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    Contact Dr. Stokes

    Email [email protected]

    Ashley Stokes, PhD

    Assistant Professor, Imaging Research

    Ashley Stokes, PhD, is an assistant professor of imaging research in the Keller Center for Imaging Innovation at Barrow Neurological Institute.

    Dr. Stokes’ expertise includes the development and analysis of advanced neuroimaging methods for neurological diseases, including Alzheimer’s disease, multiple sclerosis, brain tumors, and Parkinson’s disease. She specifically focuses on multi-parametric imaging and multi-scale perfusion imaging methods. She is a member of the Arizona Alzheimer’s Consortium and the International Society for Magnetic Resonance in Medicine.

    Dr. Stokes earned her doctorate degree in chemistry at Duke University in Durham, North Carolina. She completed a postdoctoral research fellowship at the Vanderbilt University Institute of Imaging Science.

    Dr. Stokes’ research focuses on developing, validating, and translating advanced magnetic resonance image acquisition and analysis methods to noninvasively assess neurological diseases and disorders. She has applied these advanced imaging methods to probe key neuropathological changes in Alzheimer’s disease and other memory disorders, multiple sclerosis, and brain tumors.

    Education & Training
    • Postdoctoral Research Fellowship, Vanderbilt University Institute of Imaging Science, Department of Radiology and Radiological Sciences, 2012-2015
    • PhD, Duke University, Chemistry, 2012
    • BS, Western Illinois University, Chemistry, 2007
    Professional Memberships
    • Arizona Alzheimer’s Consortium
    • International Society for Magnetic Resonance in Medicine (ISMRM)
    Honors and Awards
    • Summa Cum Laude Merit Award, ISMRM, 2015
    • 23rd Annual Meeting Trainee Stipend, ISMRM, 2015
    • Postdoctoral Fellow of the Year Award, Vanderbilt University, 2015
    • William Negendank Award – Cancer Imaging, ISMRM, 2014
    • 22nd Annual Meeting Trainee Stipend, 2014
    • 21st Annual Meeting Trainee Stipend, 2013
    • Student Travel Stipend, World Molecular Imaging Congress, 2011
    • T. Adams Fellowship, Duke University, Chemistry Department, 2010-2011
    • Student Travel Stipend, Experimental NMR Conference, 2010
    • Medical Imaging Training Program Fellowship, Duke University, 2009
    • Honors College Research Grant, Western Illinois University, 2006-2007
    • Undergraduate Research Grant, Western Illinois University, College of Arts and Sciences, 2006-2007
    • Research Experiences for Undergraduates (REU) Program, Western Illinois University, 2006
    • Foundation Honors Scholarship, Western Illinois University, 2003-2007
    Selected Publications
    1. Quarles CC, Bell LC, Stokes AM. Imaging vascular and hemodynamic features of the brain using dynamic susceptibility contrast and dynamic contrast enhanced MRI. Neuroimage. 2018.
    2. Semmineh NB, Stokes AM, Bell LC, Boxerman JL, Quarles CC. A population-based digital reference object (DRO) for optimizing dynamic susceptibility contrast (DSC)-MRI methods for clinical trials. Tomography. 2017;3(1):41-49.
    3. Bell LC, Hu LS, Stokes AM, McGee SC, Baxter LC, Quarles CC. Characterizing the influence of preload fosing on percent signal recovery (PSR) and cerebral blood volume (CBV) measurements in a patient population with high-grade glioma using dynamic susceptibility contrast MRI. Tomography. 2017;3(2):89-95.
    4. Bell LC, Does MD, Stokes AM, Baxter LC, Schmainda KM, Dueck AC, Quarles CC. Optimization of DSC MRI echo times for CBV measurements using error analysis in a pilot study of high-grade gliomas. AJNR Am J Neuroradiol. 2017;38(9):1710-1715.
    5. Stokes AM, Skinner JT, Yankeelov T, Quarles CC. Assessment of a simplified spin and gradient echo (sSAGE) approach for human brain tumor perfusion imaging. Magn Reson Imaging. 2016;34(9):1248-1255.
    6. Stokes AM, Semmineh N, Quarles CC. Validation of a T1 and T2* leakage correction method based on multiecho dynamic susceptibility contrast MRI using MION as a reference standard. Magn Reson Med. 2016;76(2):613-625.
    7. Stokes AM, Hart CP, Quarles CC. Hypoxia imaging with PET correlates with antitumor activity of the hypoxia-activated prodrug evofosfamide (TH-302) in rodent glioma models. Tomography. 2016;2(3):229-237.
    8. Newton AT, Pruthi S, Stokes AM, Skinner JT, Quarles CC. Improving perfusion measurement in DSC-MR imaging with multiecho information for arterial input function determination. AJNR Am J Neuroradiol. 2016;37(7):1237-1243.
    9. Li K, Li H, Zhang XY, Stokes AM, Jiang X, Kang H, Quarles CC, Zu Z, Gochberg DF, Gore JC, Xu J. Influence of water compartmentation and heterogeneous relaxation on quantitative magnetization transfer imaging in rodent brain tumors. Magn Reson Med. 2016;76(2):635-644.
    10. Abramson RG, Arlinghaus LR, Dula AN, Quarles CC, Stokes AM, Weis JA, Whisenant JG, Chekmenev EY, Zhukov I, Williams JM, Yankeelov TE. MR imaging biomarkers in oncology clinical trials. Magn Reson Imaging Clin N Am. 2016;24(1):11-29.

    About Barrow

    Since our doors opened as a regional specialty center in 1962, we have grown into one of the premier destinations in the world for neurology and neurosurgery. Our experienced, highly skilled, and comprehensive team of neurological specialists can provide you with a complete spectrum of care–from diagnosis through outpatient neurorehabilitation–under one roof. Barrow Neurological Institute: Discover. Educate. Heal.