Identifiers

PMID36572484
PMCPMC9806081
OpenAlexW4312218770

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.