Method and apparatus for producing cross-sectional images using ultrasound

摘要: A method for producing cross-sectional images using an ultrasonic imaging unit operating on the pulse-echo principle, which includes a transducer system having stationary elongated array of adjacent elements with transverse electrode segments one another side array. Successively and cyclically selected groups are energized to produce beam as result pulsed signals being applied corresponding segments. Focussing produced by each group transducers is effected transmitter or subgroups thereof, and/or echo-signals derived from reflected energy, time shifted relative another, in echo-signal has shift associated thereto function distance between (or segments) center transducers.