Siemens Software version syngo CT 2005C User Manual

Page of 321
Children
 
187
Hints in General
1.Topograms: 256 mm lateral topograms are defined 
for the head modes, and 512 mm TOP topograms 
are defined for the body modes. Please keep in mind 
that the children’s size can be dramatically different. 
You should press the “Hold Measurement“ button 
whenever the range shown on the real-time grow-
ing topogram is long enough, in order to avoid 
unnecessary radiation.
2. Gantry tilt is available for both, sequence and spiral 
scanning. However, image artifacts may occur if spi-
rals are acquired with a tilt angle greater than 8°.
3.For all head studies, it is very important for image 
quality purposes to position the patient in the center 
of the scan field. Use the lateral laser beam to make 
sure that the patient is positioned in the center.
4.Warm surroundings and dimmed lighting are helpful 
to make children more cooperative.
5.Sedation: Although the advent of the Multislice CT 
scanner has enabled the user to scan through an 
area of interest much faster than ever, sometimes, 
patient motion can still lead to severe motion arti-
facts seen on the resultant images. This becomes a 
factor especially with infants and younger children 
who are unable to hold still for the exam. Sedating 
this population may be a viable option for your insti-
tution. Of course, appropriate protocols need to be 
established at your specific institution. For instance, 
the drug of choice for specific ages/weights of these 
patients (taking into consideration the total time of 
the exam), the form of administration, patient 
preps, adequate monitoring of the patient (pre-scan, 
during the exam and post-scan) etc. should all be 
taken into consideration.
C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book  Page 187  Friday, April 8, 2005  9:55 AM