Erreur ouverture DCM DCMTK

Bonjour,
Je cherche pour un projet à charger un examen composé de plusieurs fichiers DCM. J'utilise la bibliothèque DCMTK.
Voici ma fonction :

Code:

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Examen*
ParserDicom::loadFile(string dirName)
{
    // Open directory
    DIR* dir = opendir(dirName.c_str());
    if (dir == NULL) {
        return NULL;
    }
 
    // Get examen informations
    ExamenParams* params = getInfos(dir, dirName);
    if (params == NULL) {
        return NULL;
    }
 
    // Create struct examen
    Volume* img = new Volume(params->width, params->height, params->depth);
    Examen* exam = new Examen(img, params);
 
    // Read data
    int index = 0;
    struct dirent* file;
    rewinddir(dir);
    string pathDirectory = dirName + PATH_SEPARATOR;
    int tabSize = params->width * params->height;
    float tab[tabSize];
    while ((file = readdir(dir)) != NULL) {
        if (strcmp(file->d_name, ".") != 0 &&
                strcmp(file->d_name, "..") != 0) {
            string fullpath = pathDirectory + file->d_name;
            DcmFileFormat dcm;
            OFCondition cond = dcm.loadFile(fullpath.c_str());
            if (cond.bad()) {
                delete img;
                delete params;
                return NULL;
            }
            DiDocument* didoc = new DiDocument(fullpath.c_str());
            DiMono2Image* dimg = new DiMono2Image(didoc, EIS_Normal);
            OFString s;
            dcm.getDataset()->findAndGetOFString(DCM_BitsStored, s);
            int bitsStored = atoi(s.c_str());
 
            short* slice = (short*) dimg->getOutputData(0, bitsStored, 0);
            for(int i=0; i<tabSize; ++i) {
                tab[i] = (float) slice[i];
            }
            img->setSlice(tab, index++);
            delete dimg;
            delete didoc;
        }
    }
    closedir(dir);
    return exam;
}

A la compilation j'obtiens ces erreurs :

Citation:

E: can't change to unencapsulated representation for pixel data
E: can't determine 'PhotometricInterpretation' of decompressed image
E: can't convert input pixel data, probably unsupported compression

Quelqu'un aurait une idéé?
Merci :D