is a procedure performed using a multi-slice CT. The
current multi-slice CT that exquisitely produces coronary
artery images is a 64-slice CT scanner.
This scanner has a special x-ray
tube and rotation speed, capable of performing 3 rotations
in a second. In each rotation, 64-slices are produced,
giving us approximately 194 slices per second. This
is the fastest scanner in the industry, currently.
Speed is extremely important in
our ability to "freeze" the heart. Since
the heart is a rapidly moving structure, the only
way to image structures within it, is if we can scan
as fast as the heart beats or close enough.
All scans are gated to the ECG trace.
This allows us to position our data acquisition accurately
in specific phases.
Using this modality we can perform
the following procedures as part of a cardiac CT examination.
- Calcium Scoring
- Coronary Artery Imaging
- Functional Assessment.