公开(公告)号：US5495852A

公开(公告)日：1996-03-05

申请号：US379852

申请日：1995-01-27

申请人： Robert W. Stadler ,  W. Clem Karl ,  Robert S. Lees

发明人： Robert W. Stadler ,  W. Clem Karl ,  Robert S. Lees

IPC分类号： A61B5/107 ,  A61B8/08 ,  A61B8/00

CPC分类号： A61B8/0858 ,  A61B5/1076

摘要： An improved apparatus and method for measuring the diameter of an artery utilizes an ultrasonic imaging plane that is rotated slightly from the centerline of an artery to produce a "skew" image of the artery. The invention detects edge points on the image of near and far walls of the artery. It fits curves to the near and far end edge points and measures distances between the curves. Alternatively, it fits one curve to all the edge points and measures a parameter (such as minor diameter of an ellipse) of the curve. Finally, it estimates arterial diameter from the measurement.

摘要翻译： 用于测量动脉直径的改进的装置和方法利用从动脉中心线稍微旋转的超声成像平面，以产生动脉的“歪斜”图像。 本发明检测动脉近壁和远壁的图像上的边缘点。 它适合曲线到近端和远端边缘点，并测量曲线之间的距离。 或者，它适合于所有边缘点的一条曲线，并测量曲线的参数（如椭圆的小直径）。 最后，从测量中估计动脉直径。