Tiziano Morganti

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A novel technique has been developed for the noninvasive real-time simultaneous assessment of both blood velocity profile and wall displacements in human arteries. The novel technique is based on the use of two ultrasound beams, one set at optimal angle for wall motion measurements and the other for blood velocity profile measurements. The technique was(More)
In vitro and/or in vivo experimental tests represent a crucial phase in the development of new ultrasound (US) investigation methods for biomedical applications. Such tests frequently are made difficult by the lack of flexibility of general purpose instruments and commercial US machines typically available in research laboratories. This paper presents a(More)
Mechanical properties of human large arteries result from the interaction between blood pressure, wall distensibility and shear stress. Both the arterial diameter changes through the cardiac cycle (distension) and blood flow velocities can be noninvasively investigated through Doppler ultrasound approaches. Recently, an integrated system processing in(More)
In ultrasound Doppler systems, directional signals are typically obtained by processing quadrature demodulated data with dedicated analog or digital circuits. In this paper, a software approach is proposed, that allows fully exploiting the reproduction and recording capabilities of low-cost personal computer sound cards and/or embedded chips.(More)
Ultrasound equipment allows an early diagnosis of cardiovascular diseases to be obtained through the appropriate processing of received echo signals. In this paper a real time digital implementation of processing algorithms dedicated to investigate both the hemodynamic and mechanic properties of large human arteries is described. In particular, an FFT(More)
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