Eclipse General
What are the two main new features for Eclipse 15.6?
1. Treatment Planning Support for Halcyon v2.0
2. Fast MCO Hybrid VMAT
What is the old name of Halcyon Planning System?
RDS (Ring Delivery System)
What are the 6 new features in Halcyon v2.0 planning?
Long Fields
Dynamic Beam Flattening
kVCBCT imaging support
Delta Couch Shift one step setup
AAA enhancements (Tongue and Groove)
Machine change capability
What is the maximum size of length that can be treated on Halcyon v2.0?
Ans: 36cm
True or False
Plan templates and Clinical Protocols do not support Multi-isocenter plans. This will be supported in the next version of Eclipse.
False
True or False
Eclipse 15.6 gives you the ability to edit Structure codes for all structures in a structure set at once. You do this in the properties>summary>structure code of a structure set.
True
What energy options are available for Halcyon?
6X FFF
one pre-configured model only
True or False
You can edit the size of the Halcyon kV CBCT image in the planning system
False
True or False
The maximum separation of the treatment isocenters is 4cm for Halcyon Long fields in the longitudinal direction
False
The maximum separation between treatment isocenters is 8cm
True or False
It is now possible to create 3D plans for the Halcyon Machine v2.0
True
By using Dynamically Flattened Beams
Where are the buttons to quickly change the lay out from 3D to BEV located?
In External Beam Planning> Model View
What 6 treatment delivery techniques does Halcyon v2.0 support?
1. VMAT
2. IMRT
3. FIF
4. Irregular Surface Compensator
5. Dynamically Flattened Beams
6. Extended Fields
What is the maximum number of treatment isocenters allowed for a long treatment field on Halcyon v2.0?
Two
Eclipse now has the ability to limit leaf movement in the X direction for Halcyon VMAT fields.
Where do I set these limits?
Plan Information drawer of the PO
Can Halcyon plans be created/edited in Plan Parameters?
No
All plans must have dose calculated for approval.
Only non dosimetric edits can be made such as
Field, ID, Name, Tolerance, SSD
What change was implemented in the Arc Geometry Tool?
Arc Geometry Tool now supports Halcyon Multi-isocenter plans
How is the field size defined in Halcyon and what is it?
Defined by the MLCs (No jaws)
28 x 28 fixed Field Size
The New SX2 MLC effectively gives you a leaf resolution of:
0.5cm
True or False
If delta shifts have been calculated in Eclipse, they can be applied on the Halcyon v2.0 machine in one step setup selecting the Load button on the machine. Ensure that the shifts are not also being applied manually as for Halcyon v1.0
True
Where is time entered in the Eclipse and RTM Workspaces?
Nowhere: it is computed at the treat unit.
It is not entered as part of the field parameters at all.
What does the Fast MCO Hybrid VMAT feature do and how does it work?
1. Makes plan generation with MCO for VMAT planning faster
2. Converts the VMAT plan into surrogate IMRT plans that are used for plan generation in MCO trade off exploration
A. Describe three things about the Halcyon MLC configuration.
B. What is the proximal layer closer to?
1. 2 sets of multilayered 1cm leaves
offset from each other by 0.5 cm
2. MLCs rotate (Primary Collimator does not)
3. MLC leaves travel the full extent of the field (no carriage split)
B. Closer to the source
What MLC layer is used to flatten the Halcyon v2.0 beam?
Proximal layer
Tell me three things about imaging fields for Halcyon
1. Automatically created when adding new plans
2. MV image dose is included in optimization/ calculation
3. MV dose accumulation is automatically accounted for with imaging
With Eclipse 15.6 and Halcyon v2.0, you can now convert the following:
Convert Halcyon to a non-Halcyon machine with 120MLC or HDMLC or vice versa