Fig. 1

Bone marrow phantom for dual-energy CT scanners. a Reformat of an ultra-high-resolution CT scan of three tubes filled with water, oil (as yellow marrow analogue/YMA) and blood (as red marrow analogue/RMA) and partially filled with bone granulate. Note that the granulate was more densely packed in the transition between fluid with bone and fluid without bone. This area was avoided in the analysis. b The phantom as placed in the CT scanner. c Settings used in the bone marrow oedema application class in Syngo.Via. d 3D rendering of the volumes of interest measured, which gives six unique measurement compartments, three compartments of fluid with bone and three of fluid without bone