title: Laser Interstitial Thermal Therapy Technology, Physics of Magnetic Resonance Imaging Thermometry, and Technical Considerations for Proper Catheter Placement During Magnetic Resonance Imaging-Guided Laser Interstitial Thermal Therapy.
abstract: Laser-induced thermal therapy has become a powerful tool in the neurosurgical armamentarium. The physics of laser therapy are complex, but a sound understanding of this topic is clinically relevant, as many centers have incorporated it into their treatment algorithm, and educated patients are demanding consideration of its use for their disease. Laser ablation has been used for a wide array of intracranial lesions. Laser catheter placement is guided by stereotactic planning; however, as the procedure has popularized, the number of ways in which the catheter can be inserted has also increased. There are many technical nuances for laser placement, and, to date, there is not a clear understanding of whether any one technique is better than the other. In this review, we describe the basic physics of magnetic resonance-guided laser-induced thermal therapy and describe the several common techniques for accurate Visualase laser catheter placement in a stepwise fashion.
  
  
  BACKGROUND
  MRg-LITT, magnetic resonance-guided laser-induced thermal therapyPAD, precision aiming device.
authors.affiliation: *Department of