Fig. 1.
Assignment of different key words to each video (in alphabetical order)
| Beginner |
| Benign |
| CEUS* |
| Duplex |
| EUS** |
| Excellent |
| Expert |
| Inflammatory |
| Intervention |
| Malignant |
| Normal |
| Pronounced |
| Typical |
| Unspecific |
Assignment of videos to different organ systems (in alphabetical order)
| Biliary |
| Intestine |
| Kidney |
| Liver |
| Lymph |
| Pancreas |
| Spleen |
| Thorax |
| Thyroid |
| Unassigned |
| Vascular |