Measuring Aortic Distensibility with CMR
Author Information
Author(s): Redheuil Alban, Bensalah Mourad, Kachenoura Nadjia, Bruguiere Eric, Azarine Arshid, Perdrix Ludivine, Bozec Erwan, Boutouyrie Pierre, DeCesare Alain, Mousseaux Elie
Primary Institution: University of Paris Descartes-European Hospital Georges Pompidou and INSERM U678, Paris, France
Hypothesis
Can central pressure measurement in the magnet improve the estimation of local aortic distensibility during CMR imaging?
Conclusion
Aortic distensibility can be accurately measured using central pressures in the magnet, showing strong correlations with traditional methods.
Supporting Evidence
- Central pressures were estimated using both carotid tonometry and a brachial cuff during CMR imaging.
- A strong linear relationship was found between aortic distensibility measured with carotid and Vicorder methods.
- Distensibility values were lower when using peripheral brachial cuff pressures compared to central pressures.
Takeaway
Doctors can measure how stretchy the aorta is while taking pictures of the heart, which helps understand heart health better.
Methodology
The study involved 49 subjects, measuring aortic strain using CMR and estimating central pressures with both carotid tonometry and a brachial cuff.
Limitations
The study may not generalize to individuals with overt cardiovascular disease.
Participant Demographics
26 men and 23 women, average age 44±18 years, free from overt cardiovascular disease.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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