Intravascular ultrasonic image analysis using an active contour method.

摘要

A system for determining a boundary contour (110) of a blood vessel from an image of intravascular ultrasound (100) where the ultrasound image (100) is generated from data acquired radially within the blood vessel by a ultrasonic device (10), comprising: a display component configured to display the ultrasound image (100), the ultrasound image (100) a cross section of a blood vessel and that is a Cartesian image, including ultrasound image (100) a representation of a boundary of the blood vessel; and an analytical component configured for receiving selected control points (105) along the boundary, interpolating between the control points (105) to generate a boundary contour (110), and optimizing the boundary contour (110) adjusting each of the control points (105) based on a gradient image (730) that includes a distinguished boundary, with the gradient image (730) determined from the ultrasound image (100) wherein the component presentation is further configured for displaying a plurality of ultrasound images (100) are a sequence of images of the blood vessel, with the ultrasound image (100) an image of departure; and the analytical component is further configured to receive the control points (105) along the boundary on an ending image from a plurality of ultrasound images (100) so that at least one intermediate image is between the images starting and ending, and for interpolating between the control points (105) of the starting and ending images to automatically generate a boundary contour (110) in at least one intermediate image.