Cone-Beam Computed Tomography and Navigation

Cone-beam computed tomography (CBCT) is a rather new image modality which is now especially in use in dentistry and ENT surgery. Image acquisition comprises a rotating system of x-ray tube and detector deploying 200–600 fluoroscopic image from an examination object. Image reconstruction starts subsequently where mainly filtered back projection and its modifications are used. The reconstructed dataset is displayed in specialized viewers. Moreover these DICOM (digital imaging and communications in medicine) stacks can be used for purposes in image guided surgery.