From: Monitoring scanner calibration using the image-derived arterial blood SUV in whole-body FDG-PET
Site 1 | Site 2 | Site 3 | |
---|---|---|---|
Scanner type | Biograph 16 PET/CT, Siemens Medical Solutions, Knoxville, TN, USA | Ingenuity-TF PET/MR, Philips Healthcare, Best, The Netherlands | Biograph mCT 64 PET/CT, Siemens Medical Solutions, Knoxville, TN, USA |
PET calibration procedure | Vendor specific | Vendor specific | EARL certified |
Residual error | < 3% | < 4% | < 5% |
Scan duration per bed position [min] | 3 | 2 | 3 |
Reconstruction method | OSEM | BLOB-OS TF | PSF+TOF |
Iterations/subsets | 4i/8s | 3i/32s | 2i/21s |
PET | |||
Matrix size | 168×168 | 144×144 | 200×200 |
Voxel size | 4.1×4.1×5.0 mm3 | 4.0×4.0×4.0 mm3 | 4.1×4.1×3.0 mm3 |
Filter (FWHM) | Gaussian (5 mm) | n/a | Gaussian (5 mm) |
Attenuation correction | CTAC | MRAC (non-TC) | CTAC |
CT / MR | CT | MR | CT |
Matrix size | 512×512 | 320×320 | 512×512 |
Voxel size | 1.4×1.4×5.0 mm3 | 1.9×1.9×6.0 mm3 | 1.5×1.5×3.0 mm3 |