REGISTRATION OF VIDEO CAMERA WITH MEDICAL IMAGING

摘要

Intraoperative camera data is registered with medical scan data. The same salient features are located in both the medical scan data and the model from the camera data. The features are specifically labeled rather than just being represented by the data. At least an initial rigid registration is performed using the salient features. The coordinate systems of the camera and the medical scan data are aligned without external positions sensors for the intraoperative camera.

主权项

1. A method for registration of a video camera with a preoperative volume, the method comprising:
fitting an atlas labeled with first salient features to the preoperative volume of a patient; acquiring depth measurements from an endoscope or laparoscope having the video camera and inserted within the patient; imaging a medical instrument in the patient with the video camera; receiving indications of second salient features by the medical instrument being positioned relative to the second salient features; creating a three-dimensional distribution of the depth measurements labeled with the second salient features; registering the three-dimensional distribution with the preoperative volume using the second salient features of the three-dimensional distribution and the first salient features of the preoperative volume; and generating an image of the patient from the preoperative volume and a capture from the video camera, the image being based on the registering of the preoperative volume with the three-dimensional distribution.