Method and system for indexing blood vessel corresponding positional relations in multi-angle angiography

Abstract

A system and method for retrieving a blood vessel corresponding positional relation under multi-angle angiography. The system includes an angiography machine, an angiographic image receiving module, a center point calibration module, a corresponding feature point detection module, and a feature point corresponding blood vessel module. The angiography machine is used for performing angiography and collecting angiographic images of multiple projection body positions. The angiographic image receiving module is used for receiving an angiographic image and transmitting the angiographic image to the center point calibration module. The center point calibration module is used for calibrating a center point offset caused by the multi-angle angiography system and transmitting the result to the feature point detection module. The feature point detection module receives several feature points of a target blood vessel of a reference projection angle angiographic image and detects corresponding feature points of a second projection angle angiographic image via a spatial epipolar constraint relationship. The feature point corresponding blood vessel module is used for determining a blood vessel on which the feature points are located. The system simplifies complexity of detection on corresponding relationship, and ensures accuracy of the result while implementing noninvasive detection.