Emily McWalter

     Emily McWalter  B.Sc., M.A.Sc., Ph.D.

    Assistant Professor of Mechanical Engineering

    Biography

    Dr. Emily McWalter joined the Department of Mechanical Engineering at the University of Saskatchewan in January 2016.  She previously received her B.Sc. in Mechanical Engineering from Queen’s University in 2002 and her M.A.Sc. and Ph.D. in Mechanical Engineering at the University of British Columbia in 2004 and 2010, respectively.  She then spent five years at Stanford University, first as a Post-doctoral Fellow and then as a Research Associate in the Department of Radiology.  Dr. McWalter’s research program focuses on using novel, quantitative MRI techniques to understand knee joint and soft tissue function in degenerative diseases such as osteoarthritis.

    Publications

    Refereed Journal Articles
    • Kedgley, AE, McWalter, EJ, Wilson, DJ, The Effect of Coordinate System Variation on In Vivo Patellofemoral Kinematic Measures, The Knee, 2015 Mar;22(2):88-94.

    • Wentland, AL, McWalter, EJ, Pal, S, Delp, SL, Gold, GE, Muscle velocity and inertial force from phase contrast MRI. J Magn Reson Imaging, 2015 Aug;42(2):526-32.

    • Matzat, SJ, McWalter, EJ, Kogan, F, Chen W, Gold GE, T2 Relaxation time quantitation differs between pulse sequences in articular cartilage, 2015 J Magn Reson Imaging, Jul;42(1):105-13.

    • Riley, GM, McWalter, EJ, Stevens, KJ, Safran, MR, Lattanzi, R, Gold, GE, MRI of the hip for the evaluation of femoroacetabular impingement; past, present and future, Journal of Magnetic Resonance Imaging, 2015 Mar;41(3):558-72.

    • Zöllner, AM, Pok, JM, McWalter, EJ, Gold, GE, Kuhl, E, On high heels and short muscles: A multiscale model for sarcomere loss in the gastrocnemius muscle, Journal of Theoretical Biology, 2015. Jan;365:301-10.

    • Jordan, CJ, McWalter, EJ, Monu, UD, Watkins, RD, Chen, W, Bangerter, NK, Hargreaves, BA, Gold, GE,  Variability of CubeQuant T1rho, Quantitative DESS T2, and Cones Sodium MRI in Knee Cartilage,  Osteoarthritis and Cartilage, 2014 Oct;22(10):1559-67.

    • Choi, JH, Maier, A, Keil, A, Pal, S, McWalter, EJ, Beaupré, GS, Gold, GE, Fahrig, R, Fiducial marker-based correction for involuntary motion in weight-bearing C-arm CT scanning of knees. Part II. Experiment, Medical Physics, 2014 Jun;41(6):061902.

    • Shapiro, LM, McWalter, EJ, Son, MS, Levenston, M, Hargreaves, BA, Gold, GE, Mechanisms of osteoarthritis in the knee: MR imaging appearance, Journal of Mangetic Resonance Imaging, 2014 Jun;39(6):1346-56.

    • McWalter, EJ, O’Kane, C, Wilson, DR, Validation of an MRI-based method to assess patellofemoral joint contact areas in loaded knee flexion in vivo. Journal of Magnetic Resonance Imaging, 2014 Apr;39(4):978-87.

    • Choi, JH, Fahrig, R, Keil, A, Besier, TF, Pal, S, McWalter, EJ, Maier, A, Fiducial Marker-based Correction for Involuntary Motion in Weight-bearing C-arm CT scanning of Knees. Part 1: Numerical Model-based Optimization, Medical Physics, 2013 Sep;40(9):091905.

    • Wilson, DR, McWalter, EJ, Johnston, JD, The measurement of joint mechanics and their role in osteoarthritis genesis and progression, Updated Review, Rheumatic Disease Clinics of North America, 2013 Feb;39(1):21-44.

    • McWalter, EJ, Hunter, DJ, Harvey, WF, McCree, P, Hirko, KA, Felson, DT, Wilson, DR, The effect of a patellar brace on three-dimensional patellar kinematics in patients with lateral patellofemoral osteoarthritis. Osteoarthritis and Cartilage, 2011; 19(7):801-8.

    • McWalter, EJ, Hunter, DJ, Wilson, DR, The effect of load on three-dimensional patellar kinematics in healthy knees, Journal of Biomechanics, 2010; 43(10):1890-7.

