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Research ArticleFunctional

Identification of the Language Network from Resting-State fMRI in Patients with Brain Tumors: How Accurate Are Experts?

S.K. Gujar, K. Manzoor, J. Wongsripuemtet, G. Wang, D. Ryan, S. Agarwal, M. Lindquist, B. Caffo, J.J. Pillai and H.I. Sair
American Journal of Neuroradiology March 2023, 44 (3) 274-282; DOI: https://doi.org/10.3174/ajnr.A7806
S.K. Gujar
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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K. Manzoor
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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J. Wongsripuemtet
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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G. Wang
bDepartment of Biostatistics (G.W., M.L., B.C.)
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D. Ryan
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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S. Agarwal
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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M. Lindquist
bDepartment of Biostatistics (G.W., M.L., B.C.)
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B. Caffo
bDepartment of Biostatistics (G.W., M.L., B.C.)
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J.J. Pillai
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
cDepartment of Neurosurgery (J.J.P.)
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H.I. Sair
aFrom the Division of Neuroradiology (S.K.G., K.M., J.W., D.R., S.A., J.J.P., H.I.S.), The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
dThe Malone Center for Engineering in Healthcare (H.I.S.), The Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland
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Abstract

BACKGROUND AND PURPOSE: Resting-state fMRI helps identify neural networks in presurgical patients who may be limited in their ability to undergo task-fMRI. The purpose of this study was to determine the accuracy of identifying the language network from resting-state-fMRI independent component analysis (ICA) maps.

MATERIALS AND METHODS: Through retrospective analysis, patients who underwent both resting-state-fMRI and task-fMRI were compared by identifying the language network from the resting-state-fMRI data by 3 reviewers. Blinded to task-fMRI maps, these investigators independently reviewed resting-state-fMRI ICA maps to potentially identify the language network. Reviewers ranked up to 3 top choices for the candidate resting-state-fMRI language map. We evaluated associations between the probability of correct identification of the language network and some potential factors.

RESULTS: Patients included 29 men and 14 women with a mean age of 41 years. Reviewer 1 (with 17 years’ experience) demonstrated the highest overall accuracy with 72%; reviewers 2 and 3 (with 2 and 7 years’ experience, respectively) had a similar percentage of correct responses (50% and 55%). The highest accuracy used ICA50 and the top 3 choices (81%, 65%, and 60% for reviewers 1, 2, and 3, respectively). The lowest accuracy used ICA50, limiting each reviewer to the top choice (58%, 35%, and 42%).

CONCLUSIONS: We demonstrate variability in the accuracy of blinded identification of resting-state-fMRI language networks across reviewers with different years of experience.

ABBREVIATIONS:

BOLD
blood oxygen level–dependent
ICA
independent component analysis
rs
resting-state
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American Journal of Neuroradiology: 44 (3)
American Journal of Neuroradiology
Vol. 44, Issue 3
1 Mar 2023
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Identification of the Language Network from Resting-State fMRI in Patients with Brain Tumors: How Accurate Are Experts?
S.K. Gujar, K. Manzoor, J. Wongsripuemtet, G. Wang, D. Ryan, S. Agarwal, M. Lindquist, B. Caffo, J.J. Pillai, H.I. Sair
American Journal of Neuroradiology Mar 2023, 44 (3) 274-282; DOI: 10.3174/ajnr.A7806

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Identification of the Language Network from Resting-State fMRI in Patients with Brain Tumors: How Accurate Are Experts?
S.K. Gujar, K. Manzoor, J. Wongsripuemtet, G. Wang, D. Ryan, S. Agarwal, M. Lindquist, B. Caffo, J.J. Pillai, H.I. Sair
American Journal of Neuroradiology Mar 2023, 44 (3) 274-282; DOI: 10.3174/ajnr.A7806
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