Ultrasonic imaging using the Doppler effect caused by a moving transducer

Keinosuke Nagai; James F. Greenleaf

doi:10.1117/12.55709

Ultrasonic imaging using the Doppler effect caused by a moving transducer

Keinosuke Nagai, James F. Greenleaf

Physiology & Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

An imaging method using the Doppler effect is proposed in this paper. An object is illuminated by a sinusoidal wave from a linearly moving transducer. The frequency components of the reflected wave can be considered to be projections along lines at specified corresponding angles from the transducer. One can reconstruct images by applying conventional CT (computerized tomography) algorithms to the projections thus obtained. The theory is derived for coherent and incoherent processing. Theoretical results are confirmed by numerical simulations. Experimental results show that coherent Doppler tomography is much higher in resolution but more noisy than incoherent Doppler tomography.

Original language	English (US)
Pages (from-to)	1249-1254
Number of pages	6
Journal	Optical Engineering
Volume	29
Issue number	10
DOIs	https://doi.org/10.1117/12.55709
State	Published - Jan 1 1990

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering(all)

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abstract = "An imaging method using the Doppler effect is proposed in this paper. An object is illuminated by a sinusoidal wave from a linearly moving transducer. The frequency components of the reflected wave can be considered to be projections along lines at specified corresponding angles from the transducer. One can reconstruct images by applying conventional CT (computerized tomography) algorithms to the projections thus obtained. The theory is derived for coherent and incoherent processing. Theoretical results are confirmed by numerical simulations. Experimental results show that coherent Doppler tomography is much higher in resolution but more noisy than incoherent Doppler tomography.",

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AB - An imaging method using the Doppler effect is proposed in this paper. An object is illuminated by a sinusoidal wave from a linearly moving transducer. The frequency components of the reflected wave can be considered to be projections along lines at specified corresponding angles from the transducer. One can reconstruct images by applying conventional CT (computerized tomography) algorithms to the projections thus obtained. The theory is derived for coherent and incoherent processing. Theoretical results are confirmed by numerical simulations. Experimental results show that coherent Doppler tomography is much higher in resolution but more noisy than incoherent Doppler tomography.

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Ultrasonic imaging using the Doppler effect caused by a moving transducer

Abstract

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