Update README.md

README.md

@@ -92,6 +92,7 @@ Each data instance (male/train/001.gz for example) contains the following:
 ```
 {
   'gender': str ['male', 'female'],
+  'subject_ID': str
   'mri_seg': numpy.ndarray (192, 256, 110),
   'mri_labels': dict {'NO': 0, 'LT': 1, 'AT': 2, 'VAT': 3, 'BONE': 4},
   'mri_seg_dict': dict dict_keys(['LT', 'AT', 'VAT', 'BODY', 'BONE', 'NO']),
@@ -104,6 +105,7 @@ Each data instance (male/train/001.gz for example) contains the following:
 ### Data Fields
 Each data instance (male/train/001.gz for example) contains the following fields:
 - 'gender': "gender of the subject",
+- 'subject_ID': "anonymized name of the subject which is also the filename"
 - 'mri_seg': "annotated array with the labels 0,1,2,3",
 - 'mri_labels': "dictionary of mapping between label integer and name",
 - 'mri_seg_dict': "a dictionary of individual masks of the different tissues (LT, AT, BT, ...)",