the skull with 2 min per bed position for PET imaging (n = 4 patients on a GEMINI TF 64-slice PET/CT and n = 4 patients on a GEMINI TF Big Bore PET/CT, Philips Healthcare, Cleveland, USA; both scanners had the same PET-detector system and identical image characteristics [42])....
In our clinical practice, we use a dual-source DECT scanner (Somatom® Definition Force, Siemens Healthcare, Forchheim, Germany). At our institution, the injection of contrast material is performed under ultrasound or radioscopic guidance with a 22-gauge spinal needle, according to the operator...