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Content Provider | IEEE Xplore Digital Library |
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Author | Yadong Li Zagzebski, J.A. |
Copyright Year | 1986 |
Abstract | A frequency domain B-mode imaging model applicable to linear and phased array transducers was developed for simulating ultrasound images of random media. Computations are based on an approximation that is less restrictive than the Fresnel approximation. The model is compared with the exact time domain impulse response method, regarded as the "gold standard". In a typical application, errors in simulated rf waveforms are less than 1% regardless of the steering angle for distances greater than 2 cm, yet computation times are on the order of 1/150 of those using the exact method. This model takes into account the effects of frequency-dependent attenuation, backscattering, and dispersion. Modern beam-forming techniques such as apodization, dynamic aperture, elevational focusing, multiple transmit focusing and dynamic receiving focusing also can be simulated. |
Page Count | 10 |
File Size | 617566 |
Starting Page | 690 |
Ending Page | 699 |
File Format | |
ISSN | 08853010 |
Volume Number | 46 |
Issue Number | 3 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1999-05-01 |
Publisher Place | U.S.A. |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Frequency domain analysis Image generation Computational modeling Focusing Ultrasonic imaging Phased arrays Ultrasonic transducer arrays Ultrasonic transducers Random media Attenuation |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Acoustics and Ultrasonics Instrumentation |
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