SURGICAL ASSISTANCE PLANNING METHOD USING LUNG MOTION ANALYSIS

摘要

A medical analysis method for estimating a motion vector field of the magnitude and direction of local motion of lung tissue of a subject is described. In one embodiment a first 3D image data set of the lung and a second 3D image data set is obtained. The first and second 3D image data sets correspond to images obtained during inspiration and expiration respectively. A rigid registration is performed to align the 3D image data sets with one another. A deformable registration is perforated to match the 3D image data sets with one another. A motion vector field of the magnitude and direction of local motion of lung tissue is estimated based on the deforming step. The motion vector field may be computed prior to treatment to assist with planning a treatment as well as subsequent to a treatment to gauge efficacy of a treatment. Results may be displayed to highlight.

主权项

1. A medical method for observing the local motion of a medical implement in a lung of a subject comprising the steps of:
a) receiving first image data of the lung in a first state; b) receiving second image data of the lung in a second state; c) registering the first image data and the second image data with one another using a reference feature; d) deforming at least one of the following: i) the first image data of the lung to match the second image data of the lung, and ii) the second image data of the lung to match the first image data of the lung; and e) generating a motion vector field of the magnitude and direction of local motion of lung tissue based on the deforming step.