Evidence map›Paper›PMID 34249625›Full record

ArticleQuantitative imaging in medicine and surgery2021

Exploring diagnostic performance of T2 mapping in diffuse glioma grading.

Weibin Gu, Shiyuan Fang, Xinyi Hou, Ding Ma, Shaowu Li

Abstract read
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Article in Quantitative imaging in medicine and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

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17citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

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  8. Multiparametric simultaneous hybridQuantitative imaging in medicine and surgery · 2024
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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Weibin GuDepartment of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Shiyuan FangDepartment of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Xinyi HouDepartment of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Ding MaDepartment of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Shaowu LiDepartment of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate the diagnostic performance of T2 mapping in differentiating WHO grade II glioma from high-grade glioma (HGG).

methodsWe conducted a single-center, retrospective diagnostic study. Confirmed diffuse glioma (WHO grade II-IV) patients who underwent post-contrast T1-weighted imaging, T2-weighted imaging, and T2 mapping were included. All diagnoses were based on histological and molecular tests. Seventy-five percent of cases were subsampled to generate receiver operating characteristic (ROC) curves and areas under the curve (AUC), while the remaining cases were used to test the accuracy of T2 mapping. Subsampling was repeated four times. Age, T2 relaxation time, and contrast-enhancement status were used to generate a multivariable ROC curve. T2 relaxation time was also used to generate ROC curves to predict the isocitrate dehydrogenase (IDH) status.

resultsA total of 159 patients were included in the study. After four repeats of subsampling, the AUCs of the T2 mapping ROC curve were 0.801 (95% CI: 0.724-0.879), 0.795 (95% CI: 0.714-0.875), 0.803 (95% CI: 0.723-0.884), and 0.801 (95% CI: 0.716-0.886), with an average sensitivity of 0.753 and an average specificity of 0.767. When applied to the remaining 25% of cases, the accuracy was 75%, 93.75%, 82.50%, and 71.74%. The AUC of the multivariable ROC was 0.927 (95% CI: 0.882-0.971). IDH-mutant and IDH-wildtype gliomas have significantly different T2 relaxation times (146.28 and 124.10 ms, respectively; P=0.001), and the AUC of IDH-mutant prediction was 0.687 (95% CI: 0.585-0.789).

conclusionsQuantitative T2 mapping differentiated WHO grade II glioma from HGG with moderate sensitivity and specificity. Given the advantages of short acquisition times and the absence of a contrast agent, our study suggests the application of T2 mapping in pre-operative glioma grading is feasible.

Indexed as

diffuse gliomagradingmagnetic resonance imaging (MRI)quantitativeT2 mapping

Identifiers

PMID34249625
PMCPMC8250032

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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.