ArticleThe international journal of cardiovascular imaging2024
T1 mapping: a non-invasive tool to assess the systemic right ventricle.
Article in The international journal of cardiovascular imaging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Cardiac magnetic resonance T1 mapping predicts outcome in patients with a systemic right ventricle:European heart journal open · 2026Article
- Burden of diffuse myocardial fibrosis assessed by cardiac magnetic resonance in repaired tetralogy of Fallot: A systematic review and meta-analysis.International journal of cardiology. Congenital heart disease · 2025Article
- Evidence-based Management of Heart Failure in the Systemic Right Ventricle.Current cardiology reports · 2025Review
- T1 mapping of the right ventricle in congenital heart disease: a focus on pediatrics.Pediatric radiology · 2025Review
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Authors and funding
6 authors.
Funding
Abstract
Ventricular remodeling leads to fibrotic changes in systemic right ventricles (RV). Native T1 mapping provides a quantitative measure in myocardial tissue characterization. The aim of our study was to correlate native T1 values of the systemic RV to function and volumetric data. Native T1 maps were generated with a single breath hold Modified Look-Locker Inversion-recovery pulse (MOLLI) sequence was acquired in the mid-ventricular short axis. Regions of interest (ROI) were drawn in both ventricular free walls, the interventricular septum (IVS), superior insertion point (SIP) and inferior insertion point (IIP) to obtain native T1 values. T1 values were compared to CMR ventricular volumes and function using Spearman correlation. The median age was 36 years (IQR 27-48 years). There were elevated mean native left ventricular (LV) T1 and IIP T1 values at 1122 ± 171 ms and 1117 ± 96 ms, respectively. RV dysfunction was associated with elevated IIP T1 (p = 0.007). Significant moderate negative correlations were seen between RV T1 and LV ejection fraction (LVEF) (r= -0.63, p = 0.01), between RV: IVS T1 ratio and LVEF (r= -0.68, p = 0.006), between LVEF and SIP: IVS T1 ratios (r= -0.54, p = 0.04), and RVEF and IIP T1 (r= -0.59, p = 0.02). Fibrosis measured by native T1 mapping in the systemic RV is most prominent in the LV wall and septal insertion point and correlates with decreased function. T1 values can be used in non-invasive imaging assessment of the RV, but further studies with larger cohorts are needed to assess ability to risk stratify and guide therapy.
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Registered trials
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