64-Slice CT (Computed Tomography)

Washington Health's Outpatient Imaging Center uses a 64-slice computed tomography (CT) scanner capable of producing 64 high-resolution images per rotation. This allows most scans times to be less than 15 seconds, reducing exam time while maintaining image quality. The thin slices, comparable to a credit card, support advanced studies, including cardiac imaging. These images are combined to form a three dimensional view of the patient's anatomy, allowing physicians to assess such conditions as blockages in the coronary arteries, as well as the motion and pumping action of a patient's heart.

What is Computed Tomography?

A computed tomography (CT) scan uses x-rays to make detailed, cross sectional images of the body. During the exam, the patient lies on a table that moves through a doughnut-shaped machine. The CT scanner sends x-rays through the body area being studied. Each rotation of the scanner takes less than a second and provides a picture of a thin slice of the organ or area. All of the pictures are saved as a group on a computer. 

In some cases, contrast material is used to make structures and organs easier to see on the CT images. This helps clinicians evaluate blood flow, find tumors, and identify other abnormalities. Depending on the type of exam, contrast may be administered through an IV, ingested orally, or rectally. Images may be taken before and after it is used.

CT scans can be used to examine any part of your body, including the chest, abdomen, pelvis, and extremities. They provide detailed imaging of organs, such as the liver, pancreas, intestines, kidneys, bladder, adrenal glands, lungs, heart, and more such as blood vessels, bones, and the spinal cord. 

CT scans are performed by certified radiology technologists specializing in computed tomography. The images are interpreted by a radiologist and a detailed report is sent to the referring physician.

A CT scanner is a large donut shaped machine connected to a flat table. During the exam the patient lies flat on the table which moves slowly through the scanner. The exam is quick, with the scan time approximately 15 seconds, and a technologist is always close by to assist the patient.