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Daily test of the AXIS scintigraphic camera quality in the Nuclear Medicine Department in Pribram as an indicator of the apparatus stability for the last 5 years
 HEFKA, Pavel
Daily test of the AXIS scintigraphic camera quality in the Nuclear Medicine Department in Pribram as an indicator of the apparatus stability for the last 5 years This Thesis is devoted to the choice of the most suitable routine check of the AXIS scintigraphic camera in the Nuclear Medicine Department in Pribram. In my Thesis I focused on the analysis of the recommended procedures and choice of the method, which during the routine operation of nuclear medicine will sufficiently prove the quality of the preparation of the apparatus for the examination and is not very time-consuming. The result of such an optimization analysis is the check procedure of the internal image homogeneity, which fully respects SÚJB recommendations and procedures recommended by the producer of the AXIS scintigraphic camera. Performance of the chosen method is described in detail and the method of the recording, acquisition and evaluation of the acquired data is presented. Checking of the AXIS apparatus in the described way has been performed in the Nuclear Medicine Department in Pribram for a long time. It enabled me to make an analysis of the long-term stability of the apparatus for the last 5 years. Acquired results have been compared with information given by the producer and results of the similar device in the Czech Republic. For clarity purposes the presentation of the recorded data and acquired results is arranged in tables and graphs. Collected data confirmed that the homogeneity values measured by means of the point source correspond well to the data stated for this apparatus by the producer. This has also confirmed my hypothesis on the correct choice of the method for testing the homogeneity by means of the point source. Therefore it is possible to state that the AXIS gamma camera with the supplement for the detection of positron emitters is stable and it is possible to apply it in the routine clinical operation even after 10 years of use provided that the good service care is ensured.
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