2022
An Explainable Machine Learning Approach Reveals Prognostic Significance of Right Ventricular Dysfunction in Nonischemic Cardiomyopathy
Fahmy A, Csecs I, Arafati A, Assana S, Yankama T, Al-Otaibi T, Rodriguez J, Chen Y, Ngo L, Manning W, Kwong R, Nezafat R. An Explainable Machine Learning Approach Reveals Prognostic Significance of Right Ventricular Dysfunction in Nonischemic Cardiomyopathy. JACC Cardiovascular Imaging 2022, 15: 766-779. PMID: 35033500, DOI: 10.1016/j.jcmg.2021.11.029.Peer-Reviewed Original ResearchConceptsNonischemic dilated cardiomyopathyBeth Israel Deaconess Medical CenterComposite endpointRight ventricular (RV) dysfunctionCardiovascular hospitalizationRisk prediction modelAdverse outcomesRisk markersMarker of adverse outcomeCardiac magnetic resonance markersRisk stratification of patientsRight ventricular dysfunctionRV ejection fractionMedical CenterFollow-up durationCardiac magnetic resonanceEnd-diastolic volumeStratification of patientsArea under the curveAll-cause deathHigh-risk thresholdVentricular dysfunctionEjection fractionNonischemic cardiomyopathyPrognostic significance
2020
Association Between Left Ventricular Mechanical Deformation and Myocardial Fibrosis in Nonischemic Cardiomyopathy
Csecs I, Pashakhanloo F, Paskavitz A, Jang J, Al‐Otaibi T, Neisius U, Manning W, Nezafat R. Association Between Left Ventricular Mechanical Deformation and Myocardial Fibrosis in Nonischemic Cardiomyopathy. Journal Of The American Heart Association 2020, 9: e016797. PMID: 33006296, PMCID: PMC7792406, DOI: 10.1161/jaha.120.016797.Peer-Reviewed Original ResearchConceptsLate gadolinium enhancementSeptal late gadolinium enhancementLV ejection fractionNonischemic cardiomyopathyExtent of fibrosisCardiovascular magnetic resonanceEjection fractionImpaired global circumferential strainImpaired LV ejection fractionLate gadolinium enhancement groupsDepressed LV ejection fractionClinical cardiovascular magnetic resonanceLeft ventricular (LVLGE-negative groupCircumferential strainGlobal radial strainGlobal longitudinal strainRadial strainGlobal circumferential strainLV deformation parametersGlobal LV functionAdverse cardiovascular outcomesLGE-positiveNonischemic fibrosisFibrosis burden