title: High-resolution 3T Magnetic Resonance Imaging of the Triangular Fibrocartilage Complex in Chinese Wrists: Correlation with Cross-sectional Anatomy.
abstract: BACKGROUND
  The injury of the triangular fibrocartilage complex (TFCC) is a common cause of ulnar-sided wrist pain. The aim of this study was to investigate if the high-resolution 3T magnetic resonance imaging (MRI) could demonstrate the detailed complex anatomy of TFCC in Chinese.
  
  
  METHODS
  Fourteen Chinese cadaveric wrists (from four men and three women; age range at death from 30 to 60 years; mean age at 46 years) and forty healthy Chinese wrists (from 20 healthy volunteers, male/female: 10/10; age range from 21 to 53 years with a mean age of 32 years) in Beijing Jishuitan Hospital from March 2014 to March 2016 were included in this study. All cadavers and volunteers had magnetic resonance (MR) examination of the wrist with coronal T1-weighted and proton density-weighted imaging with fat suppression in three planes, respectively. MR arthrography (MRAr) was performed on one of the cadaveric wrists. Subsequently, all 14 cadaveric wrists were sliced into 2 mm thick slab with band saw (six in coronal plane, four in sagittal plane, and four in axial plane). The MRI features of normal TFCC were analyzed in these specimens and forty healthy wrists.
  
  
  RESULTS
  Triangular fibrocartilage, the ulnar collateral ligament, and the meniscal homolog could be best observed on images in coronal plane. The palmar and dorsal radioulnar ligaments were best evaluated in transverse plane. The ulnotriquetral and ulnolunate ligaments were best visualized in sagittal plane. The latter two structures and the volar and dorsal capsules were better demonstrated on MRAr.
  
  
  CONCLUSIONS
  High-resolution 3T MRI is capable to show the detailed complex anatomy of the TFCC and can provide valuable information for the clinical diagnosis in Chinese.
authors.affiliation: Department of Radiology, Beijing Jishuitan Hospital, Beijing Institute of Traumatology and Orthopedics, Beijing 100035, China.
authors.forename: Hui-Li
authors.initials: HL
authors.lastname: Zhan
authors.affiliation: Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China.
authors.forename: Wen-Ting
authors.initials: WT
authors.lastname: Li
authors.affiliation: Department of Radiology, Beijing Jishuitan Hospital, Beijing Institute of Traumatology and Orthopedics, Beijing 100035, China.
authors.forename: Rong-Jie
authors.initials: RJ
authors.lastname: Bai
authors.affiliation: Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China.
authors.forename: Nai-Li
authors.initials: NL
authors.lastname: Wang
authors.affiliation: Department of Radiology, Beijing Jishuitan Hospital, Beijing Institute of Traumatology and Orthopedics, Beijing 100035, China.
authors.forename: Zhan-Hua
authors.initials: ZH
authors.lastname: Qian
authors.affiliation: Department of Radiology, Beijing Jishuitan Hospital, Beijing Institute of Traumatology and Orthopedics, Beijing 100035, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ye
authors.affiliation: MRI and CT Services, Radiology Associates, LLP, Corpus Christi, TX 78411, USA.
authors.forename: Yu-Ming
authors.initials: YM
authors.lastname: Yin
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D051478:Triangular Fibrocartilage / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014953:Wrist / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014955:Wrist Joint / Q000033:anatomy & histology / Q000000981:diagnostic imaging*