100 likes | 253 Views
Sarcolemmal Displacement. Will Adams. Cardiac Myopathies. Dilated Cardiomyopathy. Physiological. medlib.med.utah.edu. Hypertrophy (concentric). medic.med.uth.tmc.edu. Individual Myocyte Geometry. H = 50nm. H = 50nm. R = 10µm. R = 16µm. L = 80µm. L = 80µm. H = 50nm. R = 10µm.
E N D
Sarcolemmal Displacement Will Adams Disease Biophysics Group Will Adams
Cardiac Myopathies Dilated Cardiomyopathy Physiological medlib.med.utah.edu Hypertrophy (concentric) medic.med.uth.tmc.edu Disease Biophysics Group Will Adams
Individual Myocyte Geometry H = 50nm H = 50nm R = 10µm R = 16µm L = 80µm L = 80µm H = 50nm R = 10µm L = 110µm Physiological Concentric Hypertrophy Dilated Cardiac Myopathy (eccentric hypertrophy) Disease Biophysics Group Will Adams
Displacement • Why displacement? • Mechanical energy dissipated from internal viscosity will depend on displacement and velocity • Perhaps the pathological morphology of the heart is maladaptive not only on a macroscale (ejection fraction) but on a microscale (intracellular drag) Disease Biophysics Group Will Adams
Longitudinal Displacement Stress Displacement Disease Biophysics Group Will Adams
Longitudinal Displacement Disease Biophysics Group Will Adams
Transverse Displacement Disease Biophysics Group Will Adams
Results Critical Ejection Fraction Diastole Systole Hypertension Disease Biophysics Group Will Adams
Directions • Maintain cytosolic volume conservation • Intregrate a t-tubule network into ABAQUS http://mednote.co.kr/ Disease Biophysics Group Will Adams
Acknowledgements • Adrian Podpirka Disease Biophysics Group Will Adams