Ultrasound of Median To Ulnar Nerves Cross Sectional Area Ratio In Idiopathic Carpal Tunnel Syndrome

Authors

Ahmed Abdelsattar Abdraboh, Department of Radiodiagnosis, Faculty of Medicine, Menoufia University, EgyptFollow
Mohamed Abdelaziz Maaly, Department of Radiodiagnosis, Faculty of Medicine, Menoufia University, Egypt
Maha Mohamed Salman, Department of Radiodiagnosis, Faculty of Medicine, Menoufia University, Egypt
Mahmoud Mohamed Moawad, Department of Radiodiagnosis, Faculty of Medicine, Menoufia University, Egypt

Subject Area

Radiology

Article Type

Original Study

Abstract

Objectives: To explore if using ulnar nerve cross sectional area (u-CSA) as an internal control by measuring median nerve to ulnar nerve cross sectional area ratio (m-CSA: u-CSA ratio) can give better results in the diagnosis of idiopathic carpal tunnel syndrome. Background: Measurement of median nerve cross sectional area (m-CSA) at the level of pisiform has become popular in diagnosis of idiopathic carpal tunnel syndrome (ICTS) with ultrasound (US) with the added benefit of detecting anatomical variants and compressive pathology. Results: In a comparison between 50 patients with ICTS and 50 of controls, patients had significantly higher m-CSA: u-CSA ratio (p < 0.001) and higher m-CSA (p < 0.001). M-CSA: u-CSA ratio had slightly higher statistical significance than m-CSA. The highest specific and sensitive cut off value for diagnosis of ICTS using m-CSA: u-CSA ratio was 2.88. Conclusions: M-CSA: u-CSA ratio was slightly superior to m-CSA in the diagnosis of ICTS. They both could be used simultaneously to support the diagnosis of ICTS.

Recommended Citation

Abdraboh, Ahmed Abdelsattar; Maaly, Mohamed Abdelaziz; Salman, Maha Mohamed; and Moawad, Mahmoud Mohamed (2024) "Ultrasound of Median To Ulnar Nerves Cross Sectional Area Ratio In Idiopathic Carpal Tunnel Syndrome," Menoufia Medical Journal: Vol. 37: Iss. 4, Article 5.
DOI: https://doi.org/10.59204/2314-6788.1137