    • McWalter, EJ, Macintyre, NJ, Cibere, J, Wilson, DR, A single measure of patellar kinematics is an inadequate surrogate marker for patterns of three-dimensional kinematics in healthy knees, Knee, 2010; 17(2):135-140.

    • Wilson, DR, McWalter, EJ, Johnston, JD, The measurement of joint mechanics and their role in osteoarthritis genesis and progression, Review, Rheumatic Disease Clinics of North America, 2008; 34(3):605-22 and Medical Clinics of North America, 2009; 93(1):67-82.

    • McWalter, EJ, Cibere, J, Nicolaou, S, Schulzer, M, Wilson, DR, Relationship between varus/valgus alignment and patellar kinematics in individuals with knee osteoarthritis, Journal of Bone and Joint Surgery (Am), 2007; 89(12):2723-31.

    • McWalter, EJ, Wirth, W, Siebert, M, von Eisenhart-Rothe, R, Hudelmaier, M, Wilson, DR, Eckstein, F, Use of novel interactive input devices for segmentation of articular cartilage from magnetic resonance images, Osteoarthritis and Cartilage, 2005; 13(1):48-53.

    Conference Abstracts
    • Monu, UD, Hargreaves, BA, Jordan, CD, Gold, GE, McWalter, EJ, Cluster Analysis for T2 and T1rho Relaxation Times using 3D Projection Maps of the Femoral Condyle in a Healthy and ACL-injured Population, 23rd Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 23. Toronto, ON, Canada; 2015:4182, Poster Presentation

    • Chaudhari, AS, Moran, KJ, McWalter, EJ, BA, Gold, GE, Hargreaves, Rapid, High-Resolution, and Multi-Contrast Knee MRI of Short T2 Tissues with Ultrashort TE Double-Echo Steady-State, 23rd Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 23. Toronto, ON, Canada; 2015:4223, Poster Presentation

    • McWalter, EJ,  Sveinsson, B, Oei, EH, Robinson, WH, Genovese, MC, Gold, GE, Hargreaves, BA, Non-contrast Diffusion-weighted MRI for Detection of Synovitis using DESS. 22st Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 22. Milan, Italy; 2014:1197, Poster Presentation

    • Monu, UD, McWalter, EJ, Jordan, CD, Hargreaves, BA, Gold, GE, 3D Visualization of Quantitative T2  Relaxation Times in the Femoral Condylar Cartilage in Healthy and ACL-injured Individuals, 22st Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 22. Milan, Italy; 2014:0147, Oral Presentation

    • Wentland, AL, McWalter, EJ, Pal, S, Delp, SL, Gold, GE, Non-Invasive in vivo Measurements of Inertial Forces in Muscle using Phase Contrast Magnetic Resonance Imaging, 22st Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 22. Milan, Italy; 2014:0828, Oral Presentation

    • Matzat, SJ, McWalter, EJ, Kogan, F, Chen, W, Gold, GE, Comparison of Quantitative T2 Mapping Techniques for Articular Cartilage, 22st Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 22. Milan, Italy; 2014:0302, Oral Presentation

    • Kogan, F, Rosenberg, J, McWalter, EJ, Park, D, Matzat, SJ, Prekins, K, Tran, C, Taylor, M, Sveinsson, B, Newbould, R, Monu, UD, Want, H, Bangerter, NK, Gold, GE, 3D Visualization of Quantitative MRI of Osteoarthritis for Multicenter Trials: Standardization between Different Centers and Manufacturers, 22st Annual Meeting of the International Society for Magnetic Resonance in Medicine. Volume 22. Milan, Italy; 2014:1196, Poster Presentation

    • Choi, J-H, McWalter, EJ, Pal, S, Maier, A, Gold, GE, Fahrig, R, Analysis of Three-dimensional Joint Space of the Tibiofemoral Joint, Proceedings of the IEEE Medical Imaging Conference 2013, Seoul, Korea, Oral Presentation

    • McWalter, EJ, Gold, GE, Alley, MT, Hargreaves, BA, T2 and T2* Relaxometry in the Meniscus using a Novel, Rapid Multi-Echo Steady State Sequence, International Society for Magnetic Resonance in Medicine 2013, Salt Lake City, USA, Oral Presentation

