3D interventional imaging with 2D X-ray detectors

Abstract

Pre-operative images, such as CT or MRI, are often necessary for CAMI. However, they could be replaced by interventional 3D reconstruction from 2D x-ray sensors. 3D reconstruction from classical image amplifiers needs the correction of geometric distortions due to the magnetic fields. We investigate new calibration marker schemes exploiting spectral properties of the x-ray transform. According to Shannon theory, no information is lost with these new schemes, even if the markers can be seen in each image. Numerical experiments from both phantom and real data are provided.