Fig. 4: Example of scanning in the shoulder region.
High
attenuation,
high mA
Low attenuation,
low mA
18
General
Fig. 5: Principle of CARE Dose tube current adaptation.
• CARE Dose is pre-selected by default for most standard
protocols. It can be switched on/off in the scan card.
• For the average patients examination, CARE Dose
does not require any manual changes to the scan
protocol. However, the mAs must be adapted manu-
ally for obese and pediatric patients.
• The mean value of the mAs applied will be lower
than what you have selected. Although the average
mA for the entire scan will be lower than selected, we
allow the scanner to apply increased mA levels for
the high attenuation views. This may cause different
results of the tube load controller when switching
on and off CARE Dose.
• The mean value of the effective mAs applied is shown
in the image text.
lateral
1.00
0.75
0.50
0.25
rel. units
a.p.
time
Object attenuation
Modulated tube current
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