Accelerated IMRT and VMAT planning

Transcription

1 Pinnacle 3 Auto-Planning Accelerated IMRT and VMAT planning Philips Pinnacle 3 Auto-Planning specifications Pinnacle 3 Auto-Planning is designed to simplify and accelerate IMRT & VMAT planning. It has smart automation tools that enable the user to generate high quality plans quickly with limited intervention. These plans can then be evaluated against clinical goals using intuitive dashboards, called Scorecards, which provide at-a-glance information on plan quality facilitating consistency of treatments throughout the department.

2 Accelerated IMRT & VMAT planning with consistent results Reduce the total time required to create an IMRT or SmartArc plan Auto-Planning requires 3 simple steps to generate a deliverable plan. Only anatomic contours are required to get started. 1Select Treatment Technique 2Run Auto-Planning 3Evaluate with Scorecard A Treatment Technique is selected from the database and applied to the dataset to create a plan. The plan may ultimately be evaluated by comparing results against clinical goals set in the Scorecards. The Auto-Planning engine runs in the background, allowing other tasks to be performed for other plans. 2

3 1 Treatment SELECT a Treatment Technique Reduce exhaustive manual data entry to just a few clicks Techniques help improve efficiency and standardization by automating exhaustive, repetitive data entry to reduce the plan preparation time. They also influence the quality of the result by steering the Auto-Planning engine to deliver an optimized plan. A sample set of Treatment Techniques is provided with Auto-Planning and users can generate their own library of Treatment Techniques. They contain parameters that are typically entered, or drawn, manually during the IMRT or VMAT planning process. These include ROIs and POIs - including those that will be generated automatically such as PTVs and avoidance structures Isocenter and prescriptions Machine and biological parameters Optimization types (e.g. IMRT or VMAT) Clinical goals These parameters can be edited, and new Treatment Techniques can be created, at any point during the daily planning process. Multiple Treatment Techniques may be created per disease type, physician and more, providing options to select alternative protocols when required. For daily planning the user simply selects and applies a Treatment Technique to start the Auto-Planning process. 3

4 2 The RUN Auto-Planning Enhance plan consistency and quality Auto-Planning engine helps to reduce planning time by generating high quality, clinically acceptable plans on the first pass, independent of the planner, without requiring multiple attempts. Its progressive optimization algorithm allows the optimizer to continue working after meeting clinical goals to maximize target coverage and OAR sparing. It takes the parameters from the selected Treatment Technique and starts the optimization process. It runs in the background and performs warm starts automatically without requiring any user interaction. The progress is displayed with a status bar. Treatment Techniques Multiple IMRT optimizations Add target objectives Add OAR objectives Add hot/cold objectives Create body/avoidance structures, etc. Fine tune each objective and structure Deliverable Plans Fine-tune Optimize Evaluate The Auto-Planning engine creates all the required contours, such as body and avoidance structures, and takes PTV/OAR overlaps into account during the optimization process, obviating the need to do these tasks manually. It can also be used to optimize a trial where beams and prescriptions have been inserted manually. At the end of the process the user is left with a deliverable plan to review and approve which doesn t require further conversions that could lead to degradation of plan quality. The user has the option to make small adjustments to the final plan if necessary. 4

5 3 Simplify EVALUATE with Scorecards and standardize the plan approval process Scorecards simplify and standardize the typically lengthy and inconsistent plan approval process. They provide at-a-glance information on plan quality to evaluate against clinical goals. They facilitate the reduction of physician time required for multiple plan reviews by establishing plan approval criteria within the planning team at the beginning of the process. Each Scorecard contains clinical goals typically used to assess plan quality, including: Dose and DVH-based goals for target and OAR Volume comparison goals The Scorecards can be linked to specific Treatment Techniques, and loaded automatically, ensuring continuity and simplicity between the plan generation and plan evaluation processes. Sample Scorecards, based on RTOG protocols, are provided in the scorecard library as a starting point to help the user develop their own based on departmental protocols. Scorecards are included as part of Pinnacle and don t require the Auto- Planning license so they can be used to evaluate plans of multiple delivery techniques including 3D conformal, IMRT and SmartArc and allow reporting in line with ICRU 83. 5

