Research on performance tests and evaluation for mCT PET/CT / 中国医学装备

ABSTRACT

Objective:It is to discuss results and significance of PET/CT in the performance tests.Methods: According to NEMA NU 2-2007 Performance Measurements of Positron Emission Tomographs and GB 17589-2011 specifications for quality assurance test for computed tomography X-ray scanners standards, with phantoms of nuclear medicine and CT, performance testing was done.Results: Spatial Resolution (FWHM) transverse 1 cm 4.16 mm, axial 1 cm 4.04 mm, transverse 10 cm 4.92 mm, axial 10 cm 5.74 mm. Sensitivity 9.6 s-1·kBq-1, scatter fraction 35.4%, peak NEC rate 1.69×105 s-1.Conclusion: According to manufacturers and national standards, the results of performances testing are up to standard. It is necessary to enhance the effect of in quality control(QC) of PET/CT and the fundamentality of the performance tests, so that the devices come to the demands for clinical practice.