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Reiter, C; Reiter, U; Kräuter, C; Kolesnik, E; Scherr, D; Schmidt, A; Fuchsjäger, M; Reiter, G.
MR 4D flow-derived left atrial acceleration factor for differentiating advanced left ventricular diastolic dysfunction.
Eur Radiol. 2024; 34(6):4065-4076
Doi: 10.1007/s00330-023-10386-9
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- Leading authors Med Uni Graz
- Reiter Clemens
- Reiter Ursula
- Co-authors Med Uni Graz
- Fuchsjäger Michael
- Kolesnik Ewald
- Kräuter Corina
- Reiter Gert
- Scherr Daniel
- Schmidt Albrecht
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- Abstract:
- OBJECTIVES: The magnetic resonance (MR) 4D flow imaging-derived left atrial (LA) acceleration factor α was recently introduced as a means to non-invasively estimate LA pressure. We aimed to investigate the association of α with the severity of left ventricular (LV) diastolic dysfunction using echocardiography as the reference method. METHODS: Echocardiographic assessment of LV diastolic function and 3-T cardiac MR 4D flow imaging were prospectively performed in 94 subjects (44 male/50 female; mean age, 62 ± 12 years). LA early diastolic peak outflow velocity (vE), systolic peak inflow velocity (vS), and early diastolic peak inflow velocity (vD) were evaluated from 4D flow data. α was calculated from α = vE / [(vS + vD) / 2]. Mean parameter values were compared by t-test; diagnostic performance of α in predicting diastolic (dys)function was investigated by receiver operating characteristic curve analysis. RESULTS: Mean α values were 1.17 ± 0.14, 1.20 ± 0.08, 1.33 ± 0.15, 1.77 ± 0.18, and 2.79 ± 0.69 for grade 0 (n = 51), indeterminate (n = 9), grade I (n = 13), grade II (n = 13), and grade III (n = 8) LV diastolic (dys)function, respectively. α differed between subjects with non-advanced (grade < II) and advanced (grade ≥ II) diastolic dysfunction (1.20 ± 0.15 vs. 2.16 ± 0.66, p < 0.001). The area under the curve (AUC) for detection of advanced diastolic dysfunction was 0.998 (95% CI: 0.958-1.000), yielding sensitivity of 100% (95% CI: 84-100%) and specificity of 99% (95% CI: 93-100%) at cut-off α ≥ 1.58. The AUC for differentiating grade III diastolic dysfunction was also 0.998 (95% CI: 0.976-1.000) at cut-off α ≥ 2.14. CONCLUSION: The 4D flow-derived LA acceleration factor α allows grade II and grade III diastolic dysfunction to be distinguished from non-advanced grades as well as from each other. CLINICAL RELEVANCE STATEMENT: As a single continuous parameter, the 4D flow-derived LA acceleration factor α shows potential to simplify the multi-parametric imaging algorithm for diagnosis of advanced LV diastolic dysfunction, thereby identifying patients at increased risk for cardiovascular events. KEY POINTS: • Detection of advanced diastolic dysfunction is typically performed using a complex, multi-parametric approach. • The 4D flow-derived left atrial acceleration factor α alone allows accurate detection of advanced left ventricular diastolic dysfunction. • As a single continuous parameter, the left atrial acceleration factor α could simplify the diagnosis of advanced diastolic dysfunction.
- Find related publications in this database (using NLM MeSH Indexing)
- Humans - administration & dosage
- Male - administration & dosage
- Female - administration & dosage
- Middle Aged - administration & dosage
- Ventricular Dysfunction, Left - diagnostic imaging, physiopathology
- Heart Atria - diagnostic imaging, physiopathology
- Prospective Studies - administration & dosage
- Aged - administration & dosage
- Magnetic Resonance Imaging - methods
- Diastole - administration & dosage
- Echocardiography - methods
- Reproducibility of Results - administration & dosage
- Sensitivity and Specificity - administration & dosage
- Blood Flow Velocity - physiology
- ROC Curve - administration & dosage
- Find related publications in this database (Keywords)
- Magnetic resonance imaging
- Cardiovascular system
- Diagnostic imaging
- Heart function tests
- Validation study