title: [Computer aided intracranial aneurysm embolization with GDC].
abstract: OBJECTIVE
  To establish an expert system that automatically generates optimal GDC selection program for the embolization of intracranial aneurysm.
  
  
  METHODS
  Twenty highly cost-effective cases of intracranial aneurysm embolized with GDC dense packing were collected. Each of them contains information including aneurysm's volume measured by three-dimension digital subtraction angiography (3D DSA), aneurysm's location, maximum transverse diameter, maximum length diameter, and GDC selection program. An expert system made up of a case base, a mathematical model simulating experts' experience (established with the help of data mining techniques combining multi-layer perceptron network with polyhedrons in high dimensional space), and data envelopment analysis (DEA), was implemented.
  
  
  RESULTS
  When the user inputted four required parameters (volume, location, maximum transverse diameter, and maximum length diameter) into the expert system and clicked the "program design" button, candidate GDC selection program(s) would be presented in the result box.
  
  
  CONCLUSIONS
  Case base, data mining techniques, and DEA can be used to establish the expert system that automatically generates optimal GDC selection program for the embolization of intracranial aneurysm. Its clinical value needs to be further evaluated.
authors.affiliation: Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Zhang
authors.forename: Feng
authors.initials: F
authors.lastname: Ling
authors.forename: Tianzhen
authors.initials: T
authors.lastname: Shen
authors.forename: Chenzhuo
authors.initials: C
authors.lastname: Ye
authors.forename: Daoying
authors.initials: D
authors.lastname: Geng
authors.forename: Xianglong
authors.initials: X
authors.lastname: Huang
authors.forename: Xiaoyuan
authors.initials: X
authors.lastname: Feng
mesh_terms: D000328:Adult; D000368:Aged; D017076:Computer-Aided Design; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*; D008297:Male; D008875:Middle Aged