Evidence map›Paper›PMID 31146267›Full record

ArticlePhysics in medicine and biology2019

MRI-based treatment planning for proton radiotherapy: dosimetric validation of a deep learning-based liver synthetic CT generation method.

Yingzi Liu, Yang Lei, Yinan Wang, Tonghe Wang, Lei Ren, Liyong Lin, Mark McDonald, Walter J Curran, Tian Liu, Jun Zhou and 1 more

Abstract read
In one paragraph

Article in Physics in medicine and biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. MedImg: An Integrated Database for Public Medical Images.Genomics, proteomics & bioinformatics · 2025
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  8. Review
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  13. Diagnostic performance of deep-learning-based virtual chromoendoscopy in gastric neoplasms.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024
    Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Synthetic CT in Carbon Ion Radiotherapy of the Abdominal Site.Bioengineering (Basel, Switzerland) · 2023
    Article
  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

11 authors.

Yingzi LiuDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Yang LeiDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Yinan WangDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Tonghe WangDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Lei RenDepartment of Radiation Oncology, Duke University, Durham, NC 27708, United States of America.
Liyong LinDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Mark McDonaldDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Walter J CurranDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Tian LiuDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Jun ZhouDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.
Xiaofeng YangDepartment of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States of America.

Funding

Multiparametric MRI-guided Prostate HDR Brachytherapy with Focal Tumor BoostR01CA215718 · NCI · EMORY UNIVERSITY · PI YANG, XIAOFENG · 2018 to 2022
$1.8M
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 CA184173NCI NIH HHS R01 CA215718
6 · The paper itself

Abstract

Magnetic resonance imaging (MRI) has been widely used in combination with computed tomography (CT) radiation therapy because MRI improves the accuracy and reliability of target delineation due to its superior soft tissue contrast over CT. The MRI-only treatment process is currently an active field of research since it could eliminate systematic MR-CT co-registration errors, reduce medical cost, avoid diagnostic radiation exposure, and simplify clinical workflow. The purpose of this work is to validate the application of a deep learning-based method for abdominal synthetic CT (sCT) generation by image evaluation and dosimetric assessment in a commercial proton pencil beam treatment planning system (TPS). This study proposes to integrate dense block into a 3D cycle-consistent generative adversarial networks (cycle GAN) framework in an effort to effectively learn the nonlinear mapping between MRI and CT pairs. A cohort of 21 patients with co-registered CT and MR pairs were used to test the deep learning-based sCT image quality by leave-one-out cross validation. The CT image quality, dosimetric accuracy and the distal range fidelity were rigorously checked, using side-by-side comparison against the corresponding original CT images. The average mean absolute error (MAE) was 72.87  ±  18.16 HU. The relative differences of the statistics of the PTV dose volume histogram (DVH) metrics between sCT and CT were generally less than 1%. Mean 3D gamma analysis passing rate of 1 mm/1%, 2 mm/2%, 3 mm/3% criteria with 10% dose threshold were 90.76%  ±  5.94%, 96.98%  ±  2.93% and 99.37%  ±  0.99%, respectively. The median, mean and standard deviation of absolute maximum range differences were 0.170 cm, 0.186 cm and 0.155 cm. The image similarity, dosimetric and distal range agreement between sCT and original CT suggests the feasibility of further development of an MRI-only workflow for liver proton radiotherapy.

Indexed as

Deep LearningCarcinoma, HepatocellularHumansImage Processing, Computer-AssistedLiver NeoplasmsMagnetic Resonance ImagingRadiography, AbdominalRadiotherapy DosageRadiotherapy Planning, Computer-AssistedReproducibility of ResultsRetrospective StudiesTomography, X-Ray Computed

Identifiers

PMID31146267
PMCPMC6635951

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.