magnetic resonance imaging of lumbar spine: mass of medial aspect of L1 vertebra with isointense signal intensity (S/I) ratio
magnetic resonance imaging of lumbar spine: mass of medial aspect of l1 vertebra with isointense signal intensity (s/i) ratio
MRI lumbar osseous mass S/I ratio isointense L1 medial
mri lumbar osseous mass s/i ratio isointense l1 medial