FEMMINA: a fast echographic multiparametric multi-imaging novel apparatus1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027)

The aim of the work is to present a novel apparatus for experimental activity in research of new methods for studying material and biological tissue with ultrasound. FEMMINA (Fast Echographic Multiparametric Multi Imaging Novel Apparatus) is a hardware and software platform dedicated to ultrasonic signal and image processing. It uses the radiofrequency signal for multiparametric calculation and presentation with a multiprocessing digital architecture. The architecture is designed to be modular, expandable and aimed at embracing different ultrasonic investigation techniques. It provides a multianalysis and interactive image system not only for clinical usage but also for all applications where a high image rate production is required. In order to obtain an efficient interactive system, it was also necessary to realize a fast signal processing, as well as to implement a fast visualization tool for managing multiple images. The platform is completely programmable, and for a specific application it can be on-line reconfigured in dependence of the parameters that, from time to time, must be evaluated. Spectral images of biological in-vitro and in-vivo tissue, obtained through the Discrete Wavelet Transform (DWT) by using new processing algorithms are presented as preliminary applications of the platform, as well as vector images for blood flow 2-D Doppler investigation. Innovative blood images, obtained without using the Doppler effect, and novel vector distribution images for blood velocity are reported.