ArticleJournal of magnetic resonance imaging : JMRI2025
MRI Assessment of Energy Loss Within the Thoracic Aorta and Its Impact on Cardiac Function in Fontan Patients After Aortic Reconstruction.
Article in Journal of magnetic resonance imaging : JMRI, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- MRI Assessment of Energy Loss Within the Thoracic Aorta and Its Impact on Cardiac Function in Fontan Patients After Aortic Reconstruction.Journal of magnetic resonance imaging : JMRI · 2025Article
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5 authors.
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Abstract
backgroundIn Fontan patients undergoing aortic reconstruction, concerns regarding the impact of aortic function on ventricular function exist. PURPOSE: 4D Flow MRI was used to compare energy loss (EL) within the thoracic aorta in patients with and without aortic reconstruction. STUDY TYPE: Retrospective case control. POPULATION: Eighty-nine patients underwent 4D Flow MRI: group A (n = 36), Fontan patients without aortic reconstruction (9.9 (1.0-26.7) years since Fontan completion); group B (n = 42), Fontan patients with aortic reconstruction (11.8 (1.0-26.4) years since Fontan completion); and group C (n = 11), patients with biventricular circulation without aortic reconstruction. FIELD STRENGTH/SEQUENCE: Balanced SSFP cine and time-resolved 3D phase contrast (4D Flow) sequences at 1.5 T or 3 T. ASSESSMENT: Peak and average aortic EL in the thoracic aorta as well as peak aortic velocity and flow volume were assessed. Correlations between EL indexed to aortic forward flow volume and volumetric ventricular parameters and peak aortic velocity were assessed. STATISTICAL TESTS: Kruskal-Wallis test, chi-square test and Spearman's correlation coefficient were used.
resultsPeak and average EL were significantly larger in group B than in groups A and C (peak EL (mW); A: 1.45 (0.22-9.81), B: 3.09 (0.51-12.49), C: 2.10 (1.20-3.45); average EL (mW); A: 0.46 (0.07-2.63), B: 1.13 (0.13-4.67), C: 0.76 (0.40-1.98)). Group B had significantly larger ventricular end-diastolic volume index (EDVi, 108 mL/m DATA
conclusionFontan patients who underwent aortic reconstruction had increased aortic EL, even in the absence of significant residual aortic stenosis. EVIDENCE LEVEL: Level 3. TECHNICAL EFFICACY: Stage 3.
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