Siemens EMOTION 16-Jun - Manual (Page 58)

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Dose Information
Adjusting the Image Noise
The correlation between attenuation and tube current
is defined by the analytical function described above.
This function may be adjusted to adapt the image qual-
ity (image noise) according to the diagnostic require-
ments and the individual preference of the radiologist.
– To adapt the image noise for a scan protocol the
Image Quality Reference mAs value in the Scan tab
card may be adjusted. This value can be adapted for
each protocol according to the user’s individual pref-
erences of image quality, and reflects the mean (eff.)
mAs value that the system will use for a reference
patient with that protocol and the corresponding
body region. The reference patient is defined as a
typical adult, 70 kg to 80 kg or 155 to 180 lbs (for
adult protocols), or as a typical child, 5 years, appr.
20 kg or 45 lbs (for child protocols). Based on that
value, CARE Dose 4D adapts the tube current (or the
mean (eff.) mAs value) to the individual patient size
or body region.
Note: Do not adapt the Image Quality Reference
mAs for an individual patient’s size. Only change
this value if you want to adjust the image quality.