Evidence map›Paper›PMID 33361574›Full record

ArticlePhysics in medicine and biology2021

4D radiomics: impact of 4D-CBCT image quality on radiomic analysis.

Zeyu Zhang, Mi Huang, Zhuoran Jiang, Yushi Chang, Jordan Torok, Fang-Fang Yin, Lei Ren

Abstract read
In one paragraph

Article in Physics in medicine and biology, 2021. 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
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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

7 authors.

Zeyu ZhangDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.ORCID 0000-0002-7796-2887
Mi HuangDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.
Zhuoran JiangDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.
Yushi ChangDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.ORCID 0000-0001-6566-0796
Jordan TorokDepartment of Radiation Oncology, University of Pittsburgh Medical Center, 5150 Centre Ave, Pittsburgh, PA 15232, United States of America.
Fang-Fang YinDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.
Lei RenDepartment of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, NC, 27710, United States of America.

Funding

Hybrid virtual-MRI/CBCT: A new paradigm for image guidance in liver SBRTR01EB028324 · NIBIB · UNIVERSITY OF MARYLAND BALTIMORE · PI REN, LEI, YIN, FANG-FANG · 2019 to 2022
$2.1M
A Limited-angle Intra-fractional Verification (LIVE) System for SBRT TreatmentsR01CA184173 · NCI · DUKE UNIVERSITY · PI REN, LEI, YIN, FANG-FANG · 2015 to 2018
$1.5M
NCI NIH HHS R01 CA184173NIBIB NIH HHS R01 EB028324
6 · The paper itself

Abstract

purposeTo investigate the impact of 4D-CBCT image quality on radiomic analysis and the efficacy of using deep learning based image enhancement to improve the accuracy of radiomic features of 4D-CBCT. MATERIAL AND

methodsIn this study, 4D-CT data from 16 lung cancer patients were obtained. Digitally reconstructed radiographs (DRRs) were simulated from the 4D-CT, and then used to reconstruct 4D CBCT using the conventional FDK (Feldkamp et al 1984 J. Opt. Soc. Am. A 1 612-9) algorithm. Different projection numbers (i.e. 72, 120, 144, 180) and projection angle distributions (i.e. evenly distributed and unevenly distributed using angles from real 4D-CBCT scans) were simulated to generate the corresponding 4D-CBCT. A deep learning model (TecoGAN) was trained on 10 patients and validated on 3 patients to enhance the 4D-CBCT image quality to match with the corresponding ground-truth 4D-CT. The remaining 3 patients with different tumor sizes were used for testing. The radiomic features in 6 different categories, including histogram, GLCM, GLRLM, GLSZM, NGTDM, and wavelet, were extracted from the gross tumor volumes of each phase of original 4D-CBCT, enhanced 4D-CBCT, and 4D-CT. The radiomic features in 4D-CT were used as the ground-truth to evaluate the errors of the radiomic features in the original 4D-CBCT and enhanced 4D-CBCT. Errors in the original 4D-CBCT demonstrated the impact of image quality on radiomic features. Comparison between errors in the original 4D-CBCT and enhanced 4D-CBCT demonstrated the efficacy of using deep learning to improve the radiomic feature accuracy.

results4D-CBCT image quality can substantially affect the accuracy of the radiomic features, and the degree of impact is feature-dependent. The deep learning model was able to enhance the anatomical details and edge information in the 4D-CBCT as well as removing other image artifacts. This enhancement of image quality resulted in reduced errors for most radiomic features. The average reduction of radiomics errors for 3 patients are 20.0%, 31.4%, 36.7%, 50.0%, 33.6% and 11.3% for histogram, GLCM, GLRLM, GLSZM, NGTDM and Wavelet features. And the error reduction was more significant for patients with larger tumors. The findings were consistent across different respiratory phases, projection numbers, and angle distributions.

conclusionsThe study demonstrated that 4D-CBCT image quality has a significant impact on the radiomic analysis. The deep learning-based augmentation technique proved to be an effective approach to enhance 4D-CBCT image quality to improve the accuracy of radiomic analysis.

Indexed as

Cone-Beam Computed TomographyFour-Dimensional Computed TomographyAlgorithmsArtifactsHumansImage Processing, Computer-AssistedLung NeoplasmsQuality Control

Identifiers

PMID33361574
PMCPMC8285075

What OpenQuestion holds

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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.