Figure 2.
Patients with primary aldosteronism display increased hematopoietic activity.
A, The 18FDG uptake was measured in 3 nonvascular regions of interest (ROIs): in the bone marrow (corpora L2 and L3) and spleen to determine hematopoietic activity, and in the liver. The 18F-FDG uptake in liver tissue was used as background. B, The TBR was higher in the bone marrow, C, but similar in the spleen. D, Also, liver SUV was comparable between patients and controls. TBR, target-to-background ratio. SUV, standardized uptake value. *P < .05.