+ * \warning Dicom *doesn't* define any name for any 'categorie'
+ * (the dictionnary fourth field was formerly NIH defined
+ * - and no longer he is-
+ * and will be removed when Dicom provides us a text file
+ * with the 'official' Dictionnary, that would be more friendly
+ * than asking us to perform a line by line check od thhe dictionnary
+ * at the beginning of each year to -try to- guess the changes)
+ * Therefore : please NEVER use that fourth field :-(
+ *