Figure 2: Qualitative evaluation and Semi-Quantitation of [18F]-FDG uptake. A qualitative review of bone marrow uptake was performed and scans were examined for their type of uptake (none, mild, prominent), and their pattern (diffuse, patchy, focal). Semi-quantitative parameters, standardized uptake values (SUVmax and AvSUV) were measured by drawing a VOI (volume of interest: 329 cm3) on a sagittal view from the mid-thoracic to the mid-lumbar region of the spine.