G4DicomReader/src/DicomFilePET.cc

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 #include "DicomFilePET.hh"
0027
0028 #include "DicomFileStructure.hh"
0029 #include "DicomROI.hh"
0030 #include "dcmtk/dcmdata/dcdeftag.h"
0031 #include "dcmtk/dcmdata/dcfilefo.h"
0032 #include "dcmtk/dcmdata/dcpixel.h"
0033 #include "dcmtk/dcmdata/dcpixseq.h"
0034 #include "dcmtk/dcmdata/dcpxitem.h"
0035 #include "dcmtk/dcmrt/drtimage.h"
0036
0037 #include "G4GeometryTolerance.hh"
0038
0039 #include <set>
0040
0041 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0042 DicomFilePET::DicomFilePET() {}
0043
0044 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0045 DicomFilePET::DicomFilePET(DcmDataset* dset) : DicomVFileImage(dset) {}
0046
0047 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0048 void DicomFilePET::BuildActivities()
0049 {
0050   G4int fCompress = theFileMgr->GetCompression();
0051   if (fNoVoxelsX % fCompress != 0 || fNoVoxelsY % fCompress != 0) {
0052     G4Exception("DicompFileMgr.:BuildMaterials", "DFC004", FatalException,
0053                 ("Compression factor = " + std::to_string(fCompress)
0054                  + " has to be a divisor of Number of voxels X = " + std::to_string(fNoVoxelsX)
0055                  + " and Y " + std::to_string(fNoVoxelsY))
0056                   .c_str());
0057   }
0058
0059   //  if( DicomVerb(debugVerb) ) G4cout << " BuildMaterials " << fFileName << G4endl;
0060   double meanHV = 0.;
0061   for (int ir = 0; ir < fNoVoxelsY; ir += fCompress) {
0062     for (int ic = 0; ic < fNoVoxelsX; ic += fCompress) {
0063       meanHV = 0.;
0064       int isumrMax = std::min(ir + fCompress, fNoVoxelsY);
0065       int isumcMax = std::min(ic + fCompress, fNoVoxelsX);
0066       for (int isumr = ir; isumr < isumrMax; isumr++) {
0067         for (int isumc = ic; isumc < isumcMax; isumc++) {
0068           meanHV += fHounsfieldV[isumc + isumr * fNoVoxelsX];
0069         }
0070       }
0071       meanHV /= (isumrMax - ir) * (isumcMax - ic);
0072       fActivities.push_back(meanHV);
0073     }
0074   }
0075 }
0076
0077 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0078 void DicomFilePET::DumpActivitiesToTextFile(std::ofstream& fout)
0079 {
0080   G4int fCompress = theFileMgr->GetCompression();
0081   if (DicomFileMgr::verbose >= warningVerb)
0082     G4cout << fLocation << " DumpDensitiesToTextFile " << fFileName << " " << fActivities.size()
0083            << G4endl;
0084
0085   G4int copyNo = 0;
0086   for (int ir = 0; ir < fNoVoxelsY / fCompress; ir++) {
0087     for (int ic = 0; ic < fNoVoxelsX / fCompress; ic++) {
0088       fout << fActivities[ic + ir * fNoVoxelsX / fCompress];
0089       if (ic != fNoVoxelsX / fCompress - 1) fout << " ";
0090       if (copyNo % 8 == 7) fout << G4endl;
0091       copyNo++;
0092     }
0093     if (copyNo % 8 != 0) fout << G4endl;
0094   }
0095 }