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Proceedings Paper

Plane wave fast color flow mode imaging: a parameter study
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Paper Abstract

A new Plane wave fast color flow imaging method (PWM) has been investigated, and performance evaluation of the PWM based on experimental measurements has been made. The results show that it is possible to obtain a CFM image using only 8 echo-pulse emissions for beam to flow angles between 45o. and 75o. Compared to the conventional ultrasound imaging the frame rate is ~ 30-60 times higher. The bias, Best of the velocity profile estimate, based on 8 pulse-echo emissions, is between 3.3 % and 6.1 % for beam to flow angles between 45o. and 75o, and the standard deviation, σest of the velocity profile estimate is around 2 % for beam to flow angles between 45o. and 75o. relative to the peak velocity, when the flow angle is known in advance. A study is performed to investigate how different parameters influence the blood velocity estimation. The results confirmed expectations for beam to flow angles between 45o. and 75o. The parameter study shows that the PWM using Directional velocity estimation gives the best results using spatial sampling interval ≤λ/10, correlation range ≥10λ, and number of directional signals ≥6. It is hereby shown that, by carefully choosing the set of parameters, PWM is feasible for fast CFM imaging with an acceptable bias and standard deviation.

Paper Details

Date Published: 16 March 2006
PDF: 11 pages
Proc. SPIE 6147, Medical Imaging 2006: Ultrasonic Imaging and Signal Processing, 61470U (16 March 2006); doi: 10.1117/12.653461
Show Author Affiliations
Ibrahim Bolic, Technical Univ. of Denmark (Denmark)
Jesper Udesen, Technical Univ. of Denmark (Denmark)
B-K Medical Ap (Denmark)
Fredrik Gran, Technical Univ. of Denmark (Denmark)
Jørgen Arendt Jensen, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 6147:
Medical Imaging 2006: Ultrasonic Imaging and Signal Processing
Stanislav Emelianov; William F. Walker, Editor(s)

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