Siemens Software version syngo CT 2005C ユーザーズマニュアル

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Workflow Information
 
49
– Move the monitoring scan line towards the optimal 
position and release the mouse button, it will be 
snapped automatically. (Trick: if you move the mon-
itoring scan line away from the optimal position the 
“snapping” mechanism will be inactive).
• Place a ROI in the premonitoring scan on the target 
area or vessel used for triggering with one left 
mouse click. (The ROI is defined with double circles 
– the outer circle is used for easy positioning, and 
the inner circle is used for the actual evaluation). You 
can also zoom the reference image for easier posi-
tioning of the ROI.
• Set the appropriate trigger threshold, and start con-
trast injection and monitoring scans at the same 
time. 
 
During the monitoring scans, there will be simulta-
neous display of the relative enhancement of the tar-
get ROI. When the predefined density is reached, the 
spiral acquisition will be triggered automatically.
• You can also initiate the spiral any time during the 
monitoring phase manually – either by pressing the 
START button or by left mouse clicking the START 
radio button. If you do not want to use automatic 
triggering, you can set your trigger threshold num-
ber extremely high so that it will not trigger auto-
matically, and you can start the spiral when you 
desire.
C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book  Page 49  Friday, April 8, 2005  9:55 AM