Evidence map›Paper›PMID 36373828›Full record

ArticleJournal of magnetic resonance imaging : JMRI2023

A Dual-Channel Deep Learning Approach for Lung Cavity Estimation From Hyperpolarized Gas and Proton MRI.

Joshua R Astley, Alberto M Biancardi, Helen Marshall, Paul J C Hughes, Guilhem J Collier, Laurie J Smith, James A Eaden, Rod Hughes, Jim M Wild, Bilal A Tahir

Open access · hybridAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Functional Pulmonary Imaging.Journal of magnetic resonance imaging : JMRI · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Magnetic resonance in medicine · 2025
    Article
  9. Review
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Joshua R AstleyPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.ORCID 0000-0002-6552-5436
Alberto M BiancardiPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.
Helen MarshallPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.ORCID 0000-0002-7425-1449
Paul J C HughesPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.ORCID 0000-0002-7979-5840
Guilhem J CollierPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.
Laurie J SmithPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.
James A EadenPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.
Rod HughesEarly Development Respiratory, AstraZeneca, Cambridge, UK.
Jim M WildPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.ORCID 0000-0002-7246-8660
Bilal A TahirPOLARIS, Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, UK.ORCID 0000-0003-0531-3519
University of Sheffield · GBInsigneo · GBAstraZeneca (United Kingdom) · GB

Funding

British Heart Foundation SP/14/6/31350Department of Health NIHR-RP-R3-12-027Medical Research Council MR/M008894/1
6 · The paper itself

Abstract

backgroundHyperpolarized gas MRI can quantify regional lung ventilation via biomarkers, including the ventilation defect percentage (VDP). VDP is computed from segmentations derived from spatially co-registered functional hyperpolarized gas and structural proton ( PURPOSE: We hypothesized that a DL-based dual-channel approach, leveraging both STUDY TYPE: Retrospective. POPULATION: A total of 480 corresponding FIELD STRENGTH/SEQUENCE: 1.5-T, three-dimensional (3D) spoiled gradient-recalled ASSESSMENT: We developed a multimodal DL approach, integrating STATISTICAL TESTS: Friedman tests with post hoc Bonferroni correction for multiple comparisons compared single-channel and dual-channel DL approaches using Dice similarity coefficient (DSC), average boundary Hausdorff distance (average HD), and relative error (XOR) metrics. Bland-Altman analysis and paired t-tests compared manual and DL-generated VDPs. A P value < 0.05 was considered statistically significant.

resultsThe dual-channel approach significantly outperformed single-channel approaches, achieving a median (range) DSC, average HD, and XOR of 0.967 (0.867-0.978), 1.68 mm (37.0-0.778), and 0.066 (0.246-0.045), respectively. DL-generated VDPs were statistically indistinguishable from manually generated VDPs (P = 0.710). DATA

conclusionOur dual-channel approach generated LCEs, which could be integrated with ventilated lung segmentations to produce biomarkers such as the VDP without manual intervention. EVIDENCE LEVEL: 4. TECHNICAL EFFICACY: Stage 1.

Indexed as

Deep LearningProtonsBiomarkersFemaleHumansLungMagnetic Resonance ImagingMaleRetrospective StudiesBiomarkersProtonsdeep learninghyperpolarized gas MRIpulmonary MRIsegmentation

Identifiers

PMID36373828
PMCPMC10947587
OpenAlexW4308952051

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.