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KDMC Offering 256-Slice CT Scanning

5 Radiologists w 256-CTThe next quantum leap in CT technology has arrived at King’s Daughters Medical Center (KDMC) and offers unparalleled quality. The 256-slice CT scanner is a new generation of scanner that improves on the technology offered by 64-slice scanners that became widely available in 2005. With four times the imaging power of the previous generation, the 256-slice CT scanner combines power and speed, creating extremely high-resolution images with reduced radiation exposure.

“This new CT allows for significantly faster exams than on other CT scanners with a much lower radiation exposure,” said Todd Kranpitz, director of Radiology. “The system is faster and safer than other CTs in common use.”

The new scanner can create images of the body more than three inches wide in a single rotation, which takes less than one-third of a second. A head-to-toe exam can be acquired in about 10 seconds. The speed and power of the scanner is very useful for at-risk or emergency patients, as well as for children.

The primary benefit of wide volume coverage is the ability to perform superb examinations of large organs, such as the heart and liver. It now takes about a five second scan, and less than one second of X-ray exposure, to get detailed images of the heart and coronary arteries. It is fast enough to get motionless pictures of the heart despite heart rates of up to 100 beats a minute.

As CT scanner technology has advanced, each successive system has built upon CT’s proven clinical capabilities with the best performance advances at 4-, 16-, and 64-slice, bringing a wealth of new applications. CT imaging consists of X-rays sent through the body to produce digitized signals that can be detected and reconstructed by computers. Each of the 256 detectors of the new machine picks up a “slice” of an organ or tissue. The more detectors, the better the picture resolution. A computer puts all the slices together to render detailed 3-D images.

The new scanner is ideal for:

  • vascular studies
  • patients requiring special attention (such as children, older patients, trauma patients)
  • larger patients -- the scanner can accommodate patients up to 450 lbs
  • motionless pictures of the heart are possible at heart rates up to 100 beats a minute

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