Advertisement

A New, High-Performance Ultrasonic Camera

  • Philip S. Green
  • Louis F. Schaefer
  • Earle D. Jones
  • Joe R. Suarez

Abstract

By virtue of their true-perspective presentation, focused and holographic methods of ultrasonic imaging hold great promise for soft tissue visualization. However, none of the numerous methods demonstrated to date combine the features required of a clinically useful instrument.

A new ultrasonic camera for real-time imaging of soft tissue is described. This system produces high resolution images of a 15- × 15-cm field. Its high sensitivity (10-11 W/cm2 threshold) permits penetration of a considerable depth of tissue. Both transmission and reflection imaging are provided, with pulse/range-gating operation in both modes. The image is displayed on a television monitor and may be recorded on video tape.

The ultrasonic camera incorporates a unique wavefield deflection system for scanning the image past a linear array of 192 piezoelectric detectors. Linear and logarithmic amplification is provided in each signal channel.

Ultrasonic images of test objects and of human extremities are presented.

Keywords

Transmission Image Video Tape Ultrasonic Imaging Reflection Image Television Monitor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • Philip S. Green
    • 1
  • Louis F. Schaefer
    • 1
  • Earle D. Jones
    • 1
  • Joe R. Suarez
    • 1
  1. 1.Stanford Research InstituteMenlo ParkUSA

Personalised recommendations