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Orientador(es)
Resumo(s)
Myocardial Perfusion Gated Single Photon Emission Tomography (Gated-SPET) imaging is used for the combined evaluation of myocardial perfusion and left ventricular (LV) function. But standard protocols of the
Gated-SPECT studies require long acquisition times for each study. It is therefore important to reduce as much as possible the total duration of image acquisition. However, it is known that this reduction leads to decrease on counts statistics per projection and raises doubts about the validity of the functional parameters determined by Gated-SPECT. Considering that, it’s difficult to carry out this analysis in
real patients. For ethical, logistical and economical matters, simulated studies could be required for this analysis. Objective: Evaluate the influence of the total number of counts acquired from myocardium, in the calculation of myocardial functional parameters (LVEF – left ventricular ejection
fraction, EDV – end-diastolic volume, ESV – end-sistolic volume) using routine software procedures.
Descrição
Palavras-chave
Nuclear medicine Myocardium Gated-SPECT Left ventricular ejection fraction End-diastolic volume End-sistolic volume
Contexto Educativo
Citação
Vieira L, Sousa E, Vaz T, Costa DC, Almeida P. Study of the influence of count’s number in myocardium in the determination of reproducible functional parameters in Gated-SPECT studies simulated with GATE. In EANM'2012 - Annual Congress of European Association of Nuclear Medicine, Milan (Italy), 27th-30th October 2012. Poster.