Oct 17, 2017

The Radiosurgery Society (RSS) and ProKnow are proud to launch two exciting quality studies dedicated to SBRT treatment of lung cancer. These studies, in conjunction with the 2017 RSS Annual Scientific Meeting to be held November 2 - 4, 2017, at the Rio Hotel in Las Vegas, Nevada, are now open and accepting submissions through Tuesday, October 17, 2017.

Submissions are due no later than 6pm central time on October 17, 2017.


A challenging SBRT plan has been designed by the team of clinical experts, where 23 total quality metrics (21 of them scored) will be extracted and formulated into a composite plan quality score using the patented PlanIQ™ method. As always with ProKnow Plan Studies, participants can score and analyze their results interactively and with unlimited attempts to improve the score until the submission deadline.

High performing planners (for each treatment modality and TPS) will be contacted to offer their techniques and best practices, which will be distributed both at the RSS meeting and via ProKnow’s “Learn” tab.

Population results – including direct comparisons of sub-populations such as modality and TPS – will also be released as series of interactive graphical tools on the “Population Results” tab after the RSS presentations.


Four critical organs-at-risk (OAR) have been contoured by the expert team. Participants can use the online ProKnow contouring tools to contour the:

  • Esophagus
  • Large vessels
  • Proximal bronchial tree
  • Trachea

Each participant can get immediate results of their contours vs. the expert contours as a quantified StructSure™ score and Dice coefficient, with interactive color display of regions of agreement and differences.

Population results – including a “heat map” showing regions of agreement across all participants – will be released after the RSS presentation on the “Population Results” tab for each structure.


  1. SIGN IN to ProKnow (www.proknowsystems.com). If you do not yet have a ProKnow account, then create one (it’s free) and sign in.
  2. Once signed in, in the SELECT ORGANIZATION dropdown menu, select “Radiosurgery Society (RSS).”
  3. You can now navigate to the “Plan Studies” main menu and follow the instructions for the plan study, which will guide you on how to download the anatomical data, create and upload your plan and dose, score your plan, and submit your results.

You can also navigate to the “Contour Accuracy” main menu and find the four OARs, and follow the instructions to create and score your contours for each structure.