// If 'SOP Class UID' and 'SOP Instance UID' exist ('true DICOM' image)
// we create the 'Source Image Sequence' SeqEntry
// to hold informations about the Source Image
// If 'SOP Class UID' and 'SOP Instance UID' exist ('true DICOM' image)
// we create the 'Source Image Sequence' SeqEntry
// to hold informations about the Source Image