| Patient Care Specialty |
|
NMR imaging, NMR spectroscopy, NMR relaxometry, Muscle structure-function relationships, Diffusion-tensor MRI muscle fiber tracking, NIR spectroscopy and tomography, electromyography, muscle fatigue,NMR,Spectroscopy |
| Research
Specialty |
|
Development and application of novel imaging and spectroscopic approaches to studying muscle function. |
| Research
Description |
Proper neuromuscular function requires the coordination of multiple body systems, including those for motor command and coordination, energy delivery and utilization, and the generation and expression of force and other mechanical variables. We are using various imaging and spectroscopic approaches to study this integration, in both human and animal studies. These approaches include structural and physiological magnetic resonance imaging (MRI), biochemical studies using magnetic resonance spectroscopy (MRS), tissue oxygenation and blood flow measurements using near-infrared spectroscopy (NIRS), and assessments of motor unit activation using electromyography (EMG). Specific projects include:
Non-invasive Assessment of Muscle Microvascular Function: We have developed an MRI method for assessing changes in blood volume and oxygenation following brief isometric contractions in vivo. We are applying this technique to the study of microvascular dysfunction in persons with Type 2 Diabetes Mellitus.
Biophysical Basis of Muscle Functional MRI: Exercising muscles appear with increased signal intensity in certain types of MR images. These signal intensity changes result indirectly from the metabolic and hemodynamic responses of muscles to exercise. This approach has become known as muscle functional MRI (mfMRI). The objective of this project is to develop a comprehensive and quantitative description of the biophysical and physiological basis of mfMRI, in order to accelerate its application in physiological studies.
Structure-Function Relationships in Skeletal Muscle: The objective of this project is to develop and apply methods for non-invasive study of the relationship between skeletal muscle fibers? architectural properties and mechanical behavior during isometric contraction. In this project, we are combining diffusion-tensor MRI muscle fiber tracking methods, strain imaging, and mfMRI methods.
|
| Publications
|
|
Heemskerk, AM, Sinha, TK, Wilson, KJ, Ding, Z, Damon, BM. Quantitative assessment of DTI-based muscle fiber tracking and optimal tracking parameters. Magn Reson Med, 61(2), 467-72, 2009 Kan, JH, Heemskerk, AM, Ding, Z, Gregory, A, Mencio, G, Spindler, K, Damon, BM. DTI-based muscle fiber tracking of the quadriceps mechanism in lateral patellar dislocation. J Magn Reson Imaging, 29(3), 663-70, 2009 Louie, EA, Gochberg, DF, Does, MD, Damon, BM. Transverse relaxation and magnetization transfer in skeletal muscle: effect of pH. Magn Reson Med, 61(3), 560-9, 2009 Sanchez OA, Louie EA, Copenhaver EA, Damon BM. Repeatability of a dual gradient-recalled echo MRI method for monitoring post-isometric contraction blood volume and oxygenation changes. NMR in Biomedicine, in press, , 2009 Damon, BM. Effects of image noise in muscle diffusion tensor (DT)-MRI assessed using numerical simulations. Magn Reson Med, 60(4), 934-44, 2008 Damon, BM, Wadington, MC, Lansdown, DA, Hornberger, JL. Spatial heterogeneity in the muscle functional MRI signal intensity time course: effect of exercise intensity. Magn Reson Imaging, 26, 1114-1121, 2008 Kan, JH, Hernanz-Schulman, M, Damon, BM, Yu, C, Connolly, SA. MRI features of three paediatric intra-articular synovial lesions: a comparative study. Clin Radiol, 63(7), 805-12, 2008 Lee DJ, Mencio GA, Hernanz-Schulman M, Nealy BJ, Damon BM, Kan JH. Comparison of acute and subacute treatment of buckle fractures in the pediatric population. Journal of Family Practice, in press, , 2008 Damon, BM, Hornberger, JL, Wadington, MC, Lansdown, DA, Kent-Braun, JA. Dual gradient-echo MRI of post-contraction changes in skeletal muscle blood
