myelopathy, valve, lesions, lesion, area, segment, dilatation, valves, artery, arteries, disease, orifice, segments, areas, vessels, murmur, canal, vessel, region, site, jet, flow, kidney, plaques, plaque, portion, lumen, changes, process, dilation, symptoms, murmurs, zone, nares, canals, ring, regions, tract, jets, grafts, phase, opening, infundibulum, gradient, anastomosis, resistance, leaflets, aortic, obstruction, cervix, sites, trachea, meatus, narrowing, orifices, shunts, graft, bowel, duct, mitral, sounds, vein, origin, turbulence, signal, aneurysm, airway, increases, fistulas, kidneys, veins, tumors, patient, aorta, atherosclerosis, diameter, channel, dilatations, urethra, pulmonary