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Dose Information
Scanning with CARE Dose 4D If the settings of Image Quality Reference mAs are cor-
rectly predefined*, no further adjustment of the tube
current is required to perform a scan.
CARE Dose 4D automatically adapts the tube current to
different patient sizes and anatomic shapes, but it
widely ignores metal implants.
Note: Otherwise the magnification of the topogram
would be distorted which would lead to an under-
estimation or overestimation of the required eff.
mAs.
For an accurate mAs adaptation to the patient’s size
and body shape with CARE Dose 4D, the patient should
be carefully centered in the scan field.
When using protocols with CARE Dose 4D for body
regions other than those they are designed for, the
image quality should be carefully evaluated.
As CARE Dose 4D determines the (eff.) mAs for every
slice of the topogram, a topogram must be obtained
for use of CARE Dose 4D.
*For Siemens scan protocols of SW version syngo CT
2007E, the settings of CARE Dose 4D are already pre-
defined but may be changed to meet the customer’s
preference of image quality (image noise).