| 主权项 |
1. A method for displaying a moving region of interest located within a body, comprising:
obtaining an image of the moving region of interest at a first time; acquiring a plurality of raw patient reference sensor (PRS) readings over time where the raw PRS readings indicate at least one of a position and an orientation of a PRS and wherein the PRS is associated with the moving region of interest; filtering the raw PRS readings and outputting filtered PRS readings by (i) outputting the filtered PRS readings as a baseline value while the raw PRS readings are within a predetermined range of the baseline value; and (ii) outputting the filtered PRS readings as unchanged raw PRS readings when the raw PRS readings reach or vary outside of the predetermined range of the baseline value; generating, using a computer processing apparatus, a motion compensation function based on at least the filtered PRS readings; determining, using a positioning system, a subject position and orientation of a medical device at a second time; correcting, using the computer processing apparatus, the subject position and orientation of the medical device using the motion compensation function to thereby compensate for the motion of the region of interest between the first time at which the image of the region of interest was acquired and the second time at which the subject position and orientation of the device was determined; and superimposing, using a superimposing processor, a representation of the medical device on the image in accordance with the corrected position and orientation. |
