3D Computerized Imaging

BASIC FACTS

  • Three-dimensional computerized imaging, or 3D scanning, most often refers to anatomic renderings generated from a rapid form of computed tomography (CT) scanning. In this form of scanning, multiple x ray sources and detectors continuously rotate around the patient in a spiral pattern as the patient moves through the scanner. The data obtained can be used to produce three-dimensional images.
  • The rapidity of multi-detector scanning allows the entire chest, abdomen, and pelvis to be scanned in about 15 seconds.
    3D or multi-planar CT displays provide images of broad sections of the body and provide more information about blood vessels, organs, and other tissues than conventional axial slices.
  • Three-dimensional (3D) computerized imaging is an advanced form of computed tomography (CT) scanning that creates computer generated three-dimensional images. 3D computerized imaging:
    • Quickly scans large sections of the body
    • Causes no pain
    • Produces high-resolution, 3D images that can be manipulated using computer software

PRE-TEST GUIDELINES

Patients may be asked to:

  • Avoid solid foods for about 4 hours before the procedure
  • Change into a hospital gown or a pair of loose fitting pants and top
  • Remove any jewelry or other objects that may interfere with the x rays

RISK FACTORS & POSSIBLE COMPLICATIONS

3D computerized imaging carries the following risks:

  • X rays can damage body cells and fetuses (tell the physician if you are pregnant)
  • The contrast dye may cause an allergic reaction

WHAT TO EXPECT

During the test, the patient lies on a scan table that slides into the gantry (a donut-shaped device that houses the scanning equipment). The table slides at a constant rate as the x ray tubes inside the scanner rotate continuously, taking as many as 1,000 images per rotation, which are then transmitted to a computer. The resulting images are then displayed on a monitor in a high-quality, 3D format.

If the patient needs a contrast x ray to highlight blood vessels, he or she will be administered an intravenous injection of a contrast material into the arm or hand. To obtain abdominal contrast images, patients drink an oral form of the contrast agent.

In most cases, the patient will be alone during the test. A technician will be able to see, hear, and speak with the patient at any time during the test.

POST-TEST GUIDELINES

Patients can resume normal activities immediately.

[NOTE: This is an abbreviated version of the complete article. If you would like to read this article in its entirety, please call our office at (307) 778‐1849 and ask to meet with one of our specialists to receive a ‘Prescription Pad’ registration form. If you already have a ‘Prescription Pad’ form, please login and follow the instructions listed on the form. If you experience any issues during the registration process, please call member services at 1 (800) 603-1420 for assistance.]

Medical Review Date: November 24, 2009 / Copyright © 2012 NorthPoint Domain, Inc. All rights reserved. This material cannot be reproduced in digital or printed form without the express consent of NorthPoint Domain, Inc. Unauthorized copying or distribution of NorthPoint Domain’s Content is an infringement of the copyright holder’s rights.

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