REFERENCE-BASED MOTION TRACKING DURING NON-INVASIVE THERAPY

摘要

During a focused-ultrasound or other non-invasive treatment procedure, the motion of the treatment target or other object(s) of interest can be tracked in real time based on the comparison of treatment images against a reference library of images that have been acquired prior to treatment for the anticipated range of motion and have been processed to identify the location of the target or other object(s) therein.

主权项

1. A method for tracking a moving anatomical object during a treatment sequence, the method comprising:
(a) prior to the treatment sequence, (i) acquiring a series of reference images of an anatomical region comprising the anatomical object during motion thereof, each reference image corresponding to a different stage of the motion, and (ii) processing the images to determine, for each image, a location associated with the object; and (b) during the treatment sequence, (i) acquiring treatment images of the anatomical region, (ii) correlating at least some of the treatment images to corresponding reference images based on similarity therebetween, and (iii) tracking the object in the correlated treatment images based on the locations associated with the object in the corresponding reference images.