Computerized Tomography (CT)

Computed Tomography (CT) images the body in cross-sectional planes through the use of x-rays. An intravenous injection of contrast media (iodine) is used during most exams. Compared to standard x-ray the invention of CT is a great advancement for imaging of the brain, lung, spine, and solid organs of the body. Information obtained during the x-ray exposure is processed by a high-speed computer, which produces multiple computerized images of the area.

Most patients tolerate the exam very well, although a small percentage may feel slightly claustrophobic. CT is an excellent diagnostic tool for identifying the origin and nature of masses in various areas of the body.

CONTRASTED CT EXAMS

CT Abdomen-- Oral Contrast (Barium) & Injection-
Multiple images are made of the liver, pancreas, spleen, great vessels (aorta and vena cava), kidneys, and retroperitoneal area.

CT Pelvis-- Oral Contrast (Barium) & Injection-
Images are made through the lower abdomen (pelvis) to demonstrate possible abnormalities in the prostate, uterus, ovaries, bladder or mesentery.

CT Chest-- Contrast Injection-
Images the lungs and bronchi as well as the esophagus, midline chest structures including the ascending aorta and superior vena cava and diaphragm.

CT Head-- Contrast Injection-
Images the brain tissue and the ventricles of the brain.

CT Orbits-- Contrast Injection-
Images the orbit for diagnosis of fractures following injury.

CT Neck-- Contrast Injection-
Images the structures of the neck including lymph nodes.

Examination Time: 45 minutes to 1 hour.

Precautions: Patients who are allergic to iodinated contrast (x-ray dye) should be medicated prior to their examination. Check with the patient's physician or a radiologist before scheduling.

*Note: Patients with a history of renal insufficiency should have BUN and creatinine levels drawn prior to scheduling. Please have this information available when scheduling the exam.

Patient Instructions: No prep is necessary for any CT procedure.

NON-CONTRASTED CT EXAMS:

The following CT's usually require no preparation or contrast material:

CT Sinuses--
Images sinus cavities and masses within the maxillary, frontal sphenoid, and ethmoid sinuses.

CT Spine (Cervical & Lumbar)--
Used to evaluate spinal stenosis, disc herniation, and degenerative disc disease.

CT Extremities--
Is usually non-contrasted but some soft tissue masses may need to have a contrast injection.

Examination Time: 30 to 45 Minutes.

Precautions: None

Patient Instructions: No prep is necessary for any CT procedure.

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