Plan Study Program Point Thresholds

Below, find the different thresholds for plan study score in terms of "points" achieved for ProKnow Achievement System (PAS). These will be updated after each plan study is closed and the specific thresholds are derived based on the study participation and population statistics.

2016 AAMD/RSS: SBRT Prostate

Threshold Value Derivation
TH1 129.9 Population mean minus one standard deviation (approx.)
TH2 138.1 Population mean
TH3 142.6 Top 30% in population
Top 20% 143.6 Top 20% in population
Top 10% 145.0 Top 10% in population

2017 QADS: TG244 Head and Neck

Threshold Value Derivation
TH1 117.9 Population mean minus one standard deviation (approx.)
TH2 130.6 Population mean
TH3 139.6 Top 30% in population
Top 20% 141.5 Top 20% in population
Top 10% 143.6 Top 10% in population

2017 TROG: SBRT Spine

Threshold Value Derivation
TH1 130.0 First quality threshold; slightly more lenient than mean minus standard deviation
TH2 140.1 Population mean
TH3 145.2 Top 30% in population
Top 20% 146.3 Top 20% in population
Top 10% 147.0 Top 10% in population

2017 AAMD: Skin Cancer

Threshold Value Derivation
TH1 N/A Contributed a solution to the study.
TH3 18 Solutions meeting all minimum requirements.

2017 Proton: Craniopharyngioma

Threshold Value Derivation
TH1 N/A Contributed to proton plan study
TH3 111 Proton plan meeting all base requirements

2017 RSS: SBRT Lung

Threshold Value Derivation
TH1 104 Accomplishment level 1
TH2 123 Accomplishment level 2 (population mean)
TH3 130 Accomplishment level 3
Top 20% 132.3 Top 20% in population
Top 10% 134.9 Top 10% in population

2018 World Championships

Threshold Value Derivation
TH1 103 Accomplishment level 1
TH2 119 Accomplishment level 2 (population mean)
TH3 130 Accomplishment level 3
Top 20% 132 Top 20% in population
Top 10% 135 Top 10% in population

2018 TROG: SRS Brain

Special Note: A few of the high scoring plans submitted to this study were of questionable practicality, evidenced by potentially unrealistic/high MU and number of treatment beams (IMRT or arc). Remember, the cardinal rule of plan studies is to only submit plans that you would deliver to a real patient. All submitted plans are included in the statistical analysis and population results, but individual high performers (announced at the TROG meeting, and listed elsewhere, on the "News" feed) may have some plans filtered out.

Threshold Value Derivation
TH1 108 Population mean minus one standard deviation
TH2 123 Population mean
TH3 135 Top 30% in population
Top 20% 139 Top 20% in population
Top 10% 142 Top 10% in population

2019 TROG: SBRT Pancreas

Threshold Value Derivation
TH1 123 Population mean minus one standard deviation
TH2 131 Population mean
TH3 137 Top 30% in population
Top 20% 139 Top 20% in population
Top 10% 140.8 Top 10% in population

2019 RSS: SBRT Pancreas

Threshold Value Derivation
TH1 136 Population mean minus one standard deviation (relaxed to next lowest whole number point)
TH2 142 Population mean (relaxed to next lowest half point)
TH3 145 Top 30% in population (relaxed to next lowest half point)
Top 20% 146 Top 20% in population (relaxed to next lowest half point)
Top 10% 146.5 Top 10% in population (relaxed to next lowest half point)
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