The PRC implementations were tested and compared by means of contrast, noise, and convergence properties using the standard “NEMA Image Quality (IQ)” phantom, a modified NEMQ IQ phantom with changed hot spheres referred to as “Small-tumor” phantom and a “Bone–lung” phantom. Of note, the NEMA IQ phantom simulates hot lesions embedded in soft tissue (water) only (Additional file 1 : Fig. S1a). The Small-tumor phantom is a specially-modified phantom using the housing of the NEMA IQ phantom, with fillable spheres with diameters of 3.7, 4.8, 6.5, 7.7, 8.9, and 9.7 mm (Additional file 1 : Fig. S1b). The dedicated Bone–lung phantom simulates hot lesions embedded in lung and bone mimicking material, and thus, allows a comparison of the PRCs in a tissue-dependent environment (Additional file 1 : Fig. S1c). All phantom acquisitions were performed at the University Clinic Essen, Germany, using the Siemens mCT PET/CT system [20 (link)].
Mct pet ct system
Manufactured by Siemens
Sourced in Germany
The MCT PET/CT system is a medical imaging device that combines positron emission tomography (PET) and computed tomography (CT) technologies. It is designed to capture detailed images of the body's metabolic and anatomical features, providing healthcare professionals with comprehensive diagnostic information.
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2 protocols using mct pet ct system
1
Phantom Evaluation of PET Image Reconstruction
2
Multimodal PET/CT and PET/MR Imaging
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The evaluation involved 4 institutions, 4 PET/CT systems, and 3 PET/MR systems from major vendors: a Discovery 690 PET/CT system (GE Healthcare) and an Ingenuity TF PET/MR system (Philips Healthcare) at Turku PET Centre; an mCT PET/CT system (Siemens Healthcare) and an mMR PET/MR system (Siemens Healthcare) at Rigshospitalet, Copenhagen; a Discovery 690 PET/CT system and a Signa PET/MR system (GE Healthcare) at the PET Centre of University Hospital Zurich; and a Gemini TF64 PET/CT system (Philips Healthcare) at Hokkaido University Hospital, Sapporo. The performance characteristics of the systems have been previously described (1, 2, (17) (18) (19) (20) .
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