Computer Tomography (CT)

Computed Tomography (CT) is a sophisticated imaging technique that can demonstrate anatomy at different levels within the body. This technique provides clear, sharp, detailed images. During CT imaging, the x-ray source rotates around the patient and each rotation produces a single cross-sectional view of the anatomy, like a slice in a loaf of bread. CT allows physicians to see a horizontal piece of the body, just as if you were taking a slice of bread out of a loaf.1

To perform this type of imaging, special equipment is needed. As shown, a lightspeed CT scanner is being used to perform an abdominal scan. The lightspeed enables the technologists to produce thinner slices at a faster speed. This allows more versatility in the type of anatomy that can be covered and reduce the amount of time it takes to perform the procedure.

With the continuous rise in technology, CT, along with other areas of medicine, is making immense strides in patient care. Three-dimensional imaging is just one of the sophisticated imaging techniques performed by CT. This technique produces life-like images of the body. Physicians are able to visualize patient anatomy more realistically. 3D imaging may be performed during a variety of CT exams. For example, 3D can be used to visualize the abdomen, lungs, extremities, skull, facial bones, and heart. 3D is often used to evaluate fracture sites of broken bones and stent placements within the human body.

Another imaging technique used at JMCGH is CTA (Computed Tomography Angiography). It allows for 3D imaging of major arteries and veins throughout the body. Why perform a CTA? It is often used in diagnosing aneurysms, pulmonary emboli, and other vascular structures within the body.

3D Imaging/Face and Skull

What should I expect during a CT exam?

  • You may have laboratory test drawn prior to examination
  • The technologist or radiologist will ask for a medical history
  • Depending upon doctor's orders, you may receive oral, rectal or IV contrast
  • You will be asked to remove metal and dense objects
  • You will be asked to lie down on a padded table
  • The type of CT scan ordered determines the amount otime spent in radiology
  • The examination is checked and read by a radiologist

West Tennessee Healthcare (WTH) does not exclude, deny benefits to, or otherwise discriminate against any person on the grounds of race, color, national origin, age, religion, disability, Limited English Proficiency or sex, including discrimination based on gender identity, sexual orientation, sex stereotyping or pregnancy in admission to, participation in, or receipt of the services and benefits under any of its programs and activities, whether carried out by WTH directly or through a contractor or any other entity with which WTH arranges to carry out its programs and activities.

For further information about this policy, contact Amy Garner (731) 541-9914.