Fig. 3
From: Virtual non-calcium dual-energy CT: clinical applications
Spine dual-energy computed tomography. Standard grayscale series (a) shows typical findings of spondylarthrosis with vacuum phenomena in L3/L4 and L4/L5 intervertebral discs. Virtual non-calcium reconstruction with optimization for intervertebral disc analysis (b) can finely show the protrusion of lumbar discs (arrows), confirmed by magnetic resonance imaging T2-weighted sequence (c) (arrows). From Booz et al. [34]