title: Performance of magnetic field-guided navigation system for interventional neurosurgical and cardiac procedures.
abstract: A hospital-based magnetic guidance system (MGS) was installed to assist a physician in navigating catheters and guide wires during interventional cardiac and neurosurgical procedures. The objective of this study is to examine the performance of this magnetic field-guided navigation system. Our results show that the system's radiological imaging components produce images with quality similar to that produced by other modern fluoroscopic devices. The system's magnetic navigation components also deflect the wire and catheter tips toward the intended direction. The physician, however, will have to oversteer the wire or catheter when defining the steering angle during the procedure. The MGS could be clinically useful in device navigation deflection and vessel access.
authors.affiliation: Department of Radiation Oncology, Rush University Medical Center, Chicago, Illinois 60612, USA.
authors.forename: James C H
authors.initials: JC
authors.lastname: Chu
authors.forename: Wen Chien
authors.initials: WC
authors.lastname: Hsi
authors.forename: Lincoln
authors.initials: L
authors.lastname: Hubbard
authors.forename: Yunkai
authors.initials: Y
authors.lastname: Zhang
authors.forename: Damian
authors.initials: D
authors.lastname: Bernard
authors.forename: Pamela
authors.initials: P
authors.lastname: Reeder
authors.forename: Demetrius
authors.initials: D
authors.lastname: Lopes
mesh_terms: D006348:Cardiac Surgical Procedures / Q000295:instrumentation* / Q000379:methods; D002404:Catheterization / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008280:Magnetics / Q000295:instrumentation*; D019635:Neurosurgical Procedures / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000295:instrumentation* / Q000379:methods