Plan Study Metric Library

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 receiving specified dose)/(volume of specified ROI)
  • 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
Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request

Comments

0 comments

Article is closed for comments.