Siemens SOMATOM Sensation Cardiac Version A60 Operations Instructions download pdf (Page 22)

General

How to Create your own

Scan Protocols

User-specific scan protocols can be saved with the

following basic procedure:

– Register a test patient, patient position must be

Head First-Supine.

– Select a scan protocol.

– Set the table position to 0 (either at the gantry panel,

or on the topogram routine card).

Contrast Medium 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.

As a rule of thumb, the contrast medium injection

should be stopped when the scan (or acquisition)

is finished. Keep this in mind, as you may save contrast

medium on your routine studies since the Multislice

spiral scan can be up to 32 times faster than a 1 second,

single slice spiral scan.

For CTA studies (arterial phase), the principle is to keep

contrast injection for the whole scan. Thus, the total

amount of contrast medium needed should be calcu-

lated with the following formula:

CM = (start delay time + scan time) x flow rate.

CARE Bolus or Test Bolus may be used for optimal

contrast bolus timing. Please refer to the Application

Guide for special protocols.

* For more information regarding the general use

of drugs and doses mentioned in this guide, please

refer to page 2.

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Siemens SOMATOM Sensation Cardiac Version A60 Operations Instructions Page 22