PMID- 26717912 OWN - NLM STAT- MEDLINE DCOM- 20170131 LR - 20181113 IS - 1432-1971 (Electronic) IS - 0172-0643 (Linking) VI - 37 IP - 4 DP - 2016 Apr TI - Feature Tracking-Derived Peak Systolic Strain Compared to Late Gadolinium Enhancement in Troponin-Positive Myocarditis: A Case-Control Study. PG - 696-703 LID - 10.1007/s00246-015-1333-z [doi] AB - Cardiac magnetic resonance (CMR) assesses myocardial involvement in myocarditis (MYO). Current techniques are qualitative, subjective, and prone to interpretation error. Feature tracking (FT) analyzes myocardial strain using CMR and has not been examined in MYO. We hypothesize that regional left ventricular (LV) strain is abnormal in MYO. Regional strain by FT was compared to late gadolinium enhancement (LGE) and troponin leak as measures of myocardial involvement. This single-center, retrospective CMR study reviewed patients with clinical MYO and structurally normal hearts who underwent CMR at our institution. Young adults with normal cardiac anatomy, function, and absent LGE served as controls. MYO patients with documented troponin leak and normal global ejection fraction (EF > 50 %) were included in comparison. FT determined regional myocardial peak systolic strain (pkS) in longitudinal and circumferential distributions. T tests compared strain values between cases and controls. Receiver operating characteristic curves determined pkS values with highest sensitivity and specificity for concurrent troponin leak and LGE. FT was performed on 57 patients: 37 MYO and 20 controls. Twenty-eight cases with normal EF, and 20 control patients were included in final analysis. Nearly all cases with normal function demonstrated abnormal regional pkS (27/28, 96 %). Cases had significantly diminished pkS when compared to controls in all regions except the longitudinal 2C distribution. FT-derived longitudinal and circumferential pkS is sensitive and specific in identifying myocardial involvement, namely the presence of troponin leak and LGE. FT may be a useful adjunctive, objective measure of myocardial involvement in patients with MYO and normal LV function. FAU - Weigand, Justin AU - Weigand J AD - Division of Pediatric Cardiology, Children's Hospital of San Antonio/Baylor College of Medicine, 315 N. San Saba Street Suite 1135, San Antonio, TX, 78207, USA. justin.weigand@bcm.edu. FAU - Nielsen, James C AU - Nielsen JC AD - Department of Radiology and Pediatric Cardiology, Stony Brook Children's Hospital, 100 Nicolls Road, Stony Brook, NY, 11794, USA. FAU - Sengupta, Partho P AU - Sengupta PP AD - Department of Cardiology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1030, New York, NY, 10029-6574, USA. FAU - Sanz, Javier AU - Sanz J AD - Department of Cardiology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1030, New York, NY, 10029-6574, USA. FAU - Srivastava, Shubhika AU - Srivastava S AD - Division of Pediatric Cardiology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1201, New York, NY, 10029, USA. FAU - Uppu, Santosh AU - Uppu S AD - Division of Pediatric Cardiology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1201, New York, NY, 10029, USA. LA - eng PT - Journal Article DEP - 20151231 PL - United States TA - Pediatr Cardiol JT - Pediatric cardiology JID - 8003849 RN - 0 (Contrast Media) RN - 0 (Troponin) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Adolescent MH - Case-Control Studies MH - Contrast Media/chemistry MH - Echocardiography MH - Female MH - Gadolinium DTPA/chemistry MH - Heart Ventricles/*physiopathology MH - Humans MH - Logistic Models MH - Magnetic Resonance Imaging, Cine MH - Male MH - Myocarditis/*diagnostic imaging MH - Myocardium/*pathology MH - Retrospective Studies MH - Sensitivity and Specificity MH - Systole MH - Troponin/*blood MH - *Ventricular Function, Left MH - Young Adult OTO - NOTNLM OT - Cardiovascular magnetic resonance imaging OT - Feature tracking OT - Myocardial delayed enhancement OT - Myocardial strain OT - Myocarditis EDAT- 2016/01/01 06:00 MHDA- 2017/02/01 06:00 CRDT- 2016/01/01 06:00 PHST- 2015/10/11 00:00 [received] PHST- 2015/12/15 00:00 [accepted] PHST- 2016/01/01 06:00 [entrez] PHST- 2016/01/01 06:00 [pubmed] PHST- 2017/02/01 06:00 [medline] AID - 10.1007/s00246-015-1333-z [pii] AID - 10.1007/s00246-015-1333-z [doi] PST - ppublish SO - Pediatr Cardiol. 2016 Apr;37(4):696-703. doi: 10.1007/s00246-015-1333-z. Epub 2015 Dec 31.