Patents by Inventor Jason J. Rownd

Jason J. Rownd has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automated system and method for testing resolution of ultrasound scanners
    Patent number: 5670719
    Abstract: In accordance with the present invention there is presented an automated system for testing the ability of clinical ultrasound scanners to detect focal lesions in human tissue. An ultrasound scanner phantom containing background material mimicking the ultrasonic characteristics of human tissue and coplanar spherical target lesions ultrasonically contrasting with the background material is scanned using the ultrasound scanner to be tested. Digitized images are made of the ultrasound scan of slices in the ultrasound phantom containing background material only and of slices on which the focal lesions are centered. A lesion signal to noise ratio (SNR).sub.L is then calculated at each defined pixel coordinate in the target lesion slice.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: September 23, 1997
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ernest L. Madsen, James A. Zagzebski, Gary R. Frank, Jason J. Rownd
  • Automated system and method for testing resolution of ultrasound scanners
    Patent number: 5574212
    Abstract: In accordance with the present invention there is presented an automated system for testing the ability of clinical ultrasound scanners to detect focal lesions in human tissue. An ultrasound scanner phantom containing background material mimicking the ultrasonic characteristics of human tissue and coplanar spherical target lesions ultrasonically contrasting with the background material is scanned using the ultrasound scanner to be tested. Digitized images are made of the ultrasound scan of slices in the ultrasound phantom containing background material only and of slices on which the focal lesions are centered. A lesion signal to noise ratio (SNR).sub.L is then calculated at each defined pixel coordinate in the target lesion slice.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: November 12, 1996
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Ernest L. Madsen, James A. Zagzebski, Gary R. Frank, Jason J. Rownd