AGFA CR 85-XTM User Manual page 20

20 | CR Mammography | Introduction to the CR Mammography System
PMMA
thickness
(cm)
60
70
These settings are based on the recommendations of the EUREF guidelines for
digital mammography.
Alternatively, a PVI log-based dose setting or a less restrained EUREF dose
setting is possible with the DX-M and CR 30-Xm system. With these settings
the system is operated within a wider range of dose and hence image quality,
still providing sufficient image quality and acceptable dose or close-to-EUREF
adjustment respectively.
The use of W/Rh is restricted to cases in which low dose is applied (Target
AGD for DX-M with HM5.0 Dose Optimized). For a thickness less than 3 cm,
W/Rh is not recommended as this exposure technique might lead to
inadequate results. In order to avoid long exposure times, the use of
considerably higher kV is necessary (28 kV or more for medium thickness, 32
kV or more for 6 cm, 34 kV or more for a thickness more than 6 cm). W/Rh is
not recommended for magnification exposures.
For Mammography Systems based on CR MM2.0 (CR 25.0/CR 75.0
Digitizers)
For Mammography Systems based on CR MM3.0 (CR 35-X/CR 85-X
Digitizers); CR MM3.0R (DX-M Digitizer) and CR MM3.0T (CR 30-Xm
Digitizer)
2344Q EN 20180406 1001
Equiva- Target
lent AGD for
breast CR35-X/
thickness CR85-X/
(cm) CR30-Xm/
DX-M with
MM3.0R
75 3.9
90 5.5
Note: Dose and image quality variation with the PVI log setting
are not necessarily compliant with EUREF or similar guidelines.
Caution: When switching to a different type of plates and
cassettes, the AEC has to be recalibrated.
Caution: We strongly recommend to use the same settings as for
the CR35-X/CR 85-X digitizers, simply because they optimize
the overall system performance.
Target Target
AGD for AGD for
DX-M with DX-M with
HM5.0 HM5.0
Standard Dose Opti-
mized
3.3 2.7
4.7 4.5
Target
AGD for
DX-M with
HM5.0
Image
Quality
Optimized
3.9
5.5