Fig. 3From: Lumbar spine MRI in upright position for diagnosing acute and chronic low back pain: statistical analysis of morphological changesFast spin echo (FSE) T2-weighted magnetic resonance images (MRI) in the sagittal plane. Assessment of changes in interspinous distance (white arrows) and amplitude of the dural sac (black bars) in the transition from a clinostatism to b orthostasis Back to article page