| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To generate stable Doppler mode images with respect to an ROI or a gate position by reducing an influence of uneven rotation of a flexible shaft in an ultrasonic diagnostic apparatus using an ultrasonic probe of a mechanical radial scanning type for intracavity observation. <P>SOLUTION: The apparatus includes: a signal processing unit for performing orthogonal detection processing on a reception signal output from an ultrasonic transducer to generate a complex baseband signal; a memory for storing the complex baseband signal for at least two frames generated based on the ultrasonic echoes received along plural lines; a line selecting unit for selecting one line in each frame from among the plural lines based on the complex baseband signal stored in the memory; and an image signal generating unit for generating an image signal representing information on blood flow based on the complex baseband signal with reference to the line selected by the line selecting unit. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
