title: High-frequency sonography of the volar digital nerves of the hand.
abstract: BACKGROUND
  The purpose of this study is to describe our technique for high-frequency sonography of the volar digital nerves and to define the course, caliber, and morphology of normal volar digital nerves.
  
  
  METHODS
  The volar digital nerves of 10 volunteers were imaged in the long axis using a linear ultrasound transducer. Height, weight, glove size, and hand dominance were recorded. Each radial and ulnar nerve was divided into four segments. Segment thickness and depth were measured. A mixed model analysis for repeated measures was utilized (α = 0.05).
  
  
  RESULTS
  The average nerve thickness (NT) was 1.1 mm (± 0.01 SE), and the average nerve depth (ND) was 2.8 mm (± 0.04 SE). Neither NT nor ND demonstrated any significant correlation with height, age, weight, body mass index, or glove size. Nerves ranged in thickness from 0.7 to 1.5 mm and in depth from 0.7 to 6.8 mm.
  
  
  CONCLUSIONS
  High-frequency sonography permits high-resolution imaging of the volar digital nerves.
authors.affiliation: Department of Radiology, Albert Einstein College of Medicine/Jacobi Medical Center, 1400 Pelham Parkway South, Bronx, New York, USA. kessler.james@gmail.com
authors.forename: James M
authors.initials: JM
authors.lastname: Kessler
authors.forename: Mauricio
authors.initials: M
authors.lastname: de la Lama
authors.forename: Hillary R
authors.initials: HR
authors.lastname: Umans
authors.forename: Judith
authors.initials: J
authors.lastname: Negron
mesh_terms: D000328:Adult; D005260:Female; D006225:Hand / Q000000981:diagnostic imaging* / Q000294:innervation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011826:Radial Nerve / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014459:Ulnar Nerve / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014463:Ultrasonography