What is EBT
Electron beam (ultrafast) computed tomography (EBT or EBCT) is a revolutionary
approach to imaging, achieving acquisition speeds over 10 times faster
than conventional and helical CT equipment (which rely upon mechanical
rotation of x-ray tubes).
Utilizing a magnetically deflected electron beam and a stationary source-detector
pair, EBT employs the latest advances in target metallurgy, vacuum science
and fiber optics in order to obtain high resolution images of moving
objects. Obtaining scans in 1/10 or 1/20 second, it is perfectly designed
to evaluate moving structures like the heart and large surface areas
(like the colon) during a single breath-hold.
Designed originally for heart imaging, EBT has been available at major
university hospitals and imaging centers worldwide for many years and
is FDA approved for coronary calcium imaging, lungscanning, noninvasive
coronary angiography (EBA) and CT colonography. The radiation exposure
from EBT is much lower than from spiral CT examinations, especially
to potentially "radiosensitive" structures in the front of
the body.
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