Evidence map›Paper›PMID 34549324›Full record

ArticleEuropean radiology2022

Effect of CT image acquisition parameters on diagnostic performance of radiomics in predicting malignancy of pulmonary nodules of different sizes.

Yan Xu, Lin Lu, Shawn H Sun, Lin-Ning E, Wei Lian, Hao Yang, Lawrence H Schwartz, Zheng-Han Yang, Binsheng Zhao

Abstract read
In one paragraph

Article in European radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

9 authors.

Yan Xu *Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
Lin Lu *Department of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, 630 West 168th Street, New York, NY, 10032, USA. ll2860@cumc.columbia.edu.ORCID http://orcid.org/0000-0001-7743-7022
Shawn H SunDepartment of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, 630 West 168th Street, New York, NY, 10032, USA.
Lin-Ning EDepartment of Radiology, Shanxi DAYI Hospital, 99 Longcheng Street, Taiyuan, 030032, Shanxi, China.
Wei LianDepartment of CT, Third People's Hospital, 75 Juchang Street, Yancheng, 224001, Jiangsu, China.
Hao YangDepartment of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, 630 West 168th Street, New York, NY, 10032, USA.
Lawrence H SchwartzDepartment of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, 630 West 168th Street, New York, NY, 10032, USA.
Zheng-Han YangDepartment of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
Binsheng ZhaoDepartment of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, 630 West 168th Street, New York, NY, 10032, USA.

Funding

Integrating Radiomics into S0819 and Lung-MAP, Biomarker Driven Clinical Trials for Lung CancerU01CA225431 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI SCHWARTZ, LAWRENCE H, ZHAO, BINSHENG · 2018 to 2022
$3.1M
Natural Science Foundation of Beijing Municipality 7182040NCI NIH HHS U01 CA225431
6 · The paper itself

Abstract

objectivesTo investigate the effect of CT image acquisition parameters on the performance of radiomics in classifying benign and malignant pulmonary nodules (PNs) with respect to nodule size.

methodsWe retrospectively collected CT images of 696 patients with PNs from March 2015 to March 2018. PNs were grouped by nodule diameter: T1a (diameter ≤ 1.0 cm), T1b (1.0 cm < diameter ≤ 2.0 cm), and T1c (2.0 cm < diameter ≤ 3.0 cm). CT images were divided into four settings according to slice-thickness-convolution-kernels: setting 1 (slice thickness/reconstruction type: 1.25 mm sharp), setting 2 (5 mm sharp), setting 3 (5 mm smooth), and random setting. We created twelve groups from two interacting conditions. Each PN was segmented and had 1160 radiomics features extracted. Non-redundant features with high predictive ability in training were selected to build a distinct model under each of the twelve subsets.

resultsThe performance (AUCs) on predicting PN malignancy were as follows: T1a group: 0.84, 0.64, 0.68, and 0.68; T1b group: 0.68, 0.74, 0.76, and 0.70; T1c group: 0.66, 0.64, 0.63, and 0.70, for the setting 1, setting 2, setting 3, and random setting, respectively. In the T1a group, the AUC of radiomics model in setting 1 was statistically significantly higher than all others; In the T1b group, AUCs of radiomics models in setting 3 were statistically significantly higher than some; and in the T1c group, there were no statistically significant differences among models.

conclusionsFor PNs less than 1 cm, CT image acquisition parameters have a significant influence on diagnostic performance of radiomics in predicting malignancy, and a model created using images reconstructed with thin section and a sharp kernel algorithm achieved the best performance. For PNs larger than 1 cm, CT reconstruction parameters did not affect diagnostic performance substantially. KEY POINTS: • CT image acquisition parameters have a significant influence on the diagnostic performance of radiomics in pulmonary nodules less than 1 cm. • In pulmonary nodules less than 1 cm, a radiomics model created by using images reconstructed with thin section and a sharp kernel algorithm achieved the best diagnostic performance. • For PNs larger than 1 cm, CT image acquisition parameters do not affect diagnostic performance substantially.

Indexed as

Lung NeoplasmsMultiple Pulmonary NodulesArea Under CurveHumansRetrospective StudiesTomography, X-Ray ComputedCarcinoma, non-small-cell lungDiagnostic screening programsMachine learningTomography, x-ray computed

Identifiers

PMID34549324
PMCPMC9136691

What OpenQuestion holds

Textmetadata
LicenceTDM
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.