2020 AAMD Plan Study

Categories Plan StudiesPosted on

Recap, Review, and High Performers


The 2020 AAMD Plan Study was a great success! The meeting was virtual this year, so the cloud-based ProKnow software fit perfectly well and allowed international participation. Over 300 people registered, and over 140 submitted valid, composite plans in the allotted time.

This year’s clinical planning and presentation team was led by dosimetrists Chavanon Apinorasethkul, CMD, and Kalin Shipman, CMD. They provided the anonymized planning images and anatomical structure set. They also led the design of the metrics and plan scorecard, which featured a total of 24 metrics studied (20 of which were scored; 4 others collected for added analysis) for a total of 150 points.

The featured plan was a base of skull chordoma. Participants were to design and submit a sequential plan prescribed to a total of 77.4 Gy and made up of two fraction groups: 54 Gy in 30 fractions followed by 23.4 Gy in 13 fractions. Participants used a dedicated ProKnow domain (https://aamd.proknow.com), where they could upload their plan(s) and dose(s), sum them to create a composite plan (if necessary), render their scorecard, and iterate until they were happy with their performance. Scores were kept blind (i.e., participants could only see their own plan and score) up until the AAMD presentation which took place on July 6, 2020. (Note: Visit the AAMD website to get access to their presentation.)

The scorecard’s metrics and objectives were based on current clinical goals for this type of treatment without extra challenges for target coverage objectives or ALARA scoring for organs-at-risk. As a result, an impressive number of participants met every highest objective over all metrics to achieve perfect scores of 150 out of 150.

A list of “High Performers” was defined as any/all users who scored in one of the “top three bins” in terms of overall plan score histogram (in this case, that means a score greater than 137.50 out of 150). Please see the “High Performers Summary” section, below.

Interactive Review

We used a dedicated ProKnow “big data” repository and analytics domain for this study rather than the conventional Plan Study quality system technology. This offers some nice advantages:

  • Participants were able to sum their dose grids here to get their composite plan/score, when applicable.
  • This domain allows retrospective analysis and interactive visualization of each and every anonymized submission.
  • This domain also allows full navigation of population scorecards, histograms/variation per metric, and scatterplots/correlation for any pair of the derived or numeric custom metrics.

To study and analyze the results yourself, simply sign in to the domain, then use the many population analysis tools and of course the plan-by-plan analysis tools. The domain has been set to “read-only” mode, so you will not be able to edit contours, metrics, or scorecards, or upload any new data, but you can survey the plan submissions one-by-one or as a population.

Note: If you did not participate but would like to inspect and navigate the plans, doses, DVHs, scorecards, and population results, you can submit a request to Elekta/ProKnow team members at support@proknowsystems.com.

Figure 1. This is a histogram of the composite scores for the final valid, submitted plans. You can separate these by modality, TPS, or radiation type. You can also click on any bin to see all the plans whose metric fell in that bin. This goes for any derived or custom metric.

Figure 2. Here is a snapshot of the plan scorecard extracted across the whole population of submitted plans. The variation of each metric’s result is shown as a box plot atop the scoring objectives. Any row can be selected (double-clicked) for drill-down analysis of the underlying data.

Figure 3. Condensed boxplot view of all plan scores filtered by modality.

High Performers Summary

Congratulations to all participants, and especially to the following individuals who scored in one of the top performance bins of this plan study.

Table 1. The following users scored in the “top three bins” in terms of total plan score. For the cohort of users who scored 150, the order in the table is set simply by alphabetical order based on first name.