6 Frequently Asked Questions How quickly can one get started with Auto- Planning? Immediately. There s no need to create a database of plans to start using Auto-Planning. Moreover, it comes with a set of Treatment Techniques and Scorecards which can be used for the very first plan. Auto-Planning be used to plan for multiple disease sites and/or multiple targets. Is it possible to create a Treatment Technique from existing protocols? Yes. This step is simplified with the use of Create Technique from Current Trial feature. How robust is the Treatment Technique? The Treatment Technique is very robust. The same Technique can be used for IMRT and VMAT deliveries and will also generate high quality plans irrespective of the differences between patients in target and OAR geometry. Is it easy to update a Treatment Technique? Yes. New clinical goals can be added easily to take into account new OARs. Can Auto-Planning be used for SBRT and FFF treatments? Yes. How many plans does Auto-Planning create? Auto-Planning creates a single plan based on the clinical goals defined by the user. The user is free to make changes to the auto-generated plan and compare the results of alternative solutions. How long does it take to create a plan? Typical Auto-Planning planning times are between 10 minutes and 1 hour. The time taken depends on several factors such as plan complexity, number of CT slices, dose grid selection, hardware and system resources that are being utilized. During in-house testing a clinically acceptable 9-field Head & Neck DMPO plan was created in approximately 10 minutes as a background task; a complex Pelvic SmartArc plan was created in 1 hour. Pinnacle 3 Professional X3-2 platform with Pinnacle was used for both. Can Auto-Planning be used to create plans for multiple patients simultaneously? Yes. However, calculation times might be impacted by system capacity. Does Auto-Planning require repeated user interaction? No. User interaction is not required during the Auto-Planning process as it runs in the background. To maintain plan integrity the user cannot work on the same patient dataset while Auto-Planning is running. However they are free to work on other plans in the meantime. 6

7 Frequently Asked Questions (continued) Does Auto-Planning optimize the DVH or dose distribution? Auto-Planning optimizes both. What other major feature is available in Pinnacle besides Auto-Planning? The major feature being introduced in Pinnacle is the Scorecard. It is designed to simplify and standardize plan evaluation for multiple delivery techniques, e.g. 3D Conformal, IMRT & SmartArc. Plan evaluation, like contouring, is considered by many a lengthy and inconsistent process. The Scorecard feature addresses both of these issues. What s the difference between a Treatment Technique and a Scorecard? A Treatment Technique is used to generate the plan. The Scorecard is used to evaluate the plan. Furthermore, Treatment Techniques are used to generate IMRT/DMPO & SmartArc plans only while the Scorecard can be used to evaluate multiple plan types including 3D conformal (i.e. non IMRT/SmartArc). Can a Scorecard be linked to a Treatment Technique? Yes. It is possible to pre-select a specific Scorecard that will be opened once Auto-Planning has generated a plan using a particular Treatment Technique What versions/ licenses are required for Auto- Planning? Pinnacle (or higher) with 3D Dose, IMRT & DMPO are required to run Auto-Planning. SmartArc & Biology licenses are optional. Hardware compatibility Pinnacle 3 Auto-Planning is a purchasable option of Pinnacle , and will run on Intel-based platforms (sever and client) as shown in the table to the right. Pinnacle is not compatible with SPARC-based servers or clients, and should not be installed on Pinnacle 3 servers that support mixed networks of SPARC-based (i.e. SB2500 and earlier) and Intel-based (i.e. 810 and later) workstation clients. Hardware compatibility Platform Compatible 810, 810X 4 Blade Professional 4 Expert 4 SmartEnterprise 4 V250, SB2500, and other SPARC-based servers and clients All SPARC-based workstations must be removed from the Pinnacle 3 network 7

8 2014 Koninklijke Philips N.V. All rights are reserved. Philips Healthcare reserves the right to make changes in specifications and/or to discontinue any product at any time without notice or obligation and will not be liable for any consequences resulting from the use of this publication. Please visit pinnacle-autoplanning Printed in The Netherlands * Dec 2014