32
Children
HeadSeq
Indications:
Sequential mode for routine head studies for
children, e. g. tumors, hydrocephalus, hemorrhaging,
abnormalities, etc.
HeadSeq
kV 120
Effective mAs *
Slice collimation 1.5 mm
Slice width 4.5 mm
Feed/Scan 18.0 mm
Rotation time 0.75 sec.
Kernel C30s
Image order ca-cr
Contrast medium IV injection
Start delay exam dependent
Flow rate dependent upon needle size/Access site
Total amount 1 – 2 ml per kg of body weight
* The mAs should be adjusted to the age of the child.
* The conversion factor for an 8-week-old,
and a scan range of 90 mm was used.
** The conversion factor for a 7-year-old, 260 mAs
and a scan range of 117.5 mm was used.
Age kV mAs CTDI
w
Effective dose
(mGy) (mSv)
< 6 months 120 90 20.8 Male: 2.1*
Female: 2.1*
6 months – 120 150 34.8
3 years
3 years – 120 220 51.0 Male: 4.1**
6 years Female: 3.9**
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