om 5184516-100 Rev. 5 D-1
APPENDIX D
MODES OF OPERATION
The P500D has 4 operating modes:
• Fluoroscopy
• Pulsed Fluoroscopy
• Digital Subtraction Angiography (DSA)
• Radiography
The availability of a given mode depends on the selected protocol that is to be
performed. That is, not all protocols have all modes available.
Protocols that require the acquisition of both Fluoro and Radiography images are
divided into worksteps that determine the tube and mode to be used for each
stage of the exam. The selection of each workstep automatically switches system
to use the correct tube and mode.
The following sections describe each mode.
SECTION 1
FLUOROSCOPY MODE
1-1 Description
Fluoroscopy is an imaging technique commonly used by physicians to obtain real-
time images of the internal structures of a patient through the use of a fluoro-
scope.
1-2 System controlled technique factors
• Fixed or Automatically Selected Technique Factors: The AutoEx feature auto-
matically adjusts focal spot, dose rate and spectral filter to maintain constant
brightness for a given patient thickness.
• How automatic adjustment is controlled: Controlled by an exposure “trajec-
tory” calculated by the system per patient, per body part.
1-3 How to engage/ disengage
Fluoroscopy mode is engaged by selecting “Digital” on the IDD or IUI interface
screen.
Press ‘Digital’ on the IDD to select digital mode of operation. If pulsed fluoro
option is available, pressing will toggle between fluoro modes. Selecting Digital
de-activates the other mode elections.
IDD IUI
FOR TRAINING PURPOSES ONLY!
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