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Siemens ARCADIS Varic Operator's Manual

Siemens ARCADIS Varic
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System Description
ARCADIS Varic
SPR2-310.620.30.02.02 23
of 44
Selecting the operating mode 0
You can select the following operating modes for the ARCADIS Varic:
Fluoroscopy For fluoroscopy (CFC) you can choose between several exam sets with different
characteristic curves to determine exposure parameters for fluoroscopy. Every
application allows to choose between different optimized programs. The stan-
dard setting of the ARCADIS Varic after startup is the basic setting configured for
the body region "All", which is typically Continuous fluoroscopy ( Register 8:
Configuration, Page 5).
Exposure factors and system control units including the way in which the auto-
matic setting is controlled:
1 K
2
matrix; 30 f/s frame rate; image integration (as a function of the K factor
set), i.e. a number of K exposures are integrated into one image by sliding
averaging; the K factor can be selected between K = 1 ("OFF" setting) and
K = 32 and can be assigned to an exam set and stored.
Typical clinical procedure:
Fracture reposition of the distal upper extremity (e.g. distal forearm fracture)
in the plaster room of an emergency outpatient clinic where, under continuous
fluoroscopy, the fracture elements are reduced by extension, fixed temporari-
ly in the best possible position and then fixed permanently by applying a plas-
ter cast.
Pulsed fluoroscopy This operating mode (frame rates up to 15 f/s) allows a reduction in the radiation
dose of up to 70% for the patient and operator. The pulse duration is generally
7 milliseconds. According to the level of noise reduction, many different fluoro-
scopic images can be integrated. For frame rates less than or equaling 2 frames
per second, a type of intermittent continuous fluoroscopy is used where the
pulse duration varies depending on the noise reduction set.
Exposure factors and system control units including the way in which the auto-
matic setting is controlled:
1 K
2
matrix; typical frame rate 4-15 f/s; image integration (as a function of the
K factor set), i.e. a number of K exposures are integrated into one image by
sliding averaging; the K factor can be selected between K = 1 ("OFF" setting)
and K = 8 and can be assigned to an exam set and stored.

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Siemens ARCADIS Varic Specifications

General IconGeneral
TypeMobile C-arm
Image Intensifier9-inch or 12-inch
DICOM CompatibilityYes
Frame RateUp to 30 fps
Focal Spot Size0.3/0.6 mm
MonitorDual 18-inch TFT LCD monitors

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