{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T13:44:38Z","timestamp":1768311878320,"version":"3.49.0"},"reference-count":44,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,4,30]],"date-time":"2018-04-30T00:00:00Z","timestamp":1525046400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2018,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Observational studies have explored the safety of magnetic resonance (MR) scanning of patients with cardiac implantable electronic devices (CIEDs) that are not Food and Drug Administration approved for MR scanning (\u201cnonconditional\u201d). However, concern has been raised that MR scanning that includes the thoracic region may pose a higher risk. This study examines the safety of MR scanning of thoracic versus nonthoracic regions of patients with CIEDs.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients underwent MR scanning utilizing an institutional protocol. CIED variables examined included sensing value, pacing capture threshold, lead impedance, and battery voltage. Regression analysis of the CIED variable differences (pre\u2010 to immediately post\u2010MR and pre\u2010MR to long\u2010term follow\u2010up) was performed to determine if CIED variable differences were dependent on region scanned (thoracic vs nonthoracic), time from CIED implant to MR scanning, or CIED type (pacemaker vs implantable cardioverter defibrillator).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>238 patients (38% female, age 65 \u00b1 15 years) underwent 339 MR scans, including 99 MR scans of the thoracic region. CIED variable differences to immediately post\u2010MR or to long\u2010term follow\u2010up were not significantly different from zero (P\u00a0&gt;\u00a00.05) and there was no dependence upon region scanned (thoracic vs nonthoracic), time from CIED implant to MR scan, or CIED type. One power\u2010on reset occurred in a patient that underwent a cardiac MR and the CIED was successfully reprogrammed. There were no clinical adverse effects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>CIED variable differences following MR scan were not dependent on the region scanned (thoracic vs nonthoracic) and there were no clinical adverse effects in this prospective cohort.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pace.13340","type":"journal-article","created":{"date-parts":[[2018,3,31]],"date-time":"2018-03-31T05:16:38Z","timestamp":1522473398000},"page":"589-596","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Thoracic versus nonthoracic MR imaging for patients with an MR nonconditional cardiac implantable electronic device"],"prefix":"10.1111","volume":"41","author":[{"given":"Iwan S.","family":"Nyotowidjojo","sequence":"first","affiliation":[{"name":"Sarver Heart Center University of Arizona College of Medicine  Tucson AZ 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