Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1999-04-13
2000-05-30
Jaworski, Francis J.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600459, 73579, 73584, A61B 800
Patent
active
060685972
ABSTRACT:
A system is disclosed for performing vibrational resonance ultrasonic Doppler spectrometry to produce characteristic vibrational resonance spectra of soft structures in compressible media or soft tissues in a living body. A system is further disclosed for vibrational resonance ultrasonic Doppler imaging of the spatial distribution of vibrational resonance properties. An audio-frequency source externally applies a sequence of vibrational frequencies into a medium or body. Ultrasonic pulsed Doppler beams are focused at various locations within a region of interest, and the received Doppler signals are used to estimate the amplitude of the vibrational resonance response at each location. A vibrational resonance spectrum is computed from received Doppler amplitudes at each vibrational frequency and graphically displayed. Mapping the vibrational resonance spectra of a plurality of regions of interest into colors and brightness according to specific curve shape criteria further generates a two-dimensional vibrational resonance image. These methods may be utilized in the detection and differentiation of tumors of the breast, prostate, liver, and other soft tissues.
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