Siemens Software version syngo CT 2005C User Manual

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Workflow Information
 
47
IV Injection*
The administration of a contrast medium depends on 
the indication and on the delay times to be used during 
the examination. The patients weight and circulatory 
situation also play a role. In general, no more than 3 ml 
per kg of body weight for adults and 2 ml per kg of 
body weight for children should be applied.
For CTA studies (arterial phase), the principle is to keep 
contrast injection throughout the duration of the scan. 
Thus, the total amount of contrast medium needed 
should be calculated with the following formula:
CARE Bolus or Test Bolus may be used for optimal con-
trast bolus timing. Please refer to the special protocols. 
To achieve optimal results in contrast studies, the use 
of CARE Bolus is recommended. In case it is not avail-
able, use Test Bolus. Once completed, load images into 
Dynamic Evaluation for calculation of Time to Peak 
enhancement.
*For more information regarding the general use of 
drugs and doses mentioned in this guide, please 
refer to page 2.
CM = (start delay time + scan time) x flow rate.
C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book  Page 47  Friday, April 8, 2005  9:55 AM