“…Such developments have been the subject of recent reviews. 9,[20][21][22][23][24][25] For example, ultrasound, 26,27 computed tomography (CT), 21,22,28 magnetic resonance imaging (MRI), [29][30][31][32] optical 20 and nuclear medicine techniques 20,23,24,[33][34][35][36][37] have all been used to improve diagnostic confidence. [38][39][40] The numerous advantages of FDG-PET imaging include a higher spatial resolution in comparison to conventional nuclear medicine modalities, fast examination time (result available within 1-2 hours after tracer administration), the ability to differentiate between hematopoietic bone marrow and activated white blood cells (WBCs), and potential application to treatment monitoring.…”