公开(公告)号：US5921931A

公开(公告)日：1999-07-13

申请号：US827724

申请日：1997-04-08

申请人： Matthew O'Donnell ,  Michael J. Eberle ,  Douglas N. Stephens ,  Gerald Litzza ,  Randy Ziegenbein ,  David Bleam ,  Ching-Chen Wu

发明人： Matthew O'Donnell ,  Michael J. Eberle ,  Douglas N. Stephens ,  Gerald Litzza ,  Randy Ziegenbein ,  David Bleam ,  Ching-Chen Wu

IPC分类号： A61B8/06 ,  A61B8/12 ,  G01S7/52 ,  G01S15/89 ,  A61B8/00

CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  G01S7/52026 ,  G01S7/52071

摘要： A blood flow detection and imaging method and system is described for displaying images in accordance with signals transmitted from an intravascular ultrasound transducer probe. The image processor includes means for independently designating persistence factors for smoothing calculated speed and power of the dynamic portion of a field of view within a vasculature. Furthermore, the designation of a particular image point within a field of view as a dynamic image point (such as a blood flow region) as opposed to a static image point (such as a tissue region) is determined by averaging signal values for image points proximate to an image point of interest over both time and space.

摘要翻译： 描述了血流检测和成像方法和系统，用于根据从血管内超声换能器探头发送的信号显示图像。 图像处理器包括用于独立地指定持久性因子的装置，用于平滑脉管系统内的视场的动态部分的计算速度和功率。 此外，通过对图像点的信号值进行平均，确定与静态图像点（例如组织区域）相对的作为动态图像点（例如血流区域）的视野内的特定图像点的指定 接近于时间和空间上的图像感兴趣点。