Users Manual Part 1

IBA | 6-10 | Clinical User’s Guide
Volume 1 - Treatment Session
|Part II - Using Treatment Room Equipment Elementary Notions on Patient Positioning |
 User-defined positions are non patient-specific (i.e., they do not depend on the
loaded patient-specific data). These positions may be stored and used across
treatment sessions in the same treatment room. For example, a user-defined
Load position may be used to load patients onto the couch.
Prescribed or user-defined positions may require more than one PPD to be
positioned in a certain way. These positions are computed in advance, so you may
use the hand-pendant or the remote positioning controls to execute Auto motions
that take the different devices to target. Motions of the different devices take place
sequentially. Each device involved in a predefined programmed position needs to be
individually selected and moved to its target position.
The settings of all target positions are displayed according to IEC61217 (refer to
"Supported Coordinate Systems" on page 7-3).
Target Positions in a GTR
This section features a list of the target positions that may be available in the different
types of treatment rooms when using Auto mode.
Note: For further information on how to perform Auto motions using the wireless
hand-pendant, refer to Chapter 9. For further information on how to perform Auto
motions using the remote positioning controls, refer to Chapter 11.
Table 6-1. Target Positions for a GTR
Position
name
Coordinate
system in
which it is
expressed
PPD Settings for target position
Prescribed / Patient-specific
SETUP IEC Gantry
PPS
PBS ded.
snout
Obtained from the patient’s
selected treatment plan.
TREATMENT IEC Gantry
PPS
PBS ded.
snout
Obtained from the patient's
plan, with application of the
correction from the setup
beam.