| 摘要 |
The device has a set of marker spheres (10a, 10b, 10c, 20a, 20b, 20c), and a connecting device for connecting the marker spheres to each other. The connecting device allows some marker spheres to be moved relative to each other to adapt the shape of the marker device to a contour of a curved surface of a body part. The marker spheres are arranged to determine whether the marker spheres are in front of the body part or behind the body part relative to the imaging device, when an imaging device obtains a medical image of the deformable marker device surrounding the body part. |
