Title :
Three-dimensional ultrasonic reflection and attenuation imaging
Author :
Schattner, P. ; Whitehurst, T.K. ; Jensen, J.F. ; Shah, A.S. ; Green, P.S.
Author_Institution :
SRI Int., Menlo Park, CA, USA
Abstract :
A three-dimensional, volumetric, data acquisition and reconstruction system for ultrasonic imaging is described. The method entails storing the digitized waveforms from each element of a multielement annular array, with bidirectional mechanical scanning. The system was implemented through digitization of the RF signals from each of the rings of an annular-array transducer, storage of the signals in computer memory, and offline image reconstruction. Initial reflection and reflex transmission images acquired with this system are presented. The results of different image reconstruction algorithms are demonstrated.<>
Keywords :
acoustic imaging; acoustic signal processing; biomedical ultrasonics; computerised picture processing; data acquisition; ultrasonic absorption; ultrasonic reflection; 3D US attenuation imaging; 3D US reflection imaging; B-scan US imaging; RF signal digitization; annular-array transducer; bidirectional mechanical scanning; clinical imaging; data acquisition; digitized waveforms; image reconstruction algorithms; multielement annular array; offline image reconstruction; reflex transmission images; ultrasonic imaging; volumetric system; Acoustic imaging; Acoustic reflection; Attenuation measurement; Backscatter; Image reconstruction; Image storage; Optical reflection; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
