Single Photon Emission Computed Tomography (SPECT) is a nuclear medicine imaging technique that allows for the three-dimensional visualization of radioactive tracers within the human body. The process involves the detection of gamma rays emitted by a radioactive substance introduced into the body, and the reconstruction of these signals into detailed images. Additionally, non-imaging equipment including Dose calibrator such as Comecer and Capintec are essential in acquiring detailed images of human body by the imaging equipment. For efficient performance of the imaging and non-imaging equipment in nuclear medicine effective and efficient quality control is recommended.

This study was to assess the performance of the imaging and non-imaging equipment based on equipment specification as recommended by the manufacturers.

The study was done by physical and mechanical inspection of the Comecer, Capintec dose calibrators and the gamma camera SPECT system and assessing the performance of the Comecer, Capintec and gamma camera SPECT system at the Nuclear Medicine department according to standardized protocols. Furthermore, the effectiveness of the dose calibrators by performing four comprehensive quality control test including Linearity, Constancy, Accuracy and Geometry tests. The SPECT system equipment was evaluated by performing Total Performance, Tomographic Uniformity, Sensitivity, Spatial Resolution, energy resolution (FWHM), Maximum Count Rate, Centre of Rotation, Extrinsic Uniformity Tests using Planar sensitivity, Jasczcak, Quadrant Bar and Flood Field Uniformity Phantoms”.

The quality control test performed on the two calibrators and the SPECT scanner show proper functioning, accuracy and reliability in measuring the activity of radioactive substance and provide good image quality respectively. The assessment of Comecer and Capintec dose calibrators shows that the Linearity, Constancy, Accuracy and Geometry test were all within the accepted limit as recommended by the manufacturer. The assessment of the SPECT system in terms of FWHM), Total Performance, Tomographic Uniformity, Sensitivity, Spatial Resolution, Maximum Count Rate, Centre of Rotation, Extrinsic Uniformity shows consistent results, hence passed the accepted manufacturer’s recommendations.

The comprehensive assessment of the imaging and non-imaging equipment shows consistent, efficient and effective performance as all the equipment passed the manufacturer’s recommended quality control test for both the dose calibrator and the SPECT system.