Quantitative Characterization Of Tumors And Other Lesions In VIVO Using Ultrasonic Impediography

Joie Pierce Jones

doi:10.1117/12.938191

15 November 1978 Quantitative Characterization Of Tumors And Other Lesions In VIVO Using Ultrasonic Impediography

Joie Pierce Jones

Proceedings Volume 0152, Recent and Future Developments in Medical Imaging I; (1978) https://doi.org/10.1117/12.938191
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

Present medical ultrasound systems are based on energy detection methods and therefore only utilize echo intensity information. Phase information is recorded by the transducer, which is a pressure sensitive device, but is not utilized in present display or measurement schemes. This investigator has developed one approach for utilizing both the phase and amplitude information available in an ultrasound waveform. The approach is based on a time-domain characterization of system dynamics in terms of an impulse response function and has been termed impediography. This paper describes preliminary in vivo results obtained with an impediographic measurement system applied to the human eye. A conventional ophthalmic B-scan unit was modified so that any single A-scan line of interest could be digitized by a fast A/D converter. The resulting signals were recorded on magnetic media and subjected to impediographic processing using an off-line computer. Although the study was limited to several types of intraocular and orbital lesions, unique and distinctive ultrasonic signatures (in terms of impedograms) could be associated with each lesion type. The study suggests that impediography can be applied to other body regions and that the method can differentiate between a wide range of pathologies.

Citation Download Citation

Joie Pierce Jones "Quantitative Characterization Of Tumors And Other Lesions In VIVO Using Ultrasonic Impediography", Proc. SPIE 0152, Recent and Future Developments in Medical Imaging I, (15 November 1978); https://doi.org/10.1117/12.938191

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available