Title :
Active enhancement of ultrasound contrast imaging
Author :
Shi, William T. ; Forsberg, Flemming ; Bautista, Ronald ; Vecchio, Chris ; Bernardi, R. ; Goldberg, Barry B.
Author_Institution :
Dept. of Radiol., Thomas Jefferson Univ. Hospital, Philadelphia, PA, USA
Abstract :
An active contrast imaging enhancement technique has been developed for use with microbubble contrast agents. It employs two acoustic fields: an excitation field for conditioning microbubbles and an imaging field for detecting microbubbles. Up to 14.5 and 16 dB increases (due to microbubble conditioning) in scattered first and second harmonic signals respectively were obtained. This technique is unique for effectively enhancing the blood-to-tissue image contrast
Keywords :
biomedical ultrasonics; blood vessels; bubbles; haemorheology; harmonic generation; image enhancement; medical image processing; nonlinear acoustics; acoustic fields; active contrast imaging enhancement; blood-to-tissue image contrast; excitation field; first harmonic signals; microbubble contrast agents; microbubbles conditioning; microbubbles detection; perfusion indication; scattered signals; second harmonic signals; ultrasound contrast imaging; Acoustic imaging; Acoustic pulses; Acoustic scattering; Acoustic signal detection; Backscatter; Blood; Frequency; Radiology; Surface impedance; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921694
