SYSTEM AND METHOD FOR ABDOMINAL SURFACE MATCHING USING PSEUDO-FEATURES

摘要

A system and method for using pre-procedural images for registration for image-guided therapy (IGT), also referred to as image-guided intervention (IGI), in percutaneous surgical application. Pseudo-features and patient abdomen and organ surfaces are used for registration and to establish the relationship needed for guidance. Three-dimensional visualizations of the vasculature, tumor(s), and organs may be generated for enhanced guidance information. The invention facilitates extensive pre-procedural planning, thereby significantly reducing procedural times. It also minimizes the patient exposure to radiation.

主权项

1. A method for performing registration for percutaneous surgical procedures, comprising the steps of:
generating a computer model of a portion of the outer surface of a patient from pre-procedural image data; marking a set of pseudo-features on the generated surface; acquiring an intra-procedural image of the corresponding portion of the outer surface of the patient; generating a set of intra-procedural pseudo-features by digitizing one or more contours on the corresponding portion of the outer surface of the patient; and performing an alignment or registration of the model generated from the pre-procedural data with the intra-procedural patient surface data.