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SCANNING: Head Scanning
6.13 Head Scanning
6.13.1 Setup Patient
Cranial Fixation
To reduce the risk of excessive image artifacts, be sure to angle the skull clamp such
that it is substantially angled with respect to the tomographic scan (CT Ring rotation)
plane - see
Figure 107
below.
Figure 107
To further reduce CT image artifacts caused by the cranial fixation head frame, ensure
that non-metallic skull pins are employed.
Feet-first Patient
Orientation
(Optional)
When using a separate table system for patient cranial fixation, ensure that the scan
region of interest is extended beyond the leading edge of the table.