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Ultrasound imaging of the intestinal wall.
| Layer echogenicity | Anatomic structure |
|---|---|
| Hypoechogenic (liquid) or hyperecogenic (air) | Lumen |
| Hyperechogenic access | Lumen-mucous transition |
| Hypoechogenic | Mucous |
| Hyperechogenic | Sub-mucous |
| Hypoechogenic | Musculara propria |
| Hyperechogenic | Muscularis propria/serous transition, adjacent structures (fat, peritoneum) |
