Evidence map›Paper›PMID 29467012›Full record

ArticleBMC cancer2018

Structural and advanced imaging in predicting MGMT promoter methylation of primary glioblastoma: a region of interest based analysis.

Yu Han, Lin-Feng Yan, Xi-Bin Wang, Ying-Zhi Sun, Xin Zhang, Zhi-Cheng Liu, Hai-Yan Nan, Yu-Chuan Hu, Yang Yang, Jin Zhang and 7 more

Abstract read
In one paragraph

Article in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 4 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

57 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  4. Clinically Relevant Imaging Features forAJNR. American journal of neuroradiology · 2018
    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

17 authors.

Yu HanDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Lin-Feng YanDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Xi-Bin WangDepartment of Medical Image Diagnosis, Hanzhong Central Hospital, Hanzhong, Shaanxi, 723000, China.
Ying-Zhi SunDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Xin ZhangDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Zhi-Cheng LiuDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Hai-Yan NanDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Yu-Chuan HuDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Yang YangDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Jin ZhangDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Ying YuDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Qian SunDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Qiang TianDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Bo HuDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Gang XiaoDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China.
Wen WangDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China. wangwen@fmmu.edu.cn.ORCID 0000-0001-6473-4888
Guang-Bin CuiDepartment of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, the Military Medical University of PLA Airforce (Fourth Military Medical University), 569 Xinsi Road, Xi'an, 710038, China. cgbtd@126.com.

Funding

Innovation and Development Foundation of Tangdu Hospital 2016LCYJ001National key research and development program of China 2016YFC0107105Natural Science Foundation of Shaanxi Province 2008K13-04Science and Technology Development of Shaanxi Province 2014JZ2-007
6 · The paper itself

Abstract

backgroundThe methylation status of oxygen 6-methylguanine-DNA methyltransferase (MGMT) promoter has been associated with treatment response in glioblastoma(GBM). Using pre-operative MRI techniques to predict MGMT promoter methylation status remains inconclusive. In this study, we investigated the value of features from structural and advanced imagings in predicting the methylation of MGMT promoter in primary glioblastoma patients.

methodsNinety-two pathologically confirmed primary glioblastoma patients underwent preoperative structural MR imagings and the efficacy of structural image features were qualitatively analyzed using Fisher's exact test. In addition, 77 of the 92 patients underwent additional advanced MRI scans including diffusion-weighted (DWI) and 3-diminsional pseudo-continuous arterial spin labeling (3D pCASL) imaging. Apparent diffusion coefficient (ADC) and relative cerebral blood flow (rCBF) values within the manually drawn region-of-interest (ROI) were calculated and compared using independent sample t test for their efficacies in predicting MGMT promoter methylation. Receiver operating characteristic curve (ROC) analysis was used to investigate the predicting efficacy with the area under the curve (AUC) and cross validations. Multiple-variable logistic regression model was employed to evaluate the predicting performance of multiple variables.

resultsMGMT promoter methylation was associated with tumor location and necrosis (P <  0.05). Significantly increased ADC value (P <  0.001) and decreased rCBF (P <  0.001) were associated with MGMT promoter methylation in primary glioblastoma. The ADC achieved the better predicting efficacy than rCBF (ADC: AUC, 0.860; sensitivity, 81.1%; specificity, 82.5%; vs rCBF: AUC, 0.835; sensitivity, 75.0%; specificity, 78.4%; P = 0.032). The combination of tumor location, necrosis, ADC and rCBF resulted in the highest AUC of 0.914.

conclusionADC and rCBF are promising imaging biomarkers in clinical routine to predict the MGMT promoter methylation in primary glioblastoma patients.

Indexed as

DNA MethylationMagnetic Resonance ImagingAdultAgedAged, 80 and overBrain NeoplasmsDNA Modification MethylasesDNA Repair EnzymesFemaleGlioblastomaHumansMaleMiddle AgedPromoter Regions, GeneticRetrospective StudiesROC CurveDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTumor Suppressor Proteins3-diminsional pseudo-continuous arterial spin labeling (3D pCASL) imagingApparent diffusion coefficient (ADC)GlioblastomaImage featureOxygen 6-methylguanine-DNA methyltransferase (MGMT) promoter

Identifiers

PMID29467012
PMCPMC5822523

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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.