Score Name Institution Country Modality TPS
150.00 Alberto Adrada Clinica de occidente Colombia VMAT Eclipse
150.00 Chun Long Lee St. Teresa’s Hopsital Hong Kong VMAT Eclipse
150.00 Dalibor Lojko Nemocnica Komarno Slovakia IMRT (Dynamic) Eclipse
150.00 Daniel Sullivan Grand Valley State USA VMAT Eclipse
150.00 David Littlejohn Varian Medical Systems USA VMAT Eclipse
150.00 David Stewart Prince of Wales Hospital Australia VMAT RayStation
150.00 Drew Granatowicz Nebraska Medicine USA VMAT Eclipse
150.00 Friedemann Herberth Kantonsspital St.Gallen Switzerland VMAT Eclipse
150.00 Gary Ka Yu Tso St. Teresa’s Hospital Hong Kong VMAT Eclipse
150.00 Igor Prokofev European medical center Moscow VMAT Eclipse
150.00 James Henry Willis Knighton Cancer Center USA VMAT RayStation
150.00 Julien Rolland Institut Paoli Calmettes & CHICAS France VMAT RayStation
150.00 Li Kai Leung St Teresa’s Hospital Hong Kong VMAT Eclipse
150.00 Luke Mackowiak Mountain States Medical Physics USA VMAT Eclipse
150.00 Madison Newkirk University of Arkansas USA VMAT Eclipse
150.00 Mark Arends RIF The Netherlands VMAT RayStation
150.00 Megan Rodrigues Willis-Knighton USA VMAT RayStation
150.00 Nicolas Depauw Massachusetts General Hospital USA Protons Astroid
150.00 Perumal Murugan Sri Shankara Cancer Hospital India VMAT Eclipse
150.00 Peter Treon Rhode Island Hospital USA VMAT RayStation
150.00 Richard Shores Prisma Health – GHS USA VMAT Eclipse
150.00 Scott Senick Varian Medical Systems USA VMAT Eclipse
150.00 Simon Heinze Kantonsspital St.Gallen Switzerland VMAT Eclipse
150.00 Siva Kumar Sri Shankara Cancer Hospital India VMAT Eclipse
150.00 Thomas Costantino, Frank Simac, Bruce Phillip 21st Century Oncology USA IMRT (Dynamic) Eclipse
150.00 Yik Shing Cheung Hong King St. Teresa Hospital Hong Kong VMAT Eclipse
149.97 Irina Fotina IBA Dosimetry Germany VMAT Monaco
149.97 Xuanfeng Ding Beaumont Proton Therapy Center USA Protons RayStation
149.88 Sut I Chim St. Teresa Hospital Hong Kong VMAT Eclipse
149.84 Gajendran N Regency Hospital Ltd India VMAT Eclipse
149.78 Tomas Prochazka Masaryk Memorial Cancer Institute Czech Republic VMAT Eclipse
149.75 Michael Mast Community Howard Regional Health USA VMAT Eclipse
149.69 Kazuyuki Uehara Kobe Minimally Invasive Cancer Center Japan VMAT Eclipse
149.62 Matthew Thomas Emory Healthcare USA VMAT Eclipse
149.27 Mahmoud Al Fishawy International Medical Center Egypt VMAT Eclipse
149.04 Alejandro Rincones Instituto del Cancer SOLCA Cuenca Ecuador VMAT Eclipse
148.83 Murali Govindaraj Kailash Cancer Hospital India VMAT Eclipse
148.76 Kirby DeLozier Moffitt Cancer Center USA VMAT Pinnacle
148.39 Juan Perez Quironsalud Protontherapy Center Spain Protons RayStation
148.37 Justin Miller Moffitt Cancer Center USA VMAT Pinnacle
148.16 Raymond Dalfsen Elekta Australia Protons Monaco
148.02 Warwick Mok HKSH Hong Kong Helical Arc TomoTherapy
147.78 Aurelie Sors Oncorad Garonne montauban France VMAT Eclipse
147.54 Mark Bowers Moffitt Cancer Center USA VMAT Pinnacle
147.47 Jessica Caselli Northside Hospital USA VMAT Eclipse
147.32 Christopher Amaloo Conehealth Cancer Center USA VMAT Eclipse
147.32 Lev Haim Assuta ashdod hospital Israel VMAT Eclipse
146.79 Timothy Hancock Kantonsspital Aarau Switzerland VMAT Eclipse
146.73 Hisato Nagano Shonan Fujisawa Tokushukai Hp. Japan VMAT RayStation
146.62 Lai mun Yap Beacon hospital Malaysia VMAT Eclipse
145.99 Paolo Ferrari Azienda Sanitaria dell’Alto Adige – Bolzano Italia VMAT RayStation
145.86 Barry Melancon Ochsner Health USA VMAT Eclipse
145.80 Tyler Williamson MD Anderson Proton Therapy Center USA VMAT RayStation
145.65 Brian Neal ProCure USA Protons RayStation
145.28 C P Bhatt Sarvoday Hospital Faridabad Inida India VMAT Monaco
145.06 Junaid Khan Varian Canada VMAT Eclipse
144.94 Bruce Ha Peter MacCallum Cancer CEentre Australia VMAT Eclipse
143.98 Kevin Greco Moffitt Cancer Center USA VMAT RayStation
143.69 Vanessa Magliari Varian USA VMAT Eclipse
143.31 Laertes Papaspyrou Philips Healthcare Greece Protons Pinnacle
142.67 Eugene Holdman Alexandrov National Cancer Center Belarus IMRT (Dynamic) Eclipse
142.06 Sergei Rusetckii LLC Medscan Russia VMAT Eclipse
142.05 Philip Bowen Agnesian Cancer Center/SSM USA VMAT Pinnacle
140.90 Rick Scherer Elekta USA VMAT Monaco
140.82 Bradley Dubois Goshen Center For Cancer Care USA VMAT Eclipse
140.77 Morgan Griffin Hartford Healthcare USA VMAT Eclipse
140.44 Kadishe Balazi OSF Saint Francis Medical Center USA VMAT Eclipse
140.06 Sarah Johnson Cincinnati Childrens/UC Health Proton Center USA Protons Eclipse
139.72 Chung Yin Mak St Teresa’s hospital Hong Kong VMAT Eclipse
139.39 Matev Mleku Institute of Oncology Ljubljana Slovenia VMAT Monaco
139.34 Helena Allon Assuta Israel VMAT Eclipse
139.25 Nadine Hong Austin Health Australia VMAT Monaco
139.09 Ellen Kurdzo Hartford Hospital USA VMAT Eclipse
138.63 Luis Fernando Paredes Ocampo Clinica de Occidente Colombia VMAT Eclipse
138.57 Pedro Borges Elekta Brazil VMAT Monaco
138.49 Ashley Chackalayil Northside Hospital USA VMAT Eclipse
138.06 Maia Topeshashvili Research Institute of Clinical Medicine Georgia VMAT Eclipse
138.02 Zhanjia Hou LMP USA VMAT Eclipse