42
HeadAngio
Indications:
Spiral mode for head CT angiography, e. g. cerebral
vascular abnormalities, tumors etc.
HeadAngio 2
nd
reconstr.
kV 80
Effective mAs *
Slice collimation 0.75 mm
Slice width 2.0 mm 1.0 mm
Feed/Rotation 6.8 mm
Rotation time 0.5 sec.
Kernel H20f H10f
Increment 2.0 mm 0.7 mm
Image order ca-cr
* The mAs should be adjusted to the age of the child.
* The conversion factor for an 8-week-old,
and a scan range of 40 mm was used.
** The conversion factor for a 7-year-old and a scan
range of 60 mm was used.
Age kV mAs CTDI
w
Effective dose
(mGy) (mSv)
< 6 years 80 100 8.4 Male: 0.4*
Female: 0.4*
6 years – 80 150 12.6 Male: 0.3**
12 years Female: 0.4**
Children
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