CT

CT Scanning uses a specialized X-ray to produce detailed pictures of the body which allows better understanding of trauma and disease.

CT scanning is usually an easy procedure. Patients lie on a table that moves in and out of an opening in the CT scanner. Abdominal CT patients may have to hold their breath for a few seconds. Patients who have CT scans of the head may be asked to remain very still for a few minutes.

How do patients prepare for the exam? 
Patients who have CT scans of the abdomen or pelvis are required to drink four to six cups of oral contrast before the CT exam. (Special instructions on when to drink the contrast will be provided.) Oral contrast helps the radiologist see the stomach and intestines and distinguish these organs from any abnormalities that may be present.

What is IV contrast? 
IV contrast (sometimes called X-ray dye) is a clear fluid that contains iodine. IV contrast is injected into the veins to highlight the tissues of the body or brain. (If patients are allergic to IV contrast or iodine, they should inform their doctor.)

What if a patient is pregnant? 
As with any X-ray procedure, pregnant patients (or those who think they might be pregnant) should consult a physician before the CT scan. Pregnant patients who must have a CT exam should inform the technologist so that steps can be taken to protect the unborn child.

When are results available? 
A radiologist interprets the CT scans the day they are performed. Some cases may require comparison to other exams, resulting in a slight delay. Hamilton provides results directly to physicians as soon as the radiologist verifies the report accuracy.

What is a CT Angiography (CTA)? 
(info provided by Radiology Info) Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical conditions. Angiography uses one of three imaging technologies and, in some cases, a contrast material to produce pictures of major blood vessels throughout the body.

Angiography is performed using: 1) x-rays with catheters  2) computed tomography (CT)
3) magnetic resonance imaging (MRI)

CT imaging uses special x-ray equipment to produce multiple images and a computer to join them together in multidimensional views. In CT angiography (CTA), computed tomography using a contrast material produces detailed images of both blood vessels and tissues.

For more information about CT Angiography (CTA) go to Radiology Info.