Biograph truepoint trueview 64

The subjects underwent test-retest examinations (mean time difference, 17 ± 44 d) in a fully integrated PET/MRI system (Biograph mMR; Siemens). To validate the accuracy of the IDIF, arterial blood samples were obtained from a radial artery. Moreover, after the PET/MRI examinations, a low-dose CT scan of the brain (120 kVp; 50 mAs) was acquired only for test examinations using a PET/CT system on-site (Biograph TruePoint TrueView 64; Siemens Healthineers) to compare the performance of MRI-based AC with that of CT-AC.

We studied 10 subjects, each of whom underwent 2 PET/MR scans (mean time difference = 17 ± 44 d) in a fully integrated PET/MRI system (Biograph mMR; Siemens Healthineers). To correct the PET study for involuntary subject motion, cGAN image preprocessing was performed before image coregistration, enabling the accurate determination of motion parameters in 3-dimensional (3D) space. These motion parameters were then used to extract the IDIF from the motion-corrected dynamic PET sequence (Fig. 1). To assess the accuracy of the IDIF, arterial blood samples were obtained from a radial artery. Finally, immediately after the PET/MRI examination, a low-dose CT scan of the brain (120 kVp, 50 mAs) was acquired once using a PET/CT system (Biograph TruePoint TrueView 64; Siemens Healthineers, USA) for the purpose of CT-based attenuation correction.