The aim of this study is to explore the application value of multimodal ultrasound parameters in the diagnosis and treatment follow-up of Carpal Tunnel Syndrome.

Inclusion Criteria:

1. Age between 18 and 70 years;
2. Presence of sensory abnormalities and motor dysfunction in the median nerve distribution area;
3. Positive Tinel's sign or Phalen's test;
4. Neurophysiological examination consistent with mild to moderate Carpal Tunnel Syndrome.-

Exclusion Criteria:

1. Severe Carpal Tunnel Syndrome;
2. Concurrent rheumatic, metabolic, systemic, or other systemic diseases;
3. Concurrent cervical spondylosis or other peripheral neuropathies;
4. Wrist joint trauma, surgery, space-occupying lesions, or nerve itself with space-occupying lesions;
5. Concurrent malignant tumors or severe cardiopulmonary diseases;
6. History of previous wrist surgery or injections;
7. Pregnancy;
8. Allergy to corticosteroids or local anesthetics.-

This study primarily utilizes ultrasound multimodal imaging to observe the changes in multiple parameter indicators before and after the treatment of nerve hydrodissection combined with transverse carpal ligament release in patients clinically diagnosed with mild to moderate Carpal Tunnel Syndrome.