Demonstration of soft tissue hypoxia on MRI using external compression and muscle contraction.
Participant will undergo a single MRI examination. Standard orthopedic Sarmiento brace/ shell applied to participant's arm. Inside the brace will be a standard blood pressure cuff with a standard brace soft foam attached; blood pressure cuff will be partially inflated. Participant will also be asked to lift MRI compatible 10 lb. weight. Muscle oxygenation will be actively measured using MRI. No medications are being given, and no invasive devices are being used.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
75
Standard orthopedic Sarmiento brace/ shell applied to participant's arm. Inside the brace will be a standard blood pressure cuff with a soft foam attached. Pressure will be applied intermittently with blood pressure cuff. Participant will also be asked to lift MRI compatible 10 lb. weight.
Mount Sinai Hess Center
New York, New York, United States
RECRUITINGMuscle oxygen level
Using functional MRI to evaluate effect of muscle compression on muscle oxygen. Demonstrating statistically significant change in muscle oxygen in tissues with application of tissue compression and muscle contraction compared to the same, non-compressed tissues with only muscle contraction
Time frame: Day 1, during procedure
Deep tissue oxygen level
Using functional MRI to evaluate the effect of muscle compression and contraction on deep tissue oxygen. Demonstrate statistically greater decreased tissue oxygenation in the deep soft tissues compared to the superficial tissues below the deforming element, during application of tissue compression, during muscle contraction as well during application of tissue compression and muscle contraction.
Time frame: Day 1, during procedure
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