Garantia de qualidade em medicina nuclear

Abstract

The main objective of the present dissertation was to execute and implement Quality Control (QC) protocols of the main equipment of the HPP-Molecular Medicine of Porto (HPP) and the Lenitudes- Medical Center & Research (LMCR) from the Lenitudes Group SGPS as an integrative part of the Quality Guarantee system. The QC nuclear medicine instrumentation is crucial due to its precise and reproducible performance that ensures an adequate operative system, the safety of patients and professional workers and guarantees the correct diagnostic and therapeutical procedures. Hence, routine QC tests of the existing equipment were carried out in both services, specifically dose calibrators, gamma cameras and PET/CT tests. In an initial phase, the accuracy, constancy, linearity and the geometry of the dose calibrators were evaluated. Next, QC tests of the gamma cameras were performed such as uniformity tests, center of rotation and the spatial resolution and linearity. Ultimately, the quality of the PET/TC image was analyzed. The obtained results were compared to the limits accepted by the current Portuguese legislation, with the manufacturers’ specifications and international guidelines. The detection of coherent values and the good operation of the equipment were observed from the analysis of the results. Furthermore, the application and execution of corrective measures were also deduced from the results analysis. From the QC execution and its analysis, QC protocols were developed and implemented in both services. The procedures are represented as future guidelines for QC analysis in the medical services.

Date of Award	24 Jan 2018
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Joana Vale (Supervisor) & Diogo Alexandre Borges de Faria (Co-Supervisor)