Siemens SOMATOM SENSATION CARDIAC A60 - Manual (Page 56)

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Bolus Tracking
How to do it
To achieve optimal results in contrast studies, use of
CARE Bolus is recommended. In case it is not available,
use Test Bolus.
CARE Bolus
This is an automatic bolus tracking program, which
enables triggering of the spiral scanning at the optimal
phase of the contrast enhancement.
General Hints:
1. This mode can be applied in combination with
any spiral scanning protocol. Simply insert “Bolus
tracking” by clicking the right mouse button in
the chronicle. This inserts the entire set up including
pre-monitoring, i. v. bolus and monitoring scan
protocol. You can also save the entire set up as your
own scan protocols (please refer to page 20 “How
to Create your own Scan Protocols”).
2. The pre-monitoring scan is used to determine the
level of monitoring scans. It can be performed at
any level of interest. You can also increase the mAs
setting to reduce the image noise when necessary.
3. To achieve the shortest possible spiral start delay
(2 s), the position of the monitoring scans relative
to the beginning of spiral scan must be optimized.
A “snapping” function is provided: