Richard B Souza

Summary

Affiliation: University of California
Country: USA

Publications

  1. pmc Response of knee cartilage T1rho and T2 relaxation times to in vivo mechanical loading in individuals with and without knee osteoarthritis
    R B Souza
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA, United States Electronic address
    Osteoarthritis Cartilage 22:1367-76. 2014
  2. doi Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA, 94107, USA
    Knee Surg Sports Traumatol Arthrosc 23:188-97. 2015
  3. pmc T1rho MRI relaxation in knee OA subjects with varying sizes of cartilage lesions
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA
    Knee 20:113-9. 2013
  4. doi Relationship between knee kinetics during jumping tasks and knee articular cartilage MRI T1rho and T2 relaxation times
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA 94107, USA
    Clin Biomech (Bristol, Avon) 27:403-8. 2012
  5. pmc Effects of unloading on knee articular cartilage T1rho and T2 magnetic resonance imaging relaxation times: a case series
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA, USA
    J Orthop Sports Phys Ther 42:511-20. 2012
  6. doi The effects of acute loading on T1rho and T2 relaxation times of tibiofemoral articular cartilage
    R B Souza
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94107, USA
    Osteoarthritis Cartilage 18:1557-63. 2010
  7. ncbi Patellar tendinopathy alters the distribution of lower extremity net joint moments during hopping
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA
    J Appl Biomech 26:249-55. 2010
  8. doi T1ρ imaging demonstrates early changes in the lateral patella in patients with patellofemoral pain and maltracking
    Daniel U Thuillier
    Department of Orthopaedic Surgery, University of California, San Francisco, 500 Parnassus Avenue, MUW 3rd Floor, Box 0728, San Francisco, CA 94143, USA
    Am J Sports Med 41:1813-8. 2013
  9. doi Quadriceps and hamstrings morphology is related to walking mechanics and knee cartilage MRI relaxation times in young adults
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA
    J Orthop Sports Phys Ther 43:881-90. 2013
  10. doi Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California, San Francisco, 1700 4th Street, Suite 203 Byers Hall, San Francisco, California
    J Orthop Res 33:527-34. 2015

