Evidence map›Paper›PMID 27957516›Full record

ArticleEuropean journal of radiology open2016

Standard-dose vs. low-dose CT protocols in the evaluation of localized lung lesions: Capability for lesion characterization-iLEAD study.

Takeshi Kubo, Yoshiharu Ohno, Daisuke Takenaka, Mizuki Nishino, Shiva Gautam, Kazuro Sugimura, Hans Ulrich Kauczor, Hiroto Hatabu, iLEAD study group

Abstract read
In one paragraph

Article in European journal of radiology open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Observational
  9. Article
  10. A Task-dependent Investigation on Dose and Texture in CT Image Reconstruction.IEEE transactions on radiation and plasma medical sciences · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Imaging Cancer Metabolism.Biomolecules & therapeutics · 2018
    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

9 authors.

Takeshi KuboDepartment of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
Yoshiharu OhnoDepartment of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
Daisuke TakenakaDepartment of Radiology, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan.
Mizuki NishinoDepartment of Radiology, Dana Farber Cancer Institute, 44 Binney Street, Boston, MA 02115, United States.
Shiva GautamDepartments of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, United States.
Kazuro SugimuraDepartment of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
Hans Ulrich KauczorDiagnostic and Interventional Radiology, University Clinic Heidelberg, Im Neuenheimer Feld 110, D-69120 Heidelberg, Germany.
Hiroto HatabuDepartment of Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States.
iLEAD study group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the lesion characterization capability by low dose CT for localized lung lesions in comparison with standard dose CT. SUBJECTS AND

methodsApproval for this study was granted by our Institutional Review Board. Fifty-two consecutive patients (36 males and 16 females, median age of 71 years.) who had CT examinations for evaluation of lung lesions comprise the study population. Two chest CT scans were performed with current time product of 50 and 150 mAs at 120 kVp, with the same scan length with a 16 detector-row CT scanner. Three readers evaluated 52 target lesions and assigned an overall impression score to each target lesion, using a 5 point scale from 1 (definitely benign) to 5 (definitely malignant). Six features of the lesions including lesion type, margin characteristics, calcification, lobulation, speculation, and pleural indentation were also reported with 5-point scales. The weighted kappa analyses and receiver operating characteristic analysis were used for analysis.

resultsThe mean kappa value between low-and standard-dose CT was 0.82 for overall impression of the lesions, showing almost perfect agreement. Area under the curve of low-dose CT (Az = 0.74) had no significant difference from that of standard-dose CT (Az = 0.74) (p = 0.61). The kappa values for six lesion features ranged from 0.45 to 0.83, showing moderate to almost perfect agreement.

conclusionLesion characterization capability by low-dose CT images was comparable to that by standard-dose CT images and therefore sufficient for evaluation of localized lung lesions.

Indexed as

Chest CTLung massesLung nodulesRadiation dose reduction

Identifiers

PMID27957516
PMCPMC5144111

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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.