NDLI: Decorrelation of intravascular ultrasound signals: a computer simulation study

Content Provider	IEEE Xplore Digital Library
Author	Li, W. Lancee, C.T. Cespedes, E.I. van der Steen, A.F.W. Bom, N.
Copyright Year	1997
Description	Author affiliation: Thorax Centre, Erasmus Univ., Rotterdam, Netherlands (Li, W.)
Abstract	A computer model based on the impulse response method to simulate the ultrasound field of a 30 MHz transducer was developed for studying the decorrelation properties of echo signals from an intravascular scanner. The decorrelation due to (1) lateral displacement, (2) axial displacement, (3) noise level, (4) velocity distribution and (5) variance in correlation estimate were investigated. The results show that the lateral decorrelation function can be approximated by a linear model, which provides a basis for flow quantitation by decorrelation processing. Decorrelation sources unrelated to the motion of blood particles such as noise can be ignored at intravascular imaging conditions. In conclusion, this study provides insight into the parameters that affect decorrelation-based flow assessment and predicts the feasibility of such an approach using IVUS techniques.
Starting Page	1165
Ending Page	1168
File Size	257929
Page Count	4
File Format	PDF
ISBN	0780341538
ISSN	10510117
DOI	10.1109/ULTSYM.1997.661785
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-05
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decorrelation Ultrasonic imaging Computer simulation Acoustic scattering Rayleigh scattering Blood Ultrasonic transducers Radio frequency Particle scattering Acoustic transducers
Content Type	Text
Resource Type	Article

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