Myocardial perfusion imaging parameters: IQ-SPECT and conventional SPET system comparison
Jazyk angličtina Země Řecko Médium print
Typ dokumentu srovnávací studie, časopisecké články, randomizované kontrolované studie
PubMed
25526755
Knihovny.cz E-zdroje
- MeSH
- dysfunkce levé srdeční komory diagnostické zobrazování etiologie MeSH
- jednofotonová emisní výpočetní tomografie metody MeSH
- lidé středního věku MeSH
- lidé MeSH
- nemoci koronárních tepen komplikace diagnostické zobrazování MeSH
- reprodukovatelnost výsledků MeSH
- senzitivita a specificita MeSH
- srdeční akcí synchronizované zobrazovací metody metody MeSH
- tepový objem * MeSH
- vylepšení obrazu metody MeSH
- zátěžový test MeSH
- zobrazování myokardiální perfuze metody MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- randomizované kontrolované studie MeSH
- srovnávací studie MeSH
Technological advancement in hardware and software development in myocardial perfusion imaging (MPI) leads to the shortening of acquisition time and reduction of the radiation burden to patients. We compared semiquantitative perfusion results and functional parameters of the left ventricle between new dedicated cardiac system with astigmatic collimators called IQ-SPECT (Siemens Medical Solutions, USA) and conventional single photon emission tomography (SPET) system equipped with standard low energy high resolution collimators. A group of randomly selected 81 patients underwent consecutively the MPI procedure on IQ-SPECT and on conventional SPET systen, both without attenuation correction. The summed scores and the values of the functional parameters of the left ventricle: ejection fraction (EF), end-systolic and end-diastolic volumes (ESV, EDV) received from the automatic analysis software were compared and statistically analyzed. Our results showed that summed scores values were significantly higher for the IQ-SPECT system in comparison to the conventional one. Calculated EF were significantly lower for IQ-SPECT, whereas evaluated left ventricular volumes (LVV) were significantly higher for this system. In conclusion, we recorded significant differences in automatically calculated semiquantitative perfusion and functional parameters when compared uncorrected studies obtained by the IQ-SPECT with the conventional SPET system.