Evidence map›Paper›PMID 34150605›Full record

ArticleFrontiers in oncology2021

A Comparison of the Distortion in the Same Field MRI and MR-Linac System With a 3D Printed Phantom.

Xuechun Liu, Zhenjiang Li, Yi Rong, Minsong Cao, Hongyu Li, Chuntao Jia, Liting Shi, Weizhao Lu, Guanzhong Gong, Yong Yin and 1 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. 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 at 5 institutions in 2 countries.

Xuechun LiuMedical Engineering and Technology Research Center, Department of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China.
Zhenjiang LiDepartment of Radiation Physics, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.
Yi RongDepartment of Radiation Oncology, University of California Davis Comprehensive Cancer Center, Sacramento, CA, United States.
Minsong CaoDepartment of Radiation Oncology, David Geffen School of Medicine, University of California, Los Angeles, CA, United States.
Hongyu LiAcademy of Marine Science and Engineering, Shandong University of Science and Technology, Qingdao, China.
Chuntao JiaAcademy of Marine Science and Engineering, Shandong University of Science and Technology, Qingdao, China.
Liting ShiMedical Engineering and Technology Research Center, Department of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China.
Weizhao LuMedical Engineering and Technology Research Center, Department of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China.
Guanzhong GongDepartment of Radiation Physics, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.
Yong YinDepartment of Radiation Physics, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.
Jianfeng QiuMedical Engineering and Technology Research Center, Department of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China.
Shandong First Medical University · CNShandong University of Science and Technology · CNShandong Tumor Hospital · CNUC Davis Comprehensive Cancer CenterUniversity of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA 3D printed geometric phantom was developed that can be scanned with computed tomography (CT) and magnetic resonance imaging (MRI) to measure the geometric distortion and determine the relevant dose changes. MATERIALS AND

methodsA self-designed 3D printed photosensitive resin phantom was used, which adopts grid-like structures and has 822 1 cm

resultsThe distortion increases gradually from the center to the outside. The distortion range is 0.79 ± 0.40 mm for the Unity, 1.31 ± 0.56 mm for the GE Signa HDe, and 2.82 ± 1.48 mm for the GE Discovery-sim 750. Additionally, the geometric distortion slightly affects the actual planning dose of the radiotherapy.

conclusionGeometric distortion increases gradually from the center to the outside. The distortion values of the Unity were smaller than those of the GE Signa HDe, and the Unity has the smallest geometric distortion. Finally, the Unity's dose variation best matched with the standard treatment plan.

Indexed as

3D printed phantomgeometric distortionmagnetic resonance imagingmagnetic resonance imaging-linacradiotherapy

Identifiers

PMID34150605
PMCPMC8209415
OpenAlexW3168540018

What OpenQuestion holds

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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.