Native T1 for Diagnosis and Risk Prediction in Amyloid Transthyretin Cardiomyopathy: An Observational Study on 1,675 Subjects.
BACKGROUND Native T1 mapping is a contrast-free cardiac magnetic resonance (CMR) marker of myocardial amyloid infiltration, but center-specific diagnostic cutoffs and prognostic strata remain incompletely defined across transthyretin amyloidosis (ATTR). OBJECTIVES This study aims to define native T1 thresholds and ri...