A practical approach to ultrasonic imaging using diffraction tomography.
A technique for ultrasonic imaging based on the theory of diffraction tomography is presented. The method utilizes a fixed, circular configuration of transmitters and detectors. This configuration was selected because it avoids many practical limitations associated with the design of a medical imaging device. Practical considerations also motivated the inclusion of effects associated with the transmitter beam pattern rather than pursuing the more conventional approach in which plane-wave illumination is required. In addition, the problem of separately imaging both density and compressibility variations is considered.
Witten
A
A
Oak Ridge National Laboratory, Tennessee 37831.
Tuggle
J
J
Waag
R C
RC
D006801:Humans; D008433:Mathematics; D014054:Tomography / Q000379:methods*; D014463:Ultrasonography / Q000379:methods*