| 摘要 |
PURPOSE:To prevent one image from being made hard to be seen by the other image at the time of superposing a Doppler image which is a three-dimensional image of the surface of a blood vessel on a tissue image which is a three dimensional image of the surface of the tissue. CONSTITUTION:A first Doppler image 100 showing a blood flow in the positive direction, a second Doppler image 102 showing a blood flow in the negative direction, and a tissue image 104 are respectively masked. Mask patterns corresponding to the respective images are shifted in their mask positions from each other alternately. Accordingly, when three images are superposed on one another and displayed, it is possible to produce such an effect that three translucent images are superposed on one another. |
