// Evaluate covered dose at Volume.
private string EvaluateCoveredDoseAtVolume(Structure evalStructure, PlanningItem plan, ref List <string> warnings)
{
// Covered Dose at Volume DCxcc is equivalent to D(V_tot - x)cc
double Vtot = evalStructure.Volume;
double doseEvalPt = (DVHUnit.CompareTo("cc") == 0) ? Vtot - double.Parse(DVHEvalPt) : 100 - double.Parse(DVHEvalPt);
StructureObjective tmp = new StructureObjective()
{
DVHUnit = DVHUnit,
DVHEvalPt = string.Format("{0:0.00}", doseEvalPt),
DVHEvalUnit = DVHEvalUnit
};
return(tmp.EvaluateDoseAtVolume(evalStructure, plan, ref warnings));
}
// Evaluate conformality index.
private string EvaluateConformalityIndex(Structure evalStructure, PlanningItem plan, ref List <string> warnings)
{
// Conformality index = (Volume of Isodose line) / (Volume of Target)
string achieved = "";
// Find body contour. Search first for DicomType == "Body", then DicomType == "External"
StructureSet ss = plan.StructureSet;
Structure body = (from s in ss.Structures
where s.DicomType.ToUpper().CompareTo("Body".ToUpper()) == 0
select s).FirstOrDefault();
if ((body == null) || (body.IsEmpty))
{
body = (from s in ss.Structures
where s.DicomType.ToUpper().CompareTo("External".ToUpper()) == 0
select s).FirstOrDefault();
}
if ((body == null) || (body.IsEmpty))
{
warnings.Add("Body not defined or not found.");
return(achieved);
}
// Create a temporary StructureObjective object to evaluate the volume at dose in the body
double V_target = evalStructure.Volume;
StructureObjective tmp = new StructureObjective()
{
DVHUnit = DVHUnit,
DVHEvalPt = DVHEvalPt,
DVHEvalUnit = "cc"
};
string V_isodose = tmp.EvaluateVolumeAtDose(body, plan, ref warnings);
if (string.IsNullOrEmpty(V_isodose))
{
return(V_isodose);
}
double V_isodose_double = double.Parse(Regex.Match(V_isodose, @"^\d*\.?\d*").ToString());
double achievedDouble = V_isodose_double / V_target;
achieved = string.Format("{0:0.00}", achievedDouble);
return(achieved);
}
// Evaluate covered volume at dose.
private string EvaluateCoveredVolumeAtDose(Structure evalStructure, PlanningItem plan, ref List <string> warnings)
{
// Covered Volume at Dose DVxGy is equivalent to V_tot - VxGy
double Vtot = evalStructure.Volume;
StructureObjective tmp = new StructureObjective()
{
DVHUnit = DVHUnit,
DVHEvalPt = DVHEvalPt,
DVHEvalUnit = DVHEvalUnit
};
string achieved = tmp.EvaluateVolumeAtDose(evalStructure, plan, ref warnings);
if (string.IsNullOrEmpty(achieved))
{
return(achieved);
}
double achievedDouble = double.Parse(Regex.Match(achieved, @"^\d*\.?\d*").ToString());
achievedDouble = (DVHEvalUnit.CompareTo("cc") == 0) ? Vtot - achievedDouble : 100 - achievedDouble;
achieved = string.Format("{0:0.00} {1}", achievedDouble, DVHEvalUnit);
return(achieved);
}