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Table 2 Landmarks at standardized ultrasound examination of wrist and MCP joints
| Position | Landmarks |
|---|---|
| Wrist dorsal central | The third extensor digitorum tendon, tip of radius, carpometacarpal joint, os lunatum and os capitatum. |
| Wrist dorsal radial | The extensor carpi radialis longus tendon, tip of radius, carpometacarpal joint, os scaphoideum and os trapezoideum |
| Wrist dorsal ulnar | The middle of caput ulnae placed minimum 1 centimetre from the right side and minimum 2 from the left side of the image margins |
| Wrist volar central | N. medianus, tip of radius, radiocarpal and intercarpal joints |
| MCP* dorsal radial | Joint space, diaphysis of the metarcarpal and proximal phalanx bones. The joint space has to be placed minimum 2 centimetre from the right side and minimum 1 centimetre from the left side of the image margins |
| MCP* dorsal ulnar | Joint space, diaphysis of the metarcarpal and proximal phalanx bones. The joint space has to be placed minimum 2 centimetre from the right side and minimum 1 centimetre from the left side of the image margins |
| MCP* joint volar | Joint space and flexor tendon. The joint space has to be placed minimum 2 centimetres from the right side and minimum 1 centimetre from the left side of the image margins. |
