Patent ID: 6245015
Filing Date: 2001-06-12
Classification: A61B,G01N

Abstract:
A method for detecting a property in an interior of a mass of tissue, comprising the steps of:focusing an ultrasound beam having an ultrasound frequency at a localized region in the mass of tissue during one detection cycle;directing a first beam of light of unmodulated intensity and having a first light frequency into the mass of tissue during said one detection cycle;detecting diffusion waves of said ultrasound frequency emanating from the mass of tissue during said one detection cycle;focusing said ultrasound beam having said ultrasound frequency at said localized region during a second detection cycle;directing a second beam of light unmodulated in intensity and having a second light frequency different than said first light frequency into the mass of tissue during said second detection cycle; anddetecting diffusion waves of said ultrasound frequency emanating from the mass of tissue during said second detection cycle.