title: [3D visualization research on microstructure of human ulnar nerve].
abstract: OBJECTIVE
  To explore the application of 3D nerve visualization system in processing 2D image information of human ulnar nerve acquired by series freezing tissue section, staining and scanning. And to draw the 3D anatomical atlas of human ulnar nerve through 3D Nerve visualization software system.
  
  
  METHODS
  One left ulnar nerve (from medial fasciculus of brachial plexus to transverse carpal ligament, about 50 cm) was taken from a fresh donated cadaver. After marked with human hair and embedded in OCT, series freezing tissue sections were made and stained with acetylcholinesterase histochemically. Series 2D image information was obtained through high resolution scanner. Then the microstructure of ulnar nerve was reconstructed with 3D Nerve visualization software system.
  
  
  RESULTS
  Different cross sections of ulnar nerve have different numbers, positions and characters of the internal nerve fibers. The microstructure of ulnar nerve could be observed in magnifying visual field at any cross section after reconstructed in 3D Nerve visualization soft ware system, which made it possible to track stereo course of fascicles.
  
  
  CONCLUSIONS
  Reconstructed 3D Nerve visualization software system shows the whole microstructure of ulnar nerve and the 3D stereo-structure of its internal fascicles, thus provides exact topography atlas for medical teaching and facilitates precise repair of ulnar nerve injury to improve therapeutic effect.
authors.affiliation: Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, P.R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Liu
authors.forename: Ping
authors.initials: P
authors.lastname: Hu
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Meng
authors.initials: M
authors.lastname: Zhang
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.forename: Zenggan
authors.initials: Z
authors.lastname: Chen
authors.forename: Tongyi
authors.initials: T
authors.lastname: Chen
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: Chen
mesh_terms: D000328:Adult; D016616:Cryoultramicrotomy; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D013194:Staining and Labeling; D014459:Ulnar Nerve / Q000033:anatomy & histology*