Siemens ARCADIS Varic Operator's Manual page 74

System Description
Subtraction (SUB)
Roadmap
Display of
pulse frequency
28
of 44
The subtraction technique enables an isolated display of the vascular system
after injection of the contrast medium by means of background subtraction.
( Register 5: Examination, Page 21)
Press this key.
– The Subtraction mode is selected.
– The LED lights up.
The Roadmap technique enables the user to position a catheter precisely in a
blood vessel under fluoroscopy.
( Register 5: Examination, Page 23)
Press this key.
– The Roadmap mode is selected.
– The LED lights up.
Sometimes the displayed pulse frequency does not correspond to the pulse fre-
quency defined in the examination program. However, a highly improbable com-
bination of settings must have been selected:
Create user-specific exam set for body region "All" with bones displayed
white, high dose and PFC 10 p/s.
Now, PFC mode and the exam set stated above will be saved in the basic set-
tings for the "All" body region.
If the system is switched off and back on, and a patient is newly registered,
now 8 p/s will be displayed in "Basic" mode instead of 10 p/s (CFC).
If you now switch to "Extended" mode and register a new patient, 10 p/s will be
correctly displayed. If you then switch back to "Basic" mode, and register a new
patient, 10 p/s is also correctly displayed here.
Operator Manual
SPR2-310.620.30.02.02