title: [Application of high-field intraoperative magnetic resonance imaging in stereotactic aspiration and drainage of hypertensive hematomas].
abstract: OBJECTIVE
  To explore the application values of high-field intraoperative magnetic resonance imaging (MRI) in stereotactic aspiration and drainage of hypertensive hematomas.
  
  
  METHODS
  During a period of August 2011 to January 2012, 11 patients with hypertensive hemorrhage were examined preoperatively by conventional MRI and diffusion tensor imaging (DTI) with 1.5T intraoperative MRI system (Signa HDi, GE, USA) at Tianjin Medical University General Hospital. The anatomic relationship of corticospinal tract (CST) and hematoma was used for the operative planning with the neuronavigation planning workstation (iPlan Cranial 3.0 software, BrainLab, Germany) for 3D reconstruction. During stereotactic surgery, intraoperative MRI scan was performed. According to the clearance rate of hematomas, the operators decided to finish the operation or update the operative planning to continue hematoma removal. All patients were reexamined by conventional MRI and DTI at Week 3 postoperation. Then comparative analysis was performed for the preoperative and postoperative integrity of CST.
  
  
  RESULTS
  No death or severe complications occurred. All patients showed improvement of motor function and the postoperative integrity of CST.
  
  
  CONCLUSIONS
  The intracranial condition may be monitored effectively by intraoperative MRI throughout surgery so as to increase the rate of hematoma removal and reduce the postoperative complications.
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: Xing-lu
authors.initials: XL
authors.lastname: Miao
authors.forename: Zeng-guang
authors.initials: ZG
authors.lastname: Wang
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Yang
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao
authors.forename: Zhi-juan
authors.initials: ZJ
authors.lastname: Chen
authors.forename: Fu-hua
authors.initials: FH
authors.lastname: Yu
authors.forename: Shu-yuan
authors.initials: SY
authors.lastname: Yue
authors.forename: Jian-ning
authors.initials: JN
authors.lastname: Zhang
authors.forename: Qing
authors.initials: Q
authors.lastname: Yu
mesh_terms: D000328:Adult; D000368:Aged; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D056324:Diffusion Tensor Imaging; D005260:Female; D006406:Hematoma / Q000601:surgery*; D006801:Humans; D020299:Intracranial Hemorrhage, Hypertensive / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D013238:Stereotaxic Techniques; D013396:Suction / Q000379:methods*; D025321:Surgery, Computer-Assisted