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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Journal of Magnetic ...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Journal of Magnetic Resonance Imaging
Article . 2023 . Peer-reviewed
License: Wiley Online Library User Agreement
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Tumor Multiregional Mean Apparent Propagator (MAP) Features in Evaluating Gliomas—A Comparative Study With Diffusion Kurtosis Imaging (DKI)

Authors: Shanmei Zeng; Hui Ma; Dingxiang Xie; Yingqian Huang; Jia Yang; Fangzeng Lin; Zuliwei Ma; +4 Authors

Tumor Multiregional Mean Apparent Propagator (MAP) Features in Evaluating Gliomas—A Comparative Study With Diffusion Kurtosis Imaging (DKI)

Abstract

BackgroundGlioma classification affects treatment and prognosis. Reliable imaging methods for preoperatively evaluating gliomas are essential.PurposeTo evaluate tumor multiregional mean apparent propagator (MAP) features in glioma diagnosis and to compare those with diffusion‐kurtosis imaging (DKI).Study TypeRetrospective study.Subjects70 untreated glioma patients (31 LGGs (low‐grade gliomas), 34 women; mean age, 47 ± 12 years, training (60%, n = 42) and testing cohorts (40%, n = 28)).Field Strength/Sequence3‐T, diffusion‐MRI using q‐space Cartesian grid sampling with 11 different b‐values.AssessmentTumor multiregional MAP (mean squared displacement (MSD); q‐space inverse variance (QIV); non‐Gaussianity (NG); axial/radial non‐Gaussianity (NGAx, NGRad); return‐to‐origin/axis/plane probability (RTOP, RTAP, and RTPP)); and DKI metrics (axial/mean/radial kurtosis (AK, MK, and RK)) on tumor parenchyma (TP) and peritumoral areas (PT) in histopathologically gliomas grading and genotyping were assessed.Statistical TestsMann–Whitney U; Kruskal–Wallis; Benjamini–Hochberg; Bonferroni‐correction; receiver operating curve (ROC) and area under curve (AUC); DeLong's test; Random Forest (RF). P value<0.05 was considered statistically significant after multiple comparisons correction.ResultsCompared with LGGs, MSD, and QIV were significantly lower in TP, whereas NG, NGAx, NGRad, RTOP, RTAP, RTPP, and DKI metrics were significantly higher in HGGs (high‐grade gliomas) (P ≤ 0.007), as well as in isocitrate‐dehydrogenase (IDH)‐mutated than IDH‐wildtype gliomas (P ≤ 0.039). These trends were reversed for PT (tumor grades, P ≤ 0.011; IDH‐mutation status, P ≤ 0.012). ROC analysis showed that, in TP, DKI metrics performed best in TP (AUC 0.83), whereas in PT, RTPP performed best (AUC 0.77) in glioma grading. AK performed best in TP (AUC 0.77), whereas MSD and RTPP performed best in PT (AUC 0.73) in IDH genotyping. Further RF analysis with DKI and MAP demonstrated good performance in grading (AUC 0.91, Accuracy 82%) and IDH genotyping (AUC 0.87, Accuracy 79%).Data ConclusionTumor multiregional MAP features could effectively evaluate gliomas. The performance of MAP may be similar to DKI in TP, while in PT, MAP may outperform DKI.Level of Evidence4Technical EfficacyStage 2

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Keywords

Male, Adult, Brain Neoplasms, Reproducibility of Results, Brain, Glioma, Middle Aged, Diffusion Magnetic Resonance Imaging, Diffusion Tensor Imaging, ROC Curve, Image Interpretation, Computer-Assisted, Image Processing, Computer-Assisted, Humans, Female, Retrospective Studies

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    popularity
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    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Top 10%
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