Spectral tissue strain: a new technique for imaging tissue strain using intravascular ultrasound.
Spectral tissue strain (STS) is a new technique for measuring and imaging tissue strain from a set of images using intravascular ultrasound. The technique is based on the Fourier scaling property and uses the chirp z-transform (CZT) to estimate strain within the vessel walls. Some preliminary results, both in vitro and in vivo, are described. A novel display technique has also been developed for encoding radial strain and displaying the resulting colour map as an overlay on the original image.
Talhami
H E
HE
Ultrasonics Laboratory, CSIRO, Chatswood, NSW, Australia.
Wilson
L S
LS
Neale
M L
ML
D000800:Angioplasty, Balloon; D001158:Arteries / Q000000981:diagnostic imaging / Q000502:physiology; D001696:Biomechanical Phenomena; D006801:Humans; D066298:In Vitro Techniques; D008961:Models, Structural; D018084:Ultrasonography, Interventional / Q000379:methods*