Siemens SOMATOM

172
Head
HeadNeuro
Indications:
Special spiral neuro mode for dedicated head studies.
Two ranges are predefined for the base of the skull
using an acquisition of 16x0.6 mm and for the cere-
brum using an acquisition of 4x0.6 mm.
A range for the base of 4 cm will be covered in
9.58 sec., a range for the cerebrum of 8 cm will be cov-
ered in 68.67 sec.
Emotion 16 Base Cerebrum
kV 130 130
Effective mAs/
Quality ref. mAs
250 270
Rotation time 1.0 sec. 1.0 sec.
Acquisition 16 x 0.6 mm 4 x 0.6 mm
Slice collimation 0.6 mm 0.6 mm
Slice width 4.0 mm 5.0 mm
Feed/Rotation 5.3 mm 1.3 mm
Pitch factor 0.55 0.55
Increment 4.0 mm 5.0 mm
Kernel H31s H31s
CTDI
Vol
66.50 mGy 79.65 mGy
Effective dose Male:
1.52 mSv
Female:
1.73 mSv
Male:
2.29 mSv
Female:
2.55 mSv