Evidence map›Paper›PMID 42095926›Full record

ArticleNeuroradiology2026

IDH status shapes glioma oncotopy: voxel-wise mapping of 644 adult diffuse gliomas.

Freya Garhöfer, Yeong Chul Yun, Sabine Wolf, Katharina Holz, Johann M E Jende, Anja Hohmann, Philipp Vollmuth, Martin Bendszus, Corrado Santarosa, Karl-Olof Lövblad and 5 more

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Article in Neuroradiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

15 authors.

Freya GarhöferFaculty of Medicine, Heidelberg University, Heidelberg, Germany.
Yeong Chul YunDepartment of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany.
Sabine WolfFaculty of Medicine, Heidelberg University, Heidelberg, Germany.
Katharina HolzFaculty of Medicine, Heidelberg University, Heidelberg, Germany.
Johann M E JendeDivision of Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Anja HohmannDepartment of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
Philipp VollmuthDepartment of Neuroradiology, University Hospital Bonn, Bonn, Germany.
Martin BendszusDepartment of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany.
Corrado SantarosaDepartment of Neuroradiology, University Hospital of Geneva, Geneva, Switzerland.
Karl-Olof LövbladDepartment of Neuroradiology, University Hospital of Geneva, Geneva, Switzerland.
Heinz-Peter SchlemmerDivision of Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Felix SahmDepartment of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany.
Sabine HeilandDepartment of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany.
Varun VenkataramaniDepartment of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
Felix T KurzDepartment of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany. FelixTobias.Kurz@hug.ch.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to characterize the anatomical and imaging features of adult-type diffuse gliomas across histomolecular subtypes.

methodsClinical 3-Tesla brain MRI images from 644 patients with pathologically confirmed adult-diffuse glioma before treatment was retrospectively evaluated: 527 IDH-wildtype glioblastoma, 71 astrocytoma, and 46 oligodendroglioma. Pre- and post-contrast T1-weighted, T2-weighted and FLAIR sequences were part of the MRI protocol. Contrast-enhancing tumors and non-enhancing lesions (NEL) were automatically segmented using HD-GLIO. We used a voxel-wise Fisher-exact-test followed by random-permutation (ADIFFI) to identify regions with higher occurrence of tumor associated with IDH-mutation status or 1p/19q-codeletion status. Mann-Whitney-U-test was used to compare signal intensities in CET and NEL across the three different subtypes of adult-diffuse glioma investigated here.

resultsWe observed a significant correlation of IDH-mutant gliomas with a predominance in the frontal lobe adjacent to the rostral extension of the lateral ventricles. IDH-wildtype tumors had larger NEL volumes than IDH-mutant gliomas (p < 0.0001). Signal intensity analysis demonstrated consistently lower T1w and T1-CE values and higher T2w and FLAIR values in IDH-mutant gliomas (all p < 0.0001). Oligodendrogliomas showed higher signal intensity on T1-CE images compared to astrocytomas (p = 0.035).

conclusionWe analyzed a large radio-genomic patient cohort consisting of glioblastoma, astrocytoma and oligodendroglioma. Our findings are in line with previously analyzed smaller patient cohorts. Our findings underline the importance of the IDH-mutation for determining tumor location and potentially point to a cell of origin along the rostral extension of the lateral ventricles.

Indexed as

Brain NeoplasmsGliomaIsocitrate DehydrogenaseMagnetic Resonance ImagingAdultAgedFemaleHumansMaleMiddle AgedMutationRetrospective StudiesIsocitrate DehydrogenaseAstrocytomaGlioblastomaGliomaMRIOligodendrogliomaPre-treatment diagnosis

Identifiers

PMID42095926
PMCPMC13323361

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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.