mri sacroiliac articulation. study of ankylosing spondyloarthritis patient

analyzing anatomy ankylosing arthritis autoimmune back canal clinic ct diagnose disc disease doctor examination healthcare human illness inferior joint lordosis lumbar magnetic medical mri negative nerve organs orthopedic patient pelvis prescription radiation raiter reactive reiters research resonant results sacroiliac sacrum scan science snapshot spine spondylitis spondyloarthritis stenosis tailbone therapy treatment vertebra xray