20.500.12556/DiRROS-30433 Subdiaphragmatic activity-related artifacts in myocardial perfusion scintigraphy Subdiafragmatična aktivnost in z njo povezani artefakti pri perfuzijski scintigrafiji srca 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 imaging myocardial perfusion imaging artifacts subdiaphragmatic activity single photon emission computed tomography intervention true false true Association of Radiology and Oncology Ljubljana Angleški jezik Slovenski jezik Neznano 2026-06-24 14:30:19 2026-06-24 14:30:19 2026-06-25 03:51:32 0000-00-00 00:00:00 2024 0 0 Soavtorji: Barbara Guzic Salobir, Monika Stalc, Katja Zaletel; str. 313-319, I no. 3 Vol. 58 Sep. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-09-01 61 1318-2099 10.2478/raon-2024-0053 210650883 https://www.radioloncol.com/index.php/ro/article/view/4409/5244 1 76e4f525-6fc8-11f1-98c5-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=46194 RAZ_Strok_Anja_2024.pdf RAZ_Strok_Anja_2024.pdf 1 D35A0838CFF18077252CABA788FF75BE b4000618306571f5797368e964601de340fda4a30613e0fdfad086e29aa28e69 91c6e77e-6fc8-11f1-98c5-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=46196 Društvo radiologije in onkologije 0 0 0