Collaborators

Detail Information

Publications25

  1. pmc Response of knee cartilage T1rho and T2 relaxation times to in vivo mechanical loading in individuals with and without knee osteoarthritis
    R B Souza
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA, United States Electronic address
    Osteoarthritis Cartilage 22:1367-76. 2014
    ..The objective of this study was to evaluate the effects of mechanical loading on knee articular cartilage T1ρ and T2 relaxation times in patients with and without osteoarthritis (OA)...
  2. doi Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA, 94107, USA
    Knee Surg Sports Traumatol Arthrosc 23:188-97. 2015
    ..It is hypothesize that abnormal tibiofemoral kinematics and relaxation time elevation (a reflection of changes in cartilage biochemical composition) in the weight-bearing regions of the knees following meniscectomy will be observed...
  3. pmc T1rho MRI relaxation in knee OA subjects with varying sizes of cartilage lesions
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA
    Knee 20:113-9. 2013
    ..The purpose of this investigation is to evaluate the T(1ρ) relaxation times of articular cartilage surrounding focal defects in the tibiofemoral joint...
  4. doi Relationship between knee kinetics during jumping tasks and knee articular cartilage MRI T1rho and T2 relaxation times
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA 94107, USA
    Clin Biomech (Bristol, Avon) 27:403-8. 2012
    ..The purpose of this study was to evaluate the relationship of cartilage T(1ρ) and T(2) relaxation times with loading kinetics during jumping tasks in healthy young individuals...
  5. pmc Effects of unloading on knee articular cartilage T1rho and T2 magnetic resonance imaging relaxation times: a case series
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA, USA
    J Orthop Sports Phys Ther 42:511-20. 2012
    ..Case series...
  6. doi The effects of acute loading on T1rho and T2 relaxation times of tibiofemoral articular cartilage
    R B Souza
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94107, USA
    Osteoarthritis Cartilage 18:1557-63. 2010
    ..To evaluate the effect of acute loading on healthy and osteoarthritic knee cartilage T(1ρ) and T(2) relaxation times...
  7. ncbi Patellar tendinopathy alters the distribution of lower extremity net joint moments during hopping
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA
    J Appl Biomech 26:249-55. 2010
    ..006) compared with the control subjects. Shifting the workload away from the knee and toward the hip may result in a detrimental increase in hip demand and potentially harmful long-term effects on the articular cartilage of the hip...
  8. doi T1ρ imaging demonstrates early changes in the lateral patella in patients with patellofemoral pain and maltracking
    Daniel U Thuillier
    Department of Orthopaedic Surgery, University of California, San Francisco, 500 Parnassus Avenue, MUW 3rd Floor, Box 0728, San Francisco, CA 94143, USA
    Am J Sports Med 41:1813-8. 2013
    ....
  9. doi Quadriceps and hamstrings morphology is related to walking mechanics and knee cartilage MRI relaxation times in young adults
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA
    J Orthop Sports Phys Ther 43:881-90. 2013
    ..Controlled laboratory study using a cross-sectional design...
  10. doi Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California, San Francisco, 1700 4th Street, Suite 203 Byers Hall, San Francisco, California
    J Orthop Res 33:527-34. 2015
    ..2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 33:527-534, 2015. ..
  11. pmc Changes in MR relaxation times of the meniscus with acute loading: an in vivo pilot study in knee osteoarthritis
    Karupppasamy Subburaj
    Musculoskeletal and Quantitative Imaging Research Group Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
    J Magn Reson Imaging 41:536-43. 2015
    ..To prospectively evaluate changes in T1ρ and T2 relaxation times in the meniscal body with acute loading using MRI in osteoarthritic knees and to compare these findings with those of age-matched healthy controls...
  12. pmc Abnormal tibiofemoral kinematics following ACL reconstruction are associated with early cartilage matrix degeneration measured by MRI T1rho
    Bryan Haughom
    University of California San Francisco, School of Medicine, USA
    Knee 19:482-7. 2012
    ..Our study aimed to evaluate kinematics following ACL-reconstruction, cartilage health (using T(1ρ) MRI), and assess whether altered kinematics following ACL-reconstruction are associated with early cartilage degeneration...
  13. doi Physical activity and spatial differences in medial knee t1rho and t2 relaxation times in knee osteoarthritis
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA
    J Orthop Sports Phys Ther 44:964-72. 2014
    ..J Orthop Sports Phys Ther 2014;44(12):964-972. Epub 29 October 2014. doi:10.2519/jospt.2014.5523. ..
  14. pmc The acute effect of running on knee articular cartilage and meniscus magnetic resonance relaxation times in young healthy adults
    Karupppasamy Subburaj
    Department of Radiology and Biomedical Imaging, University of California San Francisco, 1700 4th St, Suite 203, San Francisco, CA 94158, USA
    Am J Sports Med 40:2134-41. 2012
    ....
  15. pmc Differences in the association of hip cartilage lesions and cam-type femoroacetabular impingement with movement patterns: a preliminary study
    Deepak Kumar
    Musculoskeletal Quantitative Imaging Research Group, Radiology and Biomedical Imaging, University of California San Francisco, 1700 4th St, Suite 203, Byers Hall, UCSF Mission Bay, San Francisco, CA 94158 Electronic address
    PM R 6:681-9. 2014
    ....
  16. doi Knee extensor dynamics in the volleyball approach jump: the influence of patellar tendinopathy
    Shawn C Sorenson
    Jacqueline Perry Musculoskeletal Biomechanics Research Laboratory, University of Southern California, Los Angeles, CA, USA
    J Orthop Sports Phys Ther 40:568-76. 2010
    ..Controlled laboratory study using a cross-sectional design...
  17. pmc Loading of the knee during 3.0T MRI is associated with significantly increased medial meniscus extrusion in mild and moderate osteoarthritis
    Christoph Stehling
    Musculoskeletal and Quantitative Imaging Group, Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
    Eur J Radiol 81:1839-45. 2012
    ..The aim is to study the influence of loading of different knee structures at 3Tesla (T) in subjects with osteoarthritis (OA) and normal controls...
  18. pmc Magnetic resonance analysis of loaded meniscus deformation: a novel technique comparing participants with and without radiographic knee osteoarthritis
    Toran D MacLeod
    Department of Physical Therapy, California State University, 6000 J Street, Sacramento, CA, 95819 6020, USA
    Skeletal Radiol 44:125-35. 2015
    ..The secondary purpose of this experiment was to evaluate group differences in meniscal deformation in participants with and without radiographic knee OA...
  19. pmc Frontal plane knee mechanics and medial cartilage MR relaxation times in individuals with ACL reconstruction: A pilot study
    Deepak Kumar
    Department of Radiology and Biomedical Imaging, UCSF, United States Electronic address
    Knee 21:881-5. 2014
    ..The objective of this pilot study was to evaluate cartilage T1ρ and T2 relaxation times and knee mechanics during walking and drop-landing for individuals with anterior cruciate ligament reconstruction (ACL-R)...
  20. pmc Local tissue properties of human osteoarthritic cartilage correlate with magnetic resonance T(1) rho relaxation times
    Simon Y Tang
    Department of Orthopaedic Surgery, University of California, San Francisco, California, USA
    J Orthop Res 29:1312-9. 2011
    ..These findings suggest that MRI T(1ρ) can provide a functional assessment of articular cartilage...
  21. pmc Non-traumatic anterior cruciate ligament abnormalities and their relationship to osteoarthritis using morphological grading and cartilage T2 relaxation times: data from the Osteoarthritis Initiative (OAI)
    Keegan K Hovis
    Musculoskeletal and Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry Street, Suite 350, San Francisco, CA 94107, USA
    Skeletal Radiol 41:1435-43. 2012
    ..The aim of this work was to study anterior cruciate ligament (ACL) degeneration in relation to MRI-based morphological knee abnormalities and cartilage T2 relaxation times in subjects with symptomatic osteoarthritis...
  22. pmc Physical activity is associated with magnetic resonance imaging-based knee cartilage T2 measurements in asymptomatic subjects with and those without osteoarthritis risk factors
    Keegan K Hovis
    University of California, San Francisco, USA
    Arthritis Rheum 63:2248-56. 2011
    ....
  23. pmc Bone marrow changes related to disuse
    Lorenzo Nardo
    Musculoskeletal and Quantitative Imaging Group MQIR, Department of Radiology, University of California, San Francisco, San Francisco, CA, USA
    Eur Radiol 23:3422-31. 2013
    ..To evaluate bone marrow changes on knee magnetic resonance imaging (MRI) in patients with 3- to 6-week-long period of unloading...
  24. doi Femur rotation and patellofemoral joint kinematics: a weight-bearing magnetic resonance imaging analysis
    Richard B Souza
    Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA
    J Orthop Sports Phys Ther 40:277-85. 2010
    ..Controlled laboratory study using a cross-sectional design...
  25. doi Pediatric endurance and limb strengthening (PEDALS) for children with cerebral palsy using stationary cycling: a randomized controlled trial
    Eileen G Fowler
    Department of Orthopaedic Surgery, UCLA Orthopaedic Hospital Center for Cerebral Palsy, University of California at Los Angeles, CA, USA
    Phys Ther 90:367-81. 2010
    ..Effective interventions to improve and maintain strength (force-generating capacity) and endurance are needed for children with cerebral palsy (CP)...