Evidence map›Paper›PMID 35286578›Full record

ArticleJapanese journal of radiology2022

Unenhanced abdominal low-dose CT reconstructed with deep learning-based image reconstruction: image quality and anatomical structure depiction.

Tetsuro Kaga, Yoshifumi Noda, Takayuki Mori, Nobuyuki Kawai, Toshiharu Miyoshi, Fuminori Hyodo, Hiroki Kato, Masayuki Matsuo

Abstract read
In one paragraph

Article in Japanese journal of radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. The Evolution and Clinical Impact of Deep Learning Technologies in Breast MRI.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2025
    Review
  4. Observational
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Current State of Artificial Intelligence in Clinical Applications for Head and Neck MR Imaging.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2023
    Review
  12. Review
  13. Article
  14. Imaging Findings of Pediatric Rheumatic Disorders: JIA in the PRINTO Era and Autoimmune Interferonopathies.Pediatrics international : official journal of the Japan Pediatric Society
    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

8 authors.

Tetsuro KagaDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
Yoshifumi NodaDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan. noda1031@gifu-u.ac.jp.ORCID http://orcid.org/0000-0003-3611-4790
Takayuki MoriDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
Nobuyuki KawaiDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
Toshiharu MiyoshiDepartment of Radiology Services, Gifu University Hospital, 1-1 Yanagido, Gifu, 501-1194, Japan.
Fuminori HyodoDepartment of Radiology, Frontier Science for Imaging, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
Hiroki KatoDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
Masayuki MatsuoDepartment of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the utility of deep learning-based image reconstruction (DLIR) algorithm in unenhanced abdominal low-dose CT (LDCT). MATERIALS AND

methodsTwo patient groups were included in this prospective study: 58 consecutive patients who underwent unenhanced abdominal standard-dose CT reconstructed with hybrid iterative reconstruction (SDCT group) and 48 consecutive patients who underwent unenhanced abdominal LDCT reconstructed with high strength level of DLIR (LDCT group). The background noise and signal-to-noise ratio (SNR) of the liver, pancreas, spleen, kidney, abdominal aorta, inferior vena cava, and portal vein were calculated. Two radiologists qualitatively assessed the overall image noise, overall image quality, and abdominal anatomical structures depiction. Quantitative and qualitative parameters and size-specific dose estimates (SSDE) were compared between SDCT and LDCT groups.

resultsThe background noise was lower in LDCT group than in SDCT group (P = 0.02). SNRs were higher in LDCT group than in SDCT group (P < 0.001-0.004) except for the liver. Overall image noise was superior in LDCT group than in SDCT group (P < 0.001). Overall image quality was not different between SDCT and LDCT groups (P = 0.25-0.26). Depiction of almost all abdominal anatomical structures was equal to or better in LDCT group than in SDCT group (P < 0.001-0.88). The SSDE was lower in LDCT group (4.0 mGy) than in SDCT group (20.6 mGy) (P < 0.001).

conclusionsDLIR facilitates substantial radiation dose reduction of > 75% and significantly reduces background noise. DLIR can maintain image quality and anatomical structure depiction in unenhanced abdominal LDCT.

Indexed as

Deep LearningAlgorithmsHumansImage Processing, Computer-AssistedRadiation DosageRadiographic Image Interpretation, Computer-AssistedSignal-To-Noise RatioTomography, X-Ray ComputedAbdominal anatomical structures depictionCT dose-index volumeDeep learning-based image reconstructionSize-specific dose estimatesUnenhanced abdominal low-dose CT

Identifiers

PMID35286578
PMCPMC9252942

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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.