Digital PET compliance to EARL accreditation specifications
نویسندگان
چکیده
BACKGROUND Our aim was to evaluate if a recently introduced TOF PET system with digital photon counting technology (Philips Healthcare), potentially providing an improved image quality over analogue systems, can fulfil EANM research Ltd (EARL) accreditation specifications for tumour imaging with FDG-PET/CT. FINDINGS We have performed a phantom study on a digital TOF PET system using a NEMA NU2-2001 image quality phantom with six fillable spheres. Phantom preparation and PET/CT acquisition were performed according to the European Association of Nuclear Medicine (EANM) guidelines. We made list-mode ordered-subsets expectation maximization (OSEM) TOF PET reconstructions, with default settings, three voxel sizes (4 × 4 × 4 mm3, 2 × 2 × 2 mm3 and 1 × 1 × 1 mm3) and with/without point spread function (PSF) modelling. On each PET dataset, mean and maximum activity concentration recovery coefficients (RCmean and RCmax) were calculated for all phantom spheres and compared to EARL accreditation specifications. The RCs of the 4 × 4 × 4 mm3 voxel dataset without PSF modelling proved closest to EARL specifications. Next, we added a Gaussian post-smoothing filter with varying kernel widths of 1-7 mm. EARL specifications were fulfilled when using kernel widths of 2 to 4 mm. CONCLUSIONS TOF PET using digital photon counting technology fulfils EARL accreditation specifications for FDG-PET/CT tumour imaging when using an OSEM reconstruction with 4 × 4 × 4 mm3 voxels, no PSF modelling and including a Gaussian post-smoothing filter of 2 to 4 mm.
منابع مشابه
Technical note: how to determine the FDG activity for tumour PET imaging that satisfies European guidelines
BACKGROUND For tumour imaging with PET, the literature proposes to administer a patient-specific FDG activity that depends quadratically on a patient's body weight. However, a practical approach on how to implement such a protocol in clinical practice is currently lacking. We aimed to provide a practical method to determine a FDG activity formula for whole-body PET examinations that satisfies b...
متن کاملAccreditation of diagnostic imaging services in developing countries.
In recent decades, medical imaging has experienced a technological revolution. After conducting several surveys to assess the quality and safety of diagnostic imaging services in Latin America and the Caribbean, the Pan American Health Organization (PAHO) developed a basic accreditation program that can be implemented by the ministry of health of any developing country. Patterned after the Amer...
متن کاملEvaluation of Compliance with Accreditation Standards during Corona Virus Pandemic among Staff of Masih Daneshvari Hospital
Introduction: After the increase in the incidence and global spread of Covid-19 virus, medical centers faced a number of problems and challenges following this crisis. In order to increase the quality and safety of medical services and their optimal management, both in critical and non-critical situations, health care providers in different countries of the world have used various methods that ...
متن کاملCertification of Esra-compliant Software Defined Radios
section: 6.6 Waveform Portability, 17.1 SDR Performance Certification and Accreditation
متن کاملThe Factors and Impacts of Large-Scale Digital Content Accreditations
E-learning is an important and widespread contemporary trend in education. Because its success depends on the quality of digital materials, the mechanism by which such materials are accredited has received considerable attention and has influenced the design and implementation of digital courseware. For this reason, this study examined the mechanism by which digital materials are accredited in ...
متن کامل