775 KB31 KB199220252024Gužič-Salobir, BarbaraŠtalc, MonikaŠtrok, AnjaZaletel, Katjaštevilka:3letnik:58str. 313-319, IDOI:10.2478/raon-2024-0053ISSN:1318-2099COBISSID:210650883URN:URN:NBN:SI:doc-TXFPORFSenCroatian Medical Association - Croatian Society of RadiologySlovenian Medical Society - Section of RadiologyRadiology and oncology (Ljubljana)artefaktienofotonska emisijska računalniška tomografijaishemija miokardascintigrafijaslikanje miokardne perfuzijesubdiafragmalna aktivnostSubdiaphragmatic activity-related artifacts in myocardial perfusion scintigraphy|Background. Myocardial perfusion imaging (MPI) with single photon emission computed tomography is an established non-invasive technique for assessing myocardial ischemia. This method involves the intravenous administration of a radiopharmaceutical that accumulates in the heart muscle proportional to regional blood flow. However, image quality and diagnostic accuracy can be compromised by various technical and patient-related factors, including high non-specific radiopharmaceutical uptake in abdominal organs such as the stomach, intestines, liver, and gallbladder, leading to subdiaphragmatic artifacts. These artifacts are particularly problematic for evaluating inferior wall perfusion and often necessitate repeated imaging, which decreases gamma camera availability and prolongs imaging times. Conclusions. Despite numerous investigated techniques to reduce interfering gastrointestinal activity, results have been inconsistent, and current MPI guidelines provide scant information on effective procedures to mitigate this issue. Based on our experience, some possible approaches to reducing artifacts include choosing stress testing with an exercise stress test, when possible, late imaging, fluid intake, and consuming carbonated water immediately before imagingTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo radiologije in onkologije