title: [The application of multi-slice CT and MRI on maxillofacial region soft tissue measurement].
abstract: OBJECTIVE
  To evaluate the value of multi-slice CT and MRI on maxillofacial region soft tissue measurement.
  
  
  METHODS
  A total of 12 cases of dentofacial orthodontic underwent X-ray photograph, multi-slice CT and MRI scanning. The angle and distance of maxillofacial region soft tissue were measured respectively. All data were analyzed statistically for ANOVA with SPSS11.0 software package.
  
  
  RESULTS
  There was no significant difference among the three measurement methods: X-ray photograph, multi-slice CT and MRI(P>0.05). MRI had advantages on depicting hierarchical structure of maxillofacial region, especially soft tissues, while multi-slice CT had advantages on depicting structure of maxillofacial region, both hard and soft tissues.
  
  
  CONCLUSIONS
  Multi-slice CT and MRI are useful on maxillofacial region soft tissues measurement. MRI is superior to multi-slice CT and X-ray photograph on maxillofacial region soft tissue measurement.
authors.affiliation: Department of Orthodontics and Dentofacial Orthopedics, Shaoxing No.5 Hospital, Shaoxing 312000, China.
authors.forename: Guo-xing
authors.initials: GX
authors.lastname: Zhang
authors.forename: Zhen-hua
authors.initials: ZH
authors.lastname: Zhao
authors.forename: Bo-ying
authors.initials: BY
authors.lastname: Wang
authors.forename: Li-jun
authors.initials: LJ
authors.lastname: Xu
authors.forename: Guo-can
authors.initials: GC
authors.lastname: Feng
authors.forename: Wei-yong
authors.initials: WY
authors.lastname: Qian
mesh_terms: D002508:Cephalometry; D006801:Humans; D009970:Orthodontics; D036542:Tomography, Spiral Computed; D014057:Tomography, X-Ray Computed