REGRESSION FOR PERIODIC PHASE-DEPENDENT MODELING IN ANGIOGRAPHY

摘要

A periodic time-varying model of a guide wire, other device, or vessel is created from higher contrast CINE acquisition. A multivariate curve regression is used for periodic, phase dependent motion modeling. This model is then used to locate or track the guide wire, other device or vessel in lower contrast fluoroscopy images during intervention.

主权项

1. A method for modeling in angiography, the method comprising:
obtaining a first sequence of frames of CINE acquisition data, the CINE acquisition data of the frames representing a curved medical device over a physiological cycle; modeling the curved medical device as a function of phase of the physiological cycle, the modeling providing a time-varying model of the curved medical device; obtaining a second sequence of frames of fluoroscopy data, the fluoroscopy data of the frames representing the curved medical device over the physiological cycle; tracking the curved medical device in the frames of the fluoroscopy data as a function of the time-varying model of the curved medical device; and generating a fluoroscopy image of the curved medical device, the fluoroscopy image indicating the curved medical device from the tracking.