| 摘要 |
PURPOSE:To eliminate unnecessary signal components such as noise or the like near the focus point at a low cost so as to obtain an image of high image quality. CONSTITUTION:A wave receiving dynamic focus method ultrasonic diagnostic apparatus includes a wave receiving focus portion 5, and a replacing means including a memory 8 for main sound ray, a memory 9 for replacement and a switching timing control portion 10. The wave receiving focus portion 5 is adapted to differ a focus point on every adjacent scanning line. The replacing means replaces image data near the focus point with image data of the same depth in the preceding scanning line. |
