ULTRASONIC DOPPLER BLOOD FLOW IMAGING APPARATUS

摘要

PURPOSE:To synthesize the same time phase parts not only to relax the time difference in a frame but also to observe the blood flow of a fine time phase, by collecting the data corresponding to a plurality of frames so as to provide overlapped time phases while shifting collection start times. CONSTITUTION:A transmitting and receiving control circuit 1 performs the scanning control of a transmitting and receiving circuit 3 and an ultrasonic probe 2 in order to collect the data corresponding to a plurality of frames so as to provide overlapped time phases on the basis of the cardioelectric synchronous signal from a memory controller 12 while the collection start times of frame data are shifted at every heart rate at a predetermined time interval. The collected data of a plurality of the frames are stored in the memories 7f, 7g within a digital scanning converter (DSC) 7'. This DSC 7' synthesizes the same time phase parts in the data of a plurality of the frames to form a frame which is, in turn, supplied to a color monitor 9.