Operating instructions

86
HeadSeq05s
Indications:
Sequential mode for routine head studies for
children, e.g. tumors, hydrocephalus, hemorrhaging,
abnormalities, etc.
HeadSeq
kV 120
mAs *
Slice collimation 1.5 mm
Slice width 4.5 mm
Feed/Scan 18.0 mm
Rotation time 0.5 sec.
Kernel C30f
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, and a scan
range of 121.5 mm was used.
Age kV mAs CTDI
Vol
Effective dose
(mGy) (mSv)
< 6 months 120 90 17.3 Male: 1.7*
Female: 1.7*
6 months – 120 150 28.8
3 years
3 years – 120 220 42.2 Male: 3.4**
6 years Female: 3.3**
Children