NEW DEVELOPMENT OF AN ULTRASOUND TRANSMISSION CAMERA

Several research groups developed transmission ultrasound systems for diagnostic imaging with promising qualities during the 1970s and 1980s. In comparison to x-ray systems, which have comparable imaging modalities like the orientation of the images, transmission ultrasound systems invoke no radiation and image definite slices within an object, where x-ray systems image the integrated attenuation along the rays. Compared with pulse-echo systems, transmission devices measure the transmitted (attenuated) part of the acoustic waves and the orientation of the cross-sectional slices is transversal to the sound propagation direction.