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--- planning:userguide:tutorials:snapshots [2017/10/12 15:09] – [About Patient Models] dpatenaude
+++ planning:userguide:tutorials:snapshots [2021/07/29 18:28] (current) – external edit 127.0.0.1
@@ Line 24: / Line 24: @@
 ==== Course Level Structures ====
-Course level structures are not predefined templated structures (Site Level Structures). Course level structures may have certain properties edited within the planning user interface (e.g.: their type). A structure may be assigned as a Course level structure by choosing the box "New Course Structure" option at the time of import for any structure that does not automatically match a Site Level Structure. {{ :planning:userguide:tutorials:course_level_change.png |}} Structures that have been changed to Course level will have be designated as such by the word "course" appearing in parentheses beside the structure name during import. This is useful when a structure was misnamed during the contouring process. Course level structures that have been designated as Target structures can also be used for prescriptions. Ant structure with TV as part of its name will automatically be designated as a Course Level structure.
+Course level structures are not predefined templated structures (Site Level Structures). Course level structures may have certain properties edited within the planning user interface (e.g.: their type). A structure may be assigned as a Course level structure by choosing the box "New Course Structure" option at the time of import for any structure that does not automatically match a Site Level Structure. {{ :planning:userguide:tutorials:course_level_change.png |}} Structures that have been changed to Course level will have be designated as such by the word "course" appearing in parentheses beside the structure name during import. This is useful when a structure was misnamed during the contouring process. Course level structures that have been designated as Target structures can also be used for prescriptions. Any structure with TV as part of its name will automatically be designated as a Course Level structure.
 ==== Custom Structures ====
@@ Line 34: / Line 34: @@
 Plan level structures are structures created with the Astroid TPS. These structures are derived from existing structures (e.g.: expansions, combinations). See [[planning:userguide:tutorials:patient_geometry|Patient Geometry]] on how these are created.
-==== Structure Types When Used in Plan Constraints and Objectives ====
+==== Structure Types When Used in Optimization Constraints and Objectives ====
-See [[planning:userguide:tutorials:optimization_constraints|Optimization Constraints]] and [[planning:userguide:tutorials:optimization_objectives|Optimization Objectives]] for definitions of Constraints and Objectives.
+The structures type determines the options available to the user when specifying constraints and objectives for the treatment plan optimization (refer to [[planning:userguide:tutorials:optimization_constraints|Optimization Constraints]] and [[planning:userguide:tutorials:optimization_objectives|Optimization Objectives]] for definitions of Constraints and Objectives). Below explains the structure types and options available for each type during optimization:
-When the user is setting up their Constraints only on Targets will they have the ability to set minimum doses to be achieved for the minimum dose and the minimum mean dose. The user can also set the maximum dose they want to be achieved along with the maximum mean dose. {{ :planning:userguide:tutorials:structure_target_constraint.png |}}
+=== Non-Target Structures ===
-For all other structure types the user will only have the ability to set the maximum dose to be achieved along with the maximum mean dose. {{ :planning:userguide:tutorials:structure_other_constraint.png |}}
+For structure types that are not //Target// or //Other// the user only has the ability to set constraints and objectives that drive the dose **downward**.
-Similarly when setting the Objectives the user can set objectives to both minimize and maximize the doses on Targets. {{ :planning:userguide:tutorials:structure_target_objectives.png |}}
+  * **Constraints**: only maximum and maximum mean dose settings can be added to the structure. {{ :planning:userguide:tutorials:structure_other_constraint.png |}}
+  * **Objectives**: only minimizing objectives (minimize the maximum, minimize the mean, and minimize the overdose) can be added to the structure. {{ :planning:userguide:tutorials:structure_non_target_objectives.png |}}
-However on Non-Targets the user can only set objectives that will drive the dose down to these structures. {{ :planning:userguide:tutorials:structure_non_target_objectives.png |}}
+=== Target and Other Structures ===
+For structure types that are //Targets// and //Other// the user has the ability to set constraints and objectives that drive the dose **upward** and **downward**.
+  * **Constraints**: Both maximum and minimum dose and mean dose constraints can be added to the structure. {{ :planning:userguide:tutorials:structure_target_constraint.png |}}
+  * **Objectives**: Both minimizing and maximizing dose objectives cab be added to the structure. {{ :planning:userguide:tutorials:structure_target_objectives.png |}}
 ===== Working with Patient Models =====