volume and oxygenation. Magn Reson Med, 57(4), 670-9, 2007 Damon, BM, Louie, EA, Sanchez, OA. Physiological basis of muscle functional MRI. J Gravit Physiol, 14(1), P85-8, 2007 Damon, BM, Wadington, MC, Hornberger, JL, Lansdown, DA. Absolute and relative contributions of BOLD effects to the muscle functional MRI signal intensity time course: effect of exercise intensity. Magn Reson Med, 58(2), 335-45, 2007 Heemskerk AM and Damon BM. Diffusion Tensor MRI Assessment of Skeletal Muscle Architecture. Current Medical Imaging Reviews, 3( ), 152-160, 2007 Lansdown, DA, Ding, Z, Wadington, M, Hornberger, JL, Damon, BM. Quantitative Diffusion Tensor MRI-Based Fiber Tracking of Human Skeletal Muscle. J Appl Physiol, 103, 673-681, 2007 Maguire, MA, Weaver, TW, Damon, BM. Delayed Blood Reoxygenation following Maximum Voluntary Contraction. Med Sci Sports Exerc, 39(2), 257-67, 2007 Damon, BM, Gore, JC. Physiological basis of muscle functional MRI: predictions using a computer
model. J Appl Physiol, 98(1), 264-73, 2005 Damon BM, Gore JC. Biophysical basis of magnetic resonance imaging of small animals. Methods in Enzymology, 385(), 19-40, 2004 Damon, BM, Gore, JC. Biophysical basis of magnetic resonance imaging of small animals. Methods Enzymol, 385, 19-40, 2004 Wigmore DM, Damon BM, Pober DM, Kent-Braun JA.. MRI Measures of Perfusion-Related Changes in Human Skeletal Muscle During Progressive Contractions. Journal of Applied Physiology, 97(), 2385-2394, 2004 Damon, BM, Hsu, AC, Stark, HJ, Dawson, MJ. The carnosine C-2 proton''s chemical shift reports intracellular pH in oxidative and glycolytic muscle fibers. Magn Reson Med, 49(2), 233-40, 2003 Damon, BM, Wigmore, DM, Ding, Z, Gore, JC, Kent-Braun, JA. Cluster analysis of muscle functional MRI data. J Appl Physiol, 95(3), 1287-96, 2003 Price TB, Kamen G, Damon BM, Knight CA, Applegate B, Gore JC, Eward K, Signorile JF. Comparison of MRI and EMG to study muscle activation by dynamic plantar flexion. Magnetic Resonance Imaging, 21(8), 853-861, 2003 Sacristan E, Baheza RA, Rodriguez AO, Does MD, Damon BM, Gore JC. Dual frequency coil and MRIS method for the characterization of ischemic injury in the intestinal wall. Annual International Conference of the IEEE Engineering in Medicine and Biology ? Proceedings, 1, 474-477, 2003 Damon BM, Ding Z, Anderson AW, Freyer AS, Gore JC. Validation of diffusion tensor MRI-based muscle fiber tracking. Magnetic Resonance in Medicine, 48, 97-104, 2002 Damon BM, Gregory CD, Hall KL, Stark HJ, Gulani V, Dawson MJ. Intracellular acidification and volume increases explain 1H R2 decreases during exercise. Magnetic Resonance in Medicine, 47, 14-23, 2002 Ivy JL, Goforth HW, Damon BM, McCauley TR, Parsons EC, Price TB. Early post-exercise muscle glycogen recovery is enhanced with a carbohydrate-protein supplement. Journal of Applied Physiology, 93, 1337-1344, 2002 Bruce BC, Carragher BO, Damon BM, Dawson MJ, Eurell JA, Gregory CD, Lauterbur PC, Marjanovic MM, Mason-Fossum B, Morris HD, Potter CS, Thakkar U. Chickscope: an interactive MRI classroom curriculum innovation for K-12. Computers and Education Special Issue on Multimedia, 29, 73-87, 1997 |
| Postdoctoral
Position Available |
|
N/A |
| Postdoctoral
Position Details |
|
N/A |
|