GE SENOGRAPHE DMR+ Technical Publications page 60

GE Medical Systems
REV1
3–3–2 Magnification
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Note:
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Note:
3–3–3 Examination of Chest Wall
Use of the Bucky is not recommended in magnification. The operator should use
the cassette holder.
Always make sure that the magnification plate is correctly locked in place before
starting an exam.
When magnification is selected, the system automatically selects the small focal spot (0.1).
When standard examination is selected, the system automatically selects the large
focal spot (0.3).
To maintain optimal image quality, the user must check on the control panel display that the
selected focus is dedicated to the selected examination mode:
Contact examination (normal) = 0.3
Magnification = 0.1
The object-film distance depends on the coefficient of magnification required.
Refer to the magnification values in Table 1–1, Chap 1.
Select configurations and kV values given in manual mode,Chap 2, Para 2–3. Refer to
Tables 2–1 and 2–2, Chapter 2.
Using an increase of 1 thru 2 kV will reduce exposure time.
Refer to Tables 2–1 and 2–2.
When the Bucky is removed, the mAs values are divided by 2 (approx).
Select configurations and kV values to suit thickness and density of region examined.
Select other parameters from Tables 2–1 and 2–2.
It is recommended to use the Bucky.
2-8
SENOGRAPHE DMR+
om 5128689-2-100