Ultrasonic diagnostic apparatus which performs complex vector phase correction to echo signals obtained in time sequence from each ultrasonic transducer

摘要

Each of a plurality of transducers (5-1, 5-2,...,5-5) comprising a transducer array of an ultrasonic probe (2) are sequentially driven, and the echo signals obtained from each of the transducers (5-1, 5-2,...,5-5) are stored in memory (17-1, 17-2) as complex data, following A/D conversion, quadrature detection, and the like. These complex data are read following a wave-front locus which converges on the focal point set as an observation point, and further the vector directions of each of the complex data are subjected to phase correction and synthesized, thus obtaining an ultrasonic image with high resolution.