B
Bagrat Amirbekian
Researcher at University of California, San Francisco
Publications - 8
Citations - 1430
Bagrat Amirbekian is an academic researcher from University of California, San Francisco. The author has contributed to research in topics: Tractography & Diffusion MRI. The author has an hindex of 6, co-authored 8 publications receiving 1053 citations.
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Journal ArticleDOI
Dipy, a library for the analysis of diffusion MRI data
Eleftherios Garyfallidis,Eleftherios Garyfallidis,Matthew Brett,Bagrat Amirbekian,Ariel Rokem,Stefan van der Walt,Maxime Descoteaux,Ian Nimmo-Smith +7 more
TL;DR: Dipy aims to provide transparent implementations for all the different steps of dMRI analysis with a uniform programming interface, and has implemented classical signal reconstruction techniques, such as the diffusion tensor model and deterministic fiber tractography.
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Connecting white matter injury and thalamic atrophy in clinically isolated syndromes.
TL;DR: Thalamocortical lesion volume and the mean diffusivity in track regions connecting lesion and thalami were significantly correlated with thalamic volumes in patients, a finding not observed in regions outside the thalamocortsical white matter.
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Quantifying diffusion MRI tractography of the corticospinal tract in brain tumors with deterministic and probabilistic methods
Monica Bucci,Maria Luisa Mandelli,Jeffrey I. Berman,Bagrat Amirbekian,Christopher Nguyen,Mitchel S. Berger,Roland G. Henry +6 more
TL;DR: The provided data show that probabilistic HARDI tractography is the most objective and reproducible analysis but given the small sample and number of stimulation points a generalization about the results should be given with caution.
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Identifying preoperative language tracts and predicting postoperative functional recovery using HARDI q-ball fiber tractography in patients with gliomas.
Eduardo Caverzasi,Shawn L. Hervey-Jumper,Kesshi M. Jordan,Iryna Lobach,Jing Li,Valentina Panara,Caroline A. Racine,Vanitha Sankaranarayanan,Bagrat Amirbekian,Nico Papinutto,Mitchel S. Berger,Roland G. Henry +11 more
TL;DR: Results indicate that postoperative injury to dorsal language pathways may be prognostic for long-term clinical language deficits following surgery, and suggest the importance of dorsal stream tract preservation to reduce language deficits in patients undergoing glioma resection.
Journal ArticleDOI
Quantifying accuracy and precision of diffusion MR tractography of the corticospinal tract in brain tumors
Maria Luisa Mandelli,Mitchel S. Berger,Monica Bucci,Jeffrey I. Berman,Bagrat Amirbekian,Roland G. Henry +5 more
TL;DR: The poor sensitivity of DTI to delineate lateral motor pathways reported herein suggests that DTI fiber tracking must be used with caution and only as adjunctive data to established methods for motor mapping.