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Methods and results of dynamic range testing of diagnostic ultrasound instrumentation

Publication ,  Journal Article
Smith, SW; Lopez, H; Stewart, HF
Published in: Proceedings of SPIE - The International Society for Optical Engineering
December 27, 1977

The technological advance of gray scale imaging has been a major factor in the rapid growth of the clinical application of diagnostic ultrasound. Gray scale imaging implies that the displayed brightness of a target in the ultrasound image is a function of the amplitude of its echo. Several techniques have been investigated for the measurement of the dynamic range of gray scale ultrasound scanners. The measurement methods include (1) an electronic pulse burst generator which emits a sequence of pulses decaying at a selectable rate of 0, 1.25 or 2.5 dB/cm, (2) a polypropanol wedge designed to attenuate acoustic echoes over a range of 0 to 60 dB, (3) a series of stainless steel reflectors varying in angle from 0 to 10° so that returning echoes vary over a 40 dB range. All three instruments are easy to use. However, the wedge and variable angle devices must be calibrated for use with individual transducers. The electronic test device excludes the transducer when testing system dynamic range. Therefore, the pulse burst generator seems to be the most suitable for clinical or survey applications at this time. © 1977 SPIE.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

Publication Date

December 27, 1977

Volume

127

Start / End Page

245 / 252

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Smith, S. W., Lopez, H., & Stewart, H. F. (1977). Methods and results of dynamic range testing of diagnostic ultrasound instrumentation. Proceedings of SPIE - The International Society for Optical Engineering, 127, 245–252. https://doi.org/10.1117/12.955944
Smith, S. W., H. Lopez, and H. F. Stewart. “Methods and results of dynamic range testing of diagnostic ultrasound instrumentation.” Proceedings of SPIE - The International Society for Optical Engineering 127 (December 27, 1977): 245–52. https://doi.org/10.1117/12.955944.
Smith SW, Lopez H, Stewart HF. Methods and results of dynamic range testing of diagnostic ultrasound instrumentation. Proceedings of SPIE - The International Society for Optical Engineering. 1977 Dec 27;127:245–52.
Smith, S. W., et al. “Methods and results of dynamic range testing of diagnostic ultrasound instrumentation.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 127, Dec. 1977, pp. 245–52. Scopus, doi:10.1117/12.955944.
Smith SW, Lopez H, Stewart HF. Methods and results of dynamic range testing of diagnostic ultrasound instrumentation. Proceedings of SPIE - The International Society for Optical Engineering. 1977 Dec 27;127:245–252.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

EISSN

1996-756X

ISSN

0277-786X

Publication Date

December 27, 1977

Volume

127

Start / End Page

245 / 252

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering