Cone Beam CT
This technology gets its
name from the cone-shaped beam of X-rays used to collect a complete image.
Unlike conventional CT, which takes a series of thin-sliced X-ray images and
then stacks them together to create a complete picture, cone beam CT produces a
more sophisticated image in less time and with less X-ray exposure. Cone-beam
CT is an emerging technology with many advantages over conventional CT scans,
such as fast volume coverage speed, efficient use of x-ray power, and
sufficient data for exact 3D image reconstruction. Cone-beam CT enhances the
role treatment simulation, verification, and planning.
has the capability of acquiring and reconstructing 3D volumetric data in one
gantry rotation. Digital imaging allows the operator to identify the area to be
scanned by simply marking the top and bottom margins of the anatomy on the
images taken are rapidly reconstructed into a 3D picture using a special
computer program. This allows for more precise targeting of the area to be
treated because the image is taken when you are in the treatment position just
before the actual treatment, enabling the treatment plan to be adjusted for any
shift of internal organs.