The following metrics are available for ProKnow plan studies. Metrics are extracted, and then the result assessed against a score function, i.e. objectives, which will result in a numeric score. A composite plan score is the sum over all metric’s weighted scores. Metrics can also be extracted and tracked but not scored.
- Dose (Gy) covering specified volume (%) of ROI
- Dose (Gy) covering specified volume (cc) of ROI
- Dose (Gy) covering whole ROI minus specified volume (cc)
- Volume (%) of ROI covered by specified dose (Gy)
- Volume (cc) of ROI covered by specified dose (Gy)
- Volume (%) of ROI covered by a specified dose range (Gy)
- Volume (cc) of ROI covered by a specified dose range (Gy)
- Total ROI volume (cc)
- Min ROI dose (Gy)
- Mean ROI dose (Gy)
- Max ROI dose (Gy)
- Integral ROI dose (Gy · cc)
- Global max dose (Gy)
Max dose value over the whole dose grid - Structure(s) containing global max point
Allows assurance that global max point is in target(s) - Serial slice evaluation
Determines if any axial slices of ROI have min dose > threshold dose - Conformation Number
(Specified ROI volume-at-dose)2/(vol ROI · total irradiated volume-at-dose) - Conformality Index
(Volume ≥ specified dose)/(volume of specified ROI) - Dose Spillage
(Volume ≥ specified dose level) / (Volume of specified target ≥ specified dose level) - Gradient Index
(Volume ≥ lower dose level) / (Volume ≥ higher dose level) - Modified Gradient Index
(Volume ≥ lower dose level) / (Volume of specified target ≥ higher dose level) - Homogeneity Index
(Specified ROI D01% – D99%)/(prescription dose) - Inhomogeneity Index
(Max ROI dose – min ROI dose)/(mean ROI dose) - Volume of Regret
Volume (cc) receiving specified dose but outside specified ROI - Irradiated Volume
Total volume (cc) receiving specified dose over whole grid - Cumulative meterset
(MU or min) over all treatment beams
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