Measurement of vessel shape for estimating viscoelastic properties of
the radial artery under ultrasound probe pressure
- Ryo Ishikawa,
- Shohei MORI,
- Mototaka ARAKAWA,
- Shigeo OHBA,
- Kazuto KOBAYASHI,
- Hiroshi KANAI
Abstract
Here, the blood vessel shape was accurately measured to evaluate the
viscoelastic properties of the radial artery. For a robust measurement,
the shape parameters of the elliptical blood vessel were determined by
integrating brightness over the entire vessel instead of using the
brightness gradient at the vessel boundary. The usefulness of the
proposed method was demonstrated via simulations and in vivo
experiments. The obtained results exhibited considerable potential for
estimating the viscoelastic properties of elliptically deformed blood
vessels.