PMID- 28353309 OWN - NLM STAT- MEDLINE DCOM- 20180404 LR - 20180404 IS - 1898-018X (Electronic) IS - 1898-018X (Linking) VI - 24 IP - 3 DP - 2017 TI - Cardiac magnetic resonance imaging derived quantification of myocardial ischemia and scar improves risk stratification and patient management in stable coronary artery disease. PG - 293-304 LID - 10.5603/CJ.a2017.0036 [doi] AB - BACKGROUND: Quantification of myocardial ischemia and necrosis might ameliorate prognostic models and lead to improved patient management. However, no standardized consensus on how to assess and quantify these parameters has been established. The aim of this study was to quantify these variables by cardiac magnetic resonance imaging (CMR) and to establish possible incremental implications in cardiovascular risk prediction. METHODS: This study is a retrospective analysis of patients with known or suspected coronary artery disease (CAD) referred for adenosine perfusion CMR was performed. Myocardial ischemia and necrosis were assessed and quantified using an algorithm based on standard first-pass perfusion imaging and late gadolinium enhancement (LGE). The combined primary endpoint was defined as cardiac death, non-fatal myocardial infarction, and stroke. RESULTS: 845 consecutive patients were enrolled into the study. During the median follow-up of 3.64 [1.03; 10.46] years, 61 primary endpoints occurred. Patients with primary endpoint showed larger extent of ischemia (10.7 +/- 12.25% vs. 3.73 +/- 8.29%, p < 0.0001) and LGE (21.09 +/- 15.11% vs. 17.73 +/- 10.72%, p < 0.0001). A risk prediction model containing the extent of ischemia and LGE proved to be superior in comparison to all other models (chi(2) increase: from 39.678 to 56.676, integrated discrimination index: 0.3851, p = 0.0033, net reclassification index: 0.11516, p = 0.0071). The ben-eficial effect of revascularization tended to be higher in patients with greater extents of ischemia, though statistical significance was not reached. CONCLUSIONS: Quantification of myocardial ischemia and LGE was shown to significantly improve existing risk prediction models and might thus lead to an improvement in patient management. FAU - Buckert, Dominik AU - Buckert D FAU - Cieslik, Maciej AU - Cieslik M FAU - Tibi, Raid AU - Tibi R FAU - Radermacher, Michael AU - Radermacher M FAU - Rottbauer, Wolfgang AU - Rottbauer W FAU - Bernhardt, Peter AU - Bernhardt P AD - Heart Clinic Ulm, Ulm, Germany, Germany. peter.bernhardt@herzklinik-ulm.de. LA - eng PT - Journal Article DEP - 20170329 PL - Poland TA - Cardiol J JT - Cardiology journal JID - 101392712 SB - IM MH - Adult MH - Aged MH - Coronary Artery Disease/complications/diagnosis/*therapy MH - Female MH - Follow-Up Studies MH - Germany MH - Humans MH - Incidence MH - Magnetic Resonance Imaging, Cine/*methods MH - Male MH - Middle Aged MH - Myocardial Infarction/*diagnosis/epidemiology/etiology MH - Myocardial Ischemia/*diagnosis/etiology/physiopathology MH - Myocardium/*pathology MH - Prognosis MH - Reproducibility of Results MH - Retrospective Studies MH - *Risk Assessment MH - Risk Factors MH - Severity of Illness Index MH - Stroke Volume MH - Time Factors MH - Ventricular Function, Left/*physiology OTO - NOTNLM OT - cardiac magnetic resonance imaging OT - coronary artery disease OT - prognosis and outcomes OT - quantification of ischemia and necrosis OT - risk stratification EDAT- 2017/03/30 06:00 MHDA- 2018/04/05 06:00 CRDT- 2017/03/30 06:00 PHST- 2016/08/23 00:00 [received] PHST- 2017/02/24 00:00 [accepted] PHST- 2017/03/27 00:00 [revised] PHST- 2017/03/30 06:00 [pubmed] PHST- 2018/04/05 06:00 [medline] PHST- 2017/03/30 06:00 [entrez] AID - VM/OJS/J/48524 [pii] AID - 10.5603/CJ.a2017.0036 [doi] PST - ppublish SO - Cardiol J. 2017;24(3):293-304. doi: 10.5603/CJ.a2017.0036. Epub 2017 Mar 29.