    • Jordan, JD, Monu, UD, McWalter, EJ, Watkins, RD, Chen, W, Bangerter, NK, Gold, GE, Hargreaves, BA, Sodium, T1ρ Mapping using CubeQuant and T2 mapping using DESS are Sufficiently Reproducible for In Vivo Studies, International Society for Magnetic Resonance in Medicine 2013, Salt Lake City, USA, Oral Presentation

    • Matzat, SJ, McWalter, EJ, Chen, W, Safran, MR, Gold, GE, Standard Deviation of T1ρ and T2 Relaxation Times Show Regional Changes in Hip Articular Cartilage of Patients with FAI, International Society for Magnetic Resonance in Medicine 2013, Salt Lake City, USA, Electronic Poster 3548

    • J-H Choi, J-H, Keil, A, Maier, A, Pal, S, McWalter, EJ, Fahrig, R, Fiducial Marker-Based Motion Compensation for the Acquisition of 3D Knee Geometry Under Weight-Bearing Conditions Using a C-Arm CT Scanner, Fifty-Fourth Annual Meeting of the American Association of Physicists in Medicine 2012, Med. Phys. 39, Oral Presentation 3973

    • McWalter, EJ, Sveinsson, B, Staroswiecki, E, Alley, MT, Hargreaves, BA, Gold, GE, Rapid 3D Quantitative DESS T2 and T2* Mapping in the Meniscus, International Society for Magnetic Resonance in Medicine 2012, Melbourne, Australia, Poster 1389

    • McWalter, EJ, O’Kane, C, Wilson, DR, Validation of an MRI-based method to assess patellofemoral contact areas in loaded knee flexion in vivo, Orthopaedic Research Society 2012, San Francisco, USA, Poster 850

    • Louman-Gardiner, KM, McWalter, EJ, Wilson, DR, Accuracy of a contact stress sensor for joint biomechanics measurements: effect of calibration protocol, Canadian Orthopaedic Research Society 2010, Edmonton, AB, Poster 300

    • Johnston, JD, Steeves, J, Kontulainen, S, McWalter, EJ, Masri, B, Wilson, DR, Computed Tomography Topographic Mapping of Subchondral Density (CT-TOMASD) in the Patella: Associations with Localized Cartilage Degeneration, Orthopaedic Research Society 2010, New Orleans, USA, Transactions 35, Short Talk Poster Presentation 295

    • McWalter, EJ, Wilson, DR, Harvey, WF, Lamb, KA, McCree, P, Hunter, DJ. Effect of a patellar brace on three-dimensional patellar tracking in subjects with patellofemoral osteoarthritis, Canadian Orthopaedic Research Society 2009, Whistler, BC, Podium Presentation 30

    • McWalter, EJ, Hunter, DJ, Wilson, DR. Effect of load on three-dimensional patellar kinematics, Orthopaedic Research Society 2008, San Francisco, USA, Transactions 33, Poster 1205

    • McWalter, EJ, Wilson, DC, Kacher, DF, Hunter, DJ, Wilson, DR. Three-dimensional patellar kinematics in weightbearing flexion using open MRI, World Congress of Biomechanics 2006, Munich, Germany, Podium Presentation 6740

    • McWalter, EJ, MacIntyre, NJ, Cibere, J, Wilson, DR, Does patellar alignment predict patellar kinematics? Orthopaedic Research Society 2005, Chicago, USA, Transactions 31, Podium Presentation 0165

    • McWalter, EJ, Cibere, J, Nicolaou, S, Eckstein, F, Wilson, DR. Links between varus-valgus alignment, cartilage morphology and three-dimensional patellar kinematics in knee osteoarthritis, World Congress on Osteoarthritis 2004, Chicago, USA, Osteoarthritis and Cartilage, 12(Supp 1):S60, Poster 146

    • McWalter, EJ, Wirth, W, Siebert, M, von Eisenhart-Rothe, R, Hudelmaier, M, Wilson, DR, Eckstein, F. Time savings using interactive input devices for cartilage segmentation, Combined Meeting of the Orthopaedic Research Societies 2004, Banff, AB, Podium Presentation 068

    • McWalter, EJ, Wilson, DR, Effect of x-ray tube position on joint space measurement at the patellofemoral joint. World Congress on Osteoarthritis 2003, Berlin, Germany, Osteoarthritis and Cartilage, 11(Supp 1): S73, Poster 202

    Research Grants

    Teaching

    2015-2016
    • ME226 - Mechanics III

    Research Projects