Ashesh Thaker, MD
Assistant Professor, Radiology-Neuroradiology

Medical School:
  • MD, University of California, Los Angeles David Geffen School of Medicine (2009)
Undergraduate School:
  • BA, University of Colorado - Boulder (CO) (2004)
  • Santa Clara Valley Medical Center Program (2010)
  • University of Pennsylvania Health System Program, Radiology (2014)
  • University of California (San Francisco) Program, Neuroradiology (2016)
Languages: English, Spanish, Gujarati
Department: Radiology-Neuroradiology

Professional Titles

  • Director, Neuroradiology Fellowship


  • Assistant Professor (2016)
    School of Medicine, Radiology


  • Kini LG, Thaker AA, Hadar PN, Shinohara RT, Brown MG, Dubroff JG, Davis KA. Quantitative ([)(18)(])FDG PET asymmetry features predict long-term seizure recurrence in refractory epilepsy. Epilepsy Behav. 2021 Mar;116:107714. PubMed PMID: 33485794
  • Thaker AA, Chien AL, Dubroff JG. Frontiers in Neuroscience Imaging: Whole-Body PET. PET Clin. 2021 Jan;16(1):137-146. PubMed PMID: 33160927
  • Potter H, Woodcock JH, Boyd TD, Coughlan CM, O'Shaughnessy JR, Borges MT, Thaker AA, Raj BA, Adamszuk K, Scott D, Adame V, Anton P, Chial HJ, Gray H, Daniels J, Stocker ME, Sillau SH. Safety and efficacy of sargramostim (GM-CSF) in the treatment of Alzheimer's disease. Alzheimers Dement (N Y). 2021;7(1):e12158. PubMed PMID: 33778150
  • Thaker AA, Reddy KM, Thompson JA, Gerecht PD, Brown MS, Abosch A, Ojemann SG, Kern DS. Coronal Gradient Echo MRI to Visualize the Zona Incerta for Deep Brain Stimulation Targeting in Parkinson's Disease. Stereotact Funct Neurosurg. 2021 Apr 26;:1-8. [Epub ahead of print] PubMed PMID: 33902054
  • Nelson KA, Thaker AA, Callen AL, Albach E, Timpone VM. New-onset seizures in adults: Low diagnostic yield of gadolinium contrast in initial brain MRI evaluation. J Neuroimaging. 2021 Jun 10. [Epub ahead of print] PubMed PMID: 34110667
  • Bettcher BM, Olson KE, Carlson NE, McConnell BV, Boyd T, Adame V, Solano DA, Anton P, Markham N, Thaker AA, Jensen AM, Dallmann EN, Potter H, Coughlan C. Astrogliosis and episodic memory in late life: higher GFAP is related to worse memory and white matter microstructure in healthy aging and Alzheimer's disease. Neurobiol Aging. 2021 Jul;103:68-77. PubMed PMID: 33845398
  • Hixon AM, Thaker AA, Pelak VS. Persistent visual dysfunction following PRES due to COVID-19: Case series and literature review. Eur J Neurol. 2021 Jun 11. [Epub ahead of print] PubMed PMID: 34115917
  • Pollard R, Thaker A, Johnson P, Roark C. Middle Cerebral Artery Occlusion in an Intravenous Drug User With Multiple Needle Fragments in the Neck Arteries. Neurohospitalist. 2021 Jul;11(3):272-274. PubMed PMID: 34163558
  • Tanabe J, Thaker A. Microstructure and Diffusion-Weighted Imaging in Neuropsychiatry: A Neuroradiology Perspective. Biol Psychiatry Cogn Neurosci Neuroimaging. 2020 Nov;5(11):1009-1010. PubMed PMID: 33161957
  • Kunigelis KE, Hosokawa P, Arnone G, Raban D, Starr A, Gurau A, Sunshine A, Bunn J, Thaker AA, Youssef AS. The predictive value of preoperative apparent diffusion coefficient (ADC) for facial nerve outcomes after vestibular schwannoma resection: clinical study. Acta Neurochir (Wien). 2020 Aug;162(8):1995-2005. PubMed PMID: 32440924
  • Thaker A, Abosch A. MRI and CT Imaging with Stereotactic Neurosurgery. In: Functional Neurosurgery: The Essentials. First ed. Brown JA, Pilitsis JG, Schulder M, editors. New York: Thieme; 2019. Chapter 4; p.15-18. 168p.
  • Yedavalli V, Nyberg EM, Chow DS, Thaker AA. Beyond the embolus: "do not miss" diffusion abnormalities of ischaemic and non-ischaemic neurological disease. Insights Imaging. 2017 Dec;8(6):573-580. PubMed PMID: 28986862
  • Thaker AA, Weinberg BD, Dillon WP, Hess CP, Cabral HJ, Fleischman DA, Leurgans SE, Bennett DA, Hyman BT, Albert MS, Killiany RJ, Fischl B, Dale AM, Desikan RS. Entorhinal Cortex: Antemortem Cortical Thickness and Postmortem Neurofibrillary Tangles and Amyloid Pathology. AJNR Am J Neuroradiol. 2017 May;38(5):961-965. PubMed PMID: 28279988
  • Yu JP, Kansagra AP, Thaker A, Colucci A, Sherry SJ, Subramaniam RM. Building for tomorrow today: opportunities and directions in radiology resident research. Acad Radiol. 2015 Jan;22(1):50-7. PubMed PMID: 25442797
  • Thaker A, Navadeh S, Gonzales H, Malekinejad M. Effectiveness of Policies on Reducing Exposure to Ionizing Radiation From Medical Imaging: A Systematic Review. J Am Coll Radiol. 2015 Dec;12(12 Pt B):1434-45. PubMed PMID: 26499166
  • Thaker AA, Schmitt SE, Pollard JR, Dubroff JG. Natalizumab-induced progressive multifocal leukoencephalopathy. Clin Nucl Med. 2014 Jul;39(7):e365-6. PubMed PMID: 24152618
  • Thaker AA, Razjouyan F, Woods DL, Haemmerich D, Sekhar K, Wood BJ, Dreher MR. Combination therapy of radiofrequency ablation and bevacizumab monitored with power Doppler ultrasound in a murine model of hepatocellular carcinoma. Int J Hyperthermia. 2012;28(8):766-75. PubMed PMID: 23043501
  • Surrey LF, Thaker AA, Zhang PJ, Karakousis G, Feldman MD. Ectopic functioning adrenocortical oncocytic adenoma (oncocytoma) with myelolipoma causing virilization. Case Rep Pathol. 2012;2012:326418. PubMed PMID: 23094172
View All (18 Total) View Less

Professional Memberships

  • American Society of Neuroradiology, Member
  • American College of Radiology, Member
  • Radiological Society of North America, Member
  • European Society of Radiology, Corresponding Member
  • Colorado Radiological Society, Chair, Education Committee
  • Western Neuroradiological Society, Member
  • American Society of Functional Neuroradiology, Member

Practice Locations

University of Colorado Hospital (UCH)
12605 E. 16th Ave
Aurora, CO 80045

Hospital Affiliation
  • University of Colorado Hospital
  • UCHealth Highlands Ranch Hospital

Specialty Information

  • Neuroradiology, Board Certification (2017)
  • Diagnostic, Board Certification (2015)
Conditions & Treatments
  • Radiology - Neuroradiology
  • Radiology
  • Radiology - Magnetic Resonance Imaging (MRI)
  • Radiology - CT Scans
Clinical Interests
My clinical interests include diagnostic imaging of neurodegenerative disorders, including Alzheimer's disease, and epilepsy. I also have clinical expertise in the diagnosis and treatment of spinal CSF leak and lead percutaneous spine intervention for the neuroradiology division.

General Information

Medical Schools:
  • MD, University of California, Los Angeles David Geffen School of Medicine (2009)
Undergraduate Schools:
  • BA, University of Colorado - Boulder (CO) (2004)
  • Santa Clara Valley Medical Center Program (2010)
Residency Programs:
  • University of Pennsylvania Health System Program, Radiology (2014)
  • University of California (San Francisco) Program, Neuroradiology (2016)
Languages: English, Spanish, Gujarati
Department: Radiology-Neuroradiology