Digital scan converters in diagnostic ultrasound imaging

The use of digital scan converters in ultrasonic imaging is presented. The basic principles of ultrasound physics and imaging are briefly reviewed. A detailed description of the components and principles of operation of digital scan converters follows. The capabilities of current digital scan conver...

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Bibliographic Details
Published in:Proceedings of the IEEE 1979-01, Vol.67 (4), p.654-664
Main Authors: Ophir, J., Maklad, N.F.
Format: Article
Language:English
Subjects:
Acoustic beams
Biological tissues
Biomedical imaging
Energy resolution
Frequency
Impedance
Medical diagnostic imaging
Optical imaging
Ultrasonic imaging
Ultrasonic transducers
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Description
Summary:The use of digital scan converters in ultrasonic imaging is presented. The basic principles of ultrasound physics and imaging are briefly reviewed. A detailed description of the components and principles of operation of digital scan converters follows. The capabilities of current digital scan converters in terms of resolution, writing speed, pre-processing and postprocessing, and new rapid scanning techniques are discussed. A summary of the factors which limit performance demonstrates the interdependence of the ultrasonic pulse-repetition frequency, memory size and speed, magnification, depth of penetration, and the occurrence of Moire artifacts. Concluding remarks summarize the technology status and indicate expected future developments.
ISSN:0018-9219
DOI:10.1109/PROC.1979.11289