Key result
Supraceliac aortic stiffness exceeds infrarenal stiffness by ~6% on magnetic resonance elastography.
Why the study?
The potential of stroboscopic-wavefield-sampling-based multifrequency magnetic resonance elastography (sMRE) for quantifying human aortic stiffness in vivo was not established.
Population
20 healthy volunteers aged 27 to 77 years
Comparison
Shear wave speed in ascending thoracic, descending thoracic, and abdominal aorta segments
Design
Observational study using sMRE at 1.5 T
Authors
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MRE-mapped supraceliac stiffness may refine future aortic models; extends known segmental differences but leaves open clinical validation.
Cross-Sectional (n=11)
No
Absolute Event Rate: 1.47% vs 1.39%
p-value: p=0.035
Schaafs et al. (2020) conducted a cross-sectional in Healthy volunteers (n=11). Supraceliac aortic segment vs. Infrarenal aortic segment was evaluated on Shear wave speed (SWS) in supine position (p=0.035). Magnetic resonance elastography demonstrated that the supraceliac segment of the abdominal aorta has significantly higher wall stiffness compared to the infrarenal segment in the supine position (1.47 vs 1.39 m/s, p=0.035).
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