Workflow Information

Bolus Tracking

This is an automatic Bolus Tracking program, which enables triggering of the spiral scanning at the optimal phase of the contrast enhancement.

General Hints

This mode can be applied in combination with any spiral scanning protocol. Simply insert “Bolus Track- ing” by clicking the right mouse button in the chron- icle. This inserts the entire set up including pre-mon- itoring, i.v. bolus and monitoring scan protocol. You can also save the entire set up as your own scan pro- tocol.

The pre-monitoring scan is used to determine the position of the monitoring scans. It can be per- formed at any position of interest. You can also increase the mAs setting to reduce the image noise when necessary.

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:

After the Topogram is performed, the predefined spi- ral scanning range and the optimal monitoring posi- tion will be shown.

If you need to redefine the spiral scanning range, you should also reposition the monitoring scan in order to keep the shortest start delay time (2 s). (The distance between the beginning of the spiral scan- ning range and the monitoring scan will be the same).

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Siemens Software version syngo CT 2005C manual Bolus Tracking, General Hints