Evidence map›Paper›PMID 42156667›Full record

ArticleJapanese journal of radiology2026

Deep learning-based motion correction: cardiac motion artifact and image quality improvements on chest CT.

Yoshiyuki Ozawa, Daisuke Takenaka, Masahiko Nomura, Takahiro Ueda, Hirona Kimata, Yuya Ito, Kenji Fujii, Naruomi Akino, Takeshi Yoshikawa, Masahiro Endo and 1 more

Erratum issuedAbstract read
In one paragraph

Article in Japanese journal of radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Yoshiyuki OzawaDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0002-8252-1947
Daisuke TakenakaDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0002-9432-7180
Masahiko NomuraDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0003-1931-8740
Takahiro UedaDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0003-2577-3619
Hirona KimataCanon Medical Systems Corporation, Otawara, Tochigi, Japan.ORCID http://orcid.org/0009-0002-9959-8235
Yuya ItoCanon Medical Systems Corporation, Otawara, Tochigi, Japan.ORCID http://orcid.org/0000-0002-1292-3166
Kenji FujiiCanon Medical Systems Corporation, Otawara, Tochigi, Japan.ORCID http://orcid.org/0000-0001-6603-6362
Naruomi AkinoCanon Medical Systems Corporation, Otawara, Tochigi, Japan.ORCID http://orcid.org/0000-0002-7413-2095
Takeshi YoshikawaDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0001-5560-5371
Masahiro EndoDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID http://orcid.org/0000-0002-2484-5839
Yoshiharu OhnoDepartment of Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan. yohno@fujita-hu.ac.jp.ORCID http://orcid.org/0000-0002-4431-1084

Funding

Canon Medical Systems Corporation Canon Medical Systems CorporationSmoking Research Foundation Smoking Research Foundation
6 · The paper itself

Abstract

purposeSince the clinical application of computed tomography (CT), cardiac and respiratory motion artifacts have caused decreased image quality and reduced detection or quantitative or qualitative evaluation of lung parenchymal or vascular abnormalities on chest CT with lung window settings in patients with pulmonary diseases. Recently, a deep learning (DL)-based motion correction algorithm (CLEAR Motion) has been developed and clinically used for chest CT. We hypothesized that CLEAR Motion can significantly reduce motion artifacts on chest CT examinations relative to conventional chest CT images reconstructed without CLEAR Motion. The purpose of this study was to determine the utility of CLEAR Motion for image quality improvement in chest CT with lung window settings in patients with various pulmonary diseases. MATERIALS AND

methodsFifty-six consecutive patients with various thoracic diseases underwent non-electrocardiogram-gated chest helical CT examination using a 320-detector row CT and underwent reconstruction using the conventional reconstruction method and CLEAR Motion. To compare the quantitative image quality, the cardio-pulmonary edge distance (CPED) and slope (CPES) were measured on each CT scan in the axial plane. Comparing cardiac motion reduction capability, overall image quality, cardiac motion artifact, and region conspicuity were visually assessed in the lung window setting on the axial, coronal, and sagittal planes. The paired t-test and Wilcoxon signed-rank test were then performed.

resultsThe CPEDs and CPESs of the entire lung and left lung on CT with CLEAR Motion were significantly superior to those of CT without CLEAR Motion (p < 0.001). The overall image quality, cardiac motion artifact, and region conspicuity on CT with CLEAR Motion were significantly higher than those without CLEAR Motion on each plane (p < 0.001).

conclusionThe DL-based motion correction algorithm named as 'CLEAR Motion' has a potential to improve image quality on chest CT with lung window setting in patients with pulmonary diseases.

Indexed as

ArtifactsDeep LearningHeartLung DiseasesRadiographic Image EnhancementRadiographic Image Interpretation, Computer-AssistedRadiography, ThoracicTomography, X-Ray ComputedAdultAgedAged, 80 and overAlgorithmsFemaleHumansMaleMiddle AgedArtificial intelligenceCTLungMotion correction

Identifiers

PMID42156667
PMCPMC13525956

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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.