PMC5857345_01
Computed tomography (CT) myelography images from a 73-year-old man (body weight 56 kg) with severe lumbar canal stenosis at the level of L1-L2 and multiple compression fractures (T10, T12, and L1). (a) Sagittal conventional CT myelography image. (b) Sagittal virtual monochromatic image (55 keV). (c) Sagittal virtual monochromatic image (40 keV). (d) Axial conventional CT myelography image at T6. (e) Axial virtual monochromatic image (55 keV). (f) Axial virtual monochromatic image (40 keV). The window setting was as follows: window width, 1250 Hounsfield units; window level, 250 Hounsfield units.
CRIOR2018-1468929.001.jpg
PMC5857345_01_CRIOR2018-1468929.001.jpg
fig1
The CT myelogram also showed compression fractures of L2 and L3 with associated lumbar canal stenosis (Figure 1). The contrast attenuation in the spinal canal at 40 and 55 keV is better compared with that of the conventional images (Figure 1). The conventional and virtual monochromatic images are shown in Figure 1.