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Ct colonography – Siemens SOMATOM SENSATION CARDIAC A60 User Manual

Page 67

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CT Colonography

We recommend using a tube voltage of at least 120 kV.

A comprehensive study consists of four sections:
Preparation, examination in supine & prone positioning
and post processing.

• Patient preparation

In the case of CT Colonography, adequate prepa-
ration in bowel cleansing must be done prior to the
CT examination.

Important for good results in a CT Colonography
examination is the optimal preparation of the
patient.

The patient has to start with a diet and bowel
cleaning two days prior to the examination like for

a conventional Colonoscopy.

• Patient examination

The bowels can be delineated with air. Or, if desired,
with carbon dioxide, water or iodine/barium suspen-
sion.

Have patient inflate colon with air to maximum
tolerance.

To decrease colon spasm, e. g. Buscopan

or

Glucagon

can be given IV.

Usually a prone and supine examination are done
to differentiate between polyps and fecal matter
within the colon.

• Postprocessing

For further information on the syngo Fly Through
Application, please refer to the Application Guide
“Clinical Options”.