Advanced CT procedures
include 3-Dimensional Scans, CT angiography and CT Guided Biopsy.
3-D multiplanar reconstruction is particularly useful in some situations
such as bone injury. Computer post-processing enables image
reformatting in other planes when patients are too ill to be positioned in the
standard fashion. Within limits, CT angiography can be a
non-invasive alternative to catheter angiography for patients who
are unfit or unstable.
Under certain conditions,
it may be necessary to obtain tissue samples for diagnosis. These minor surgical procedures may be carried out under CT
guidance in situations where open surgery is either dangerous or undesirable.
CT guides the insertion of the biopsy needle, and helps to obtain an
accurate site of the tissue sampling.