To the Editor There is increasing evidence that the mechanical properties of the aorta, and arterioventricular coupling, are of great clinical importance in cardiovascular diseases. Therefore, we read the paper by Vitarelli et al with great interest.1 Given the recent evolution of ultrasound equipment and processing tools, the suggestion of assessing the aorta using velocity and deformation information is interesting, but the way it is used by the authors is confusing.
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