ULTRASONIC DIAGNOSTIC DEVICE AND RECEIVED DATA PROCESSING METHOD

The invention provides an ultrasonic diagnostic device and a received data processing method. In the present invention, an adaptive filtering process is performed between a first received data sequence in a first block and a second received data sequence in a second block. Specifically, the difference between a first average value of the first received data sequence and a second average value of the second received data sequence is calculated as a luminance change evaluation value (inter-block evaluation value). A first standard deviation of the first received data sequence is calculated as afirst variation evaluation value (evaluation value in the first block), and a second standard deviation of the second received data sequence is calculated as a second variation evaluation value (evaluation value in the second block). Whether to perform correction is determined on the basis of these evaluation values. The correction is applied to end data pieces d, e (and a, h) and intermediate data pieces b, c, f, g are m