Research of Brachial Plexus Anatomy

Research of the Sonographic Anatomy of Interscalene Brachial Plexus

The research aims at analyzing the sonographic anatomy characteristics of the interscalene brachial plexus.

Inclusion Criteria:

• ASA physical status class I or II
• Scheduled for elective surgery

Exclusion Criteria:

• Skin lesion or infection of neck
• Any known peripheral neuropathy
• Brachial nerve plexus injury
• Previous injury or operation on neck
• Pregnancy or breast feeding
• Allergic to ultrasound gel