2017 Dosimetry Plan Study - Lung

The Radiosurgery Society® (RSS) and ProKnow have 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.

Case submission is now closed. We will announce the results and present the top 5 cases on Saturday, November 4, 2017, during the 2017 RSS Scientific Meeting.


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.


As always, ProKnow will announce the high performers, overall and per-TPS and modality. They will also publish interactive case studies and interview high performers, publishing those interviews on the “Learn” tab for the plan study.

The RSS will also be honoring high performers. Those attending the meeting will be acknowledged publicly and may be asked to briefly summarize their techniques.

The RSS will also be giving away raffle prizes. Anybody who participates in the studies, regardless of performance scores, will be eligible.


The following experts worked together to define the plan quality algorithm for the plan study as well as come to consensus contours for the contouring study.

  • Drew Moghanaki, MD, MPH, VCU Massey Cancer Center, Richmond, VA
  • Ben J. Slotman, MD, PhD, Vrije Universiteit Medical Center, Amsterdam, the Netherlands
  • Anand Swaminath, MD, MSc, FRCPC, Juravinski Cancer Centre, Ontario, Canada
  • Brian Wang, PhD, University of Louisville, Louisville, KY
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