engleski

Advance on image processing and optimization procedures in SPECT/CT imaging

Hybrid SPECT/CT imaging systems used in nuclear medicine necessitate imaging data assessment and optimization of imaging procedures. Development of advanced independent image processing, post- processing and analysis procedures can considerably contribute to the efficiency and comprehensiveness of the quality programme. Once system performances are quantitatively validated and relevant physical parameters are calculated, methodology related to the optimization of respective medical procedures could be performed to enhance quality of imaging data. Medical Physics Department of the University Hospital Rijeka has long history of dealing with quality system related to application of ionizing radiation in medicine. An advanced parts of the system are developed with International Atomic Energy Agency (IAEA) support under projects of technical cooperation. Therefore, abovementioned activities are planned to be performed under the IAEA project CRO6021: The Implementation of advanced quality assurance and quality control (QA/QC) programme in nuclear medicine. The project is led by the Medical Physics Department of the University Hospital Rijeka and will be conducted during the 2022-2023. Associate institution is General Hospital Pula, Croatia. Initial results can be divided in two parts: one concerning advanced image processing algorithms dedicated to the evaluation of essential physical parameters, as intrinsic uniformity, modulation transfer function (MTF), spatial resolution, and acquisition time optimization. Development of independent algorithms require understanding of respective physical principals and mathematical models which enable control of calculation process. The second part is dedicated to the optimization of the Myocardial Perfusion Imaging (MPI) in two collaborating hospitals. Assessment of different imaging device-reconstruction algorithm-correction combinations using an anthropomorphic phantom was performed through evaluation of spatial resolution and contrast-to- noise ratio.

SPECT/CT imaging, quality assurance, image processing, myocardial perfusion imaging

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