title: CT virtual sialendoscopy versus conventional sialendoscopy in the visualization of salivary ductal lumen: an in vitro study.
abstract: OBJECTIVE
  To evaluate the feasibility of computed tomographic (CT) virtual sialendoscopy and its performance characteristics for the visualization of salivary ductal lumen as compared with conventional sialendoscopy.
  
  
  METHODS
  An in vitro study.
  
  
  METHODS
  Conventional sialendoscopy was performed in 16 submandibular glands in vitro and the surgical findings were recorded. Then a contrast agent was injected into the Wharton's duct via orifice. After CT scanning, the CT data were transferred to an independent workstation and were postprocessed with commercially available software to generate three-dimensional reconstructive and virtual sialendoscopic images. Finally, the plastination of submandibular glands was performed with 20% perchloroethylene ethyl acetate plastics filler to make cast specimens. CT three-dimensional reconstruction of the ductal system was compared with the cast specimen, and the performance of conventional sialendoscopy and CT virtual sialendoscopy for the visualization of salivary ductal lumen was also compared.
  
  
  RESULTS
  The CT data acquisition and postprocessing protocol were feasible. CT three-dimensional reconstruction enabled clear visualization of the ductal system from any directions and angles, which showed close resemblance to the cast specimens. And CT virtual sialendoscopy created clear endoluminal views of salivary ducts simulating those obtained with conventional sialendoscopy.
  
  
  CONCLUSIONS
  Our initial experience shows that CT virtual sialendoscopy has the potential to be an attractive imaging technique for the visualization of salivary ductal lumen.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
authors.forename: Yu-xiong
authors.initials: YX
authors.lastname: Su
authors.forename: Shi-ting
authors.initials: ST
authors.lastname: Feng
authors.forename: Gui-qing
authors.initials: GQ
authors.lastname: Liao
authors.forename: Yun-qi
authors.initials: YQ
authors.lastname: Zhong
authors.forename: Hai-chao
authors.initials: HC
authors.lastname: Liu
authors.forename: Guang-sen
authors.initials: GS
authors.lastname: Zheng
mesh_terms: D000328:Adult; D004724:Endoscopy / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D008875:Middle Aged; D011857:Radiographic Image Interpretation, Computer-Assisted; D012796:Sialography / Q000379:methods*; D013363:Submandibular Gland / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014584:User-Computer Interface