title: [Digital subtraction angiography and preoperative embolization for meningiomas].
abstract: OBJECTIVE
  To investigate the diagnostic value of digital subtraction angiography (DSA) and the clinical efficacy of preoperative embolization for miningiomas.
  
  
  METHODS
  Fifty-eight patients with meningioma were examined by DSA, and preoperative embolization was performed in patients whose miningiomas were supplied predominantly by the external carotid artery (ECA).
  
  
  RESULTS
  In 43 patients, the meningiomas was exclusively or predominantly supplied by ECA, and the feeding arteries were embolized with particles of 250-350 microm through catherization of ECA. The blood supply of the tumor in 31 patients was completely blocked, and partial occlusion through embolization was performed in 12 patients. No complications in relation to the embolization occurred. Fifty-three patients underwent total removal of the meningiomas and the others had partial removal 1-7 days following DSA and embolization, with tumor-associated intraoperative hemorrhage of 600 ml on average.
  
  
  CONCLUSIONS
  DSA has important diagnostic value for meningiomas, and preoperative embolization can be safe and effective to reduce bleeding, shorten the operation time and prevent postoperative complications.
authors.affiliation: Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. wangqiujing@hotmail.com
authors.forename: Qiu-jing
authors.initials: QJ
authors.lastname: Wang
authors.forename: Tie-lin
authors.initials: TL
authors.lastname: Li
authors.forename: Chuan-zhi
authors.initials: CZ
authors.lastname: Duan
authors.forename: Fang-ming
authors.initials: FM
authors.lastname: Yin
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Chen
authors.forename: Xu-ying
authors.initials: XY
authors.lastname: He
authors.forename: Ru-xiang
authors.initials: RX
authors.lastname: Xu
mesh_terms: D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy*; D008579:Meningioma / Q000000981:diagnostic imaging / Q000628:therapy*; D008875:Middle Aged; D011300:Preoperative Care