Graduate Schools
- MSc, McMaster University (2009)
- PhD, McMaster University (2022)
Languages
EnglishDepartment
Medicine-CardiologyProfessional Titles
- Clinical Scientist
- Adjoint Assistant Professor
Publications
- Polak P, Schulte RF, Noseworthy MD. An approach to evaluation of the point-spread function for 23Na magnetic resonance imaging. NMR Biomed. 2022 Feb;35(2):e4627. PubMed PMID: 34652040
- Nowikow CE, Polak P, Konyer NB, Nikolova NK, Noseworthy MD. Network and Field Analysis of Koch Snowflake Fractal Geometry Radiofrequency Coils for Sodium MRI, Front Phys. 2021 Aug; doi:10.3389/fphy.2021.697104.
- Zivadinov R, Polak P, Schweser F, Bergsland N, Hagemeier J, Dwyer MG, Ramasamy DP, Baker JG, Leddy JJ, Willer BS. Multimodal Imaging of Retired Professional Contact Sport Athletes Does Not Provide Evidence of Structural and Functional Brain Damage. J Head Trauma Rehabil. 2018 Sep Oct;33(5):E24-E32. PubMed PMID: 30080799
- Zivadinov R, Ramasamy DP, Vaneckova M, Gandhi S, Chandra A, Hagemeier J, Bergsland N, Polak P, Benedict RH, Hojnacki D, Weinstock-Guttman B. Leptomeningeal contrast enhancement is associated with progression of cortical atrophy in MS: A retrospective, pilot, observational longitudinal study. Mult Scler. 2017 Sep;23(10):1336-1345. PubMed PMID: 27811339
- Hanspach J, Dwyer MG, Bergsland NP, Feng X, Hagemeier J, Bertolino N, Polak P, Reichenbach JR, Zivadinov R, Schweser F. Methods for the computation of templates from quantitative magnetic susceptibility maps (QSM): Toward improved atlas- and voxel-based analyses (VBA). J Magn Reson Imaging. 2017 Nov;46(5):1474-1484. PubMed PMID: 28263417
- Feng X, Deistung A, Dwyer MG, Hagemeier J, Polak P, Lebenberg J, Frouin F, Zivadinov R, Reichenbach JR, Schweser F. An improved FSL-FIRST pipeline for subcortical gray matter segmentation to study abnormal brain anatomy using quantitative susceptibility mapping (QSM). Magn Reson Imaging. 2017 Jun;39:110-122. PubMed PMID: 28188873
- Hagemeier J, Zivadinov R, Dwyer MG, Polak P, Bergsland NP, Weinstock-Guttman B, Zalis J, Deistung A, Reichenbach JR, Schweser F. Changes of deep gray matter magnetic susceptibility over 2 years in multiple sclerosis and healthy control brain. NeuroImage: Clin. 2017 Apr; 18:1007-1016. doi: 10.1016/j.nicl.2017.04.008. PMID: 29868452.
- Modica C, Schweser F, Sudyn M, Bertolino N, Preda M, Polak P, Siebert D, Krawiecki J, Sveinsson M, Hagemeier J, Dwyer MG, Pol S, Zivadinov R. Effect of teriflunomide on cortex-basal ganglia-thalamus (CxBGTh) circuit glutamatergic dysregulation in the Theiler’s Murine Encephalomyelitis Virus mouse model of multiple sclerosis. PLoS ONE. 2017 Aug; 12(8):e0182729. doi: 10.1371/journal.pone.0182729. PMID: 28796815.
- Zivadinov R, Ramasamy DP, Benedict RR, Polak P, Hagemeier J, Magnano C, Dwyer MG, Bergsland N, Bertolino N, Weinstock-Guttman B, Kolb C, Hojnacki D, Utriainen D, Haacke EM, Schweser F. Cerebral Microbleeds in Multiple Sclerosis Evaluated on Susceptibility-weighted Images and Quantitative Susceptibility Maps: A Case-Control Study. Radiology. 2016 Dec;281(3):884-895. PubMed PMID: 27308776
- Polak P, Tuyl JV, Engel R. Imaging Chronic Traumatic Encephalopathy: A Biomedical Engineering Perspective. Crit Rev Biomed Eng. 2016;44(6):473-492. PubMed PMID: 29431093
- Cesar B, Dwyer MG, Shucard JL, Polak P, Bergsland N, Benedict RH, Weinstock-Guttman B, Shucard DW, Zivadinov R. Cognitive and White Matter Tract Differences in MS and Diffuse Neuropsychiatric Systemic Lupus Erythematosus. AJNR Am J Neuroradiol. 2015 Oct;36(10):1874-83. PubMed PMID: 26066628
- Polak P, Leddy JJ, Dwyer MG, Willer B, Zivadinov R. Diffusion tensor imaging alterations in patients with postconcussion syndrome undergoing exercise treatment: a pilot longitudinal study. J Head Trauma Rehabil. 2015 Mar-Apr;30(2):E32-42. PubMed PMID: 24721808
- Aliotta R, Cox JL, Donohue K, Weinstock-Guttman B, Yeh A, Polak P, Dwyer MG, Zivadinov R. Tract-based statistics (TBSS) analysis of di?usion-tensor imaging in pediatric- and adult-onset multiple sclerosis. Human Brain Mapping. 2014 Jan; 35(1):53-60. doi: 10.1002/hbm.22148. PMID: 22936429.
- Wack DS, Polak P, Furuyama J, Burkard R. Masking Level Di?erence - a Di?usion Tensor Imaging and Functional MRI Study. PLoS ONE. 2014 Feb; 9(2):e88466. doi:10.1371/journal.pone.0088466. PMID: 24558392.
- Hagemeier J, Dwyer MG, Bergsland N, Schweser F, Magnano CR, Heininen-Brown M, Ramasamy DP, Carl E, Kennedy C, Melia R, Polak P, Deistung A, Geurts JJ, Reichenbach JR, Zivadinov R. Effect of age on MRI phase behavior in the subcortical deep gray matter of healthy individuals. AJNR Am J Neuroradiol. 2013 Nov-Dec;34(11):2144-51. PubMed PMID: 23721902
- Polak P, Magnano C, Zivadinov R, Poloni G. 3D FLAIRED: 3D fluid attenuated inversion recovery for enhanced detection of lesions in multiple sclerosis. Magn Reson Med. 2012 Sep;68(3):874-81. PubMed PMID: 22139997
- Beggs C, Shephard S, Dwyer MG, Polak P, Magnano C, Carl E, Poloni GU, Weinstock-Guttman B, Zivadinov R. Sensitivity and speci?city of SWI venography for detection of cerebral venous alterations in multiple sclerosis. Neurological Research. 2012 Oct; 34(8):793-801. doi: 10.1179/1743132812Y.0000000048. PMID: 22709857.
Professional Memberships
- Society of Cardiovascular Computed Tomography, Member
Personal Interests
In my free time, I hike, cycle, ski (the usual Colorado things), and also play hockey.
Public Speaking
Yes
MRI, scientific research, concussions and sports-related traumatic brain injuries.
In my free time, I hike, cycle, ski (the usual Colorado things), and also play hockey.
Public Speaking
Yes
MRI, scientific research, concussions and sports-related traumatic brain injuries.