Operating instructions

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Workflow Information
5.A Test Bolus with 10-20 ml is then administered with
the same flow rate as during the subsequent spiral
scan. Start the contrast media injection and the scan
at the same time.
6. Load the images into the Dynamic Evaluation func-
tion and determine the time to the peak enhance-
ment. Alternatively, on the image segment, click
select series with the right mouse button and posi-
tion an ROI on the first image. This ROI will appear
on all images in the test bolus series. Find the image
with the peak HU value, and calculate the time
“delta t” taken to reach the peak HU value (do not
forget to add the preset start delay time). This time
can then be used as the optimal start delay time for
the spiral scan.