Figure 1From: A method for quantitative measurement of lumbar intervertebral disc structures: an intra- and inter-rater agreement and reliability study Positioning of measured structures (a - i) ; (a - b) Anterior intervertebral height ; (c- d) Posterior intervertebral height; (e - f) Anterior disc material ; ( f - g) Intervertebral disc; (g - h ) Posterior disc material; (h - i) Dural sac. Back to article page