Evidence map›Paper›PMID 39585556›Full record

ArticleJapanese journal of radiology2025

Generation of short-term follow-up chest CT images using a latent diffusion model in COVID-19.

Naoko Kawata, Yuma Iwao, Yukiko Matsuura, Takashi Higashide, Takayuki Okamoto, Yuki Sekiguchi, Masaru Nagayoshi, Yasuo Takiguchi, Takuji Suzuki, Hideaki Haneishi

Abstract read
In one paragraph

Article in Japanese journal of radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
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.

Naoko Kawata *Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba-Shi, Chiba, 260-8677, Japan. chumito_03@yahoo.co.jp.ORCID http://orcid.org/0000-0002-4083-4531
Yuma Iwao *Center for Frontier Medical Engineering, Chiba University, 1-33, Yayoi-Cho, Inage-Ku, Chiba-Shi, Chiba, 263-8522, Japan.
Yukiko MatsuuraDepartment of Respiratory Medicine, Chiba Aoba Municipal Hospital, 1273-2 Aoba-Cho, Chuo-Ku, Chiba-Shi, Chiba, 260-0852, Japan.
Takashi HigashideDepartment of Radiology, Chiba University Hospital, 1-8-1, Inohana, Chuo-Ku, Chiba-Shi, Chiba, 260-8677, Japan.
Takayuki OkamotoCenter for Frontier Medical Engineering, Chiba University, 1-33, Yayoi-Cho, Inage-Ku, Chiba-Shi, Chiba, 263-8522, Japan.
Yuki SekiguchiGraduate School of Science and Engineering, Chiba University, Chiba, 263-8522, Japan.
Masaru NagayoshiDepartment of Respiratory Medicine, Chiba Aoba Municipal Hospital, 1273-2 Aoba-Cho, Chuo-Ku, Chiba-Shi, Chiba, 260-0852, Japan.
Yasuo TakiguchiDepartment of Respiratory Medicine, Chiba Aoba Municipal Hospital, 1273-2 Aoba-Cho, Chuo-Ku, Chiba-Shi, Chiba, 260-0852, Japan.
Takuji SuzukiDepartment of Respirology, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-Ku, Chiba-Shi, Chiba, 260-8677, Japan.
Hideaki HaneishiCenter for Frontier Medical Engineering, Chiba University, 1-33, Yayoi-Cho, Inage-Ku, Chiba-Shi, Chiba, 263-8522, Japan.

Funding

Japan Society for the Promotion of Science 22K12836
6 · The paper itself

Abstract

purposeDespite a global decrease in the number of COVID-19 patients, early prediction of the clinical course for optimal patient care remains challenging. Recently, the usefulness of image generation for medical images has been investigated. This study aimed to generate short-term follow-up chest CT images using a latent diffusion model in patients with COVID-19. MATERIALS AND

methodsWe retrospectively enrolled 505 patients with COVID-19 for whom the clinical parameters (patient background, clinical symptoms, and blood test results) upon admission were available and chest CT imaging was performed. Subject datasets (n = 505) were allocated for training (n = 403), and the remaining (n = 102) were reserved for evaluation. The image underwent variational autoencoder (VAE) encoding, resulting in latent vectors. The information consisting of initial clinical parameters and radiomic features were formatted as a table data encoder. Initial and follow-up latent vectors and the initial table data encoders were utilized for training the diffusion model. The evaluation data were used to generate prognostic images. Then, similarity of the prognostic images (generated images) and the follow-up images (real images) was evaluated by zero-mean normalized cross-correlation (ZNCC), peak signal-to-noise ratio (PSNR), and structural similarity (SSIM). Visual assessment was also performed using a numerical rating scale.

resultsPrognostic chest CT images were generated using the diffusion model. Image similarity showed reasonable values of 0.973 ± 0.028 for the ZNCC, 24.48 ± 3.46 for the PSNR, and 0.844 ± 0.075 for the SSIM. Visual evaluation of the images by two pulmonologists and one radiologist yielded a reasonable mean score.

conclusionsThe similarity and validity of generated predictive images for the course of COVID-19-associated pneumonia using a diffusion model were reasonable. The generation of prognostic images may suggest potential utility for early prediction of the clinical course in COVID-19-associated pneumonia and other respiratory diseases.

Indexed as

COVID-19Radiographic Image Interpretation, Computer-AssistedRadiography, ThoracicTomography, X-Ray ComputedAdultAgedFemaleFollow-Up StudiesHumansLungMaleMiddle AgedRetrospective StudiesSARS-CoV-2Chest CT imagesCOVID-19Deep learningLatent diffusion modelPrognostic image generation

Identifiers

PMID39585556
PMCPMC11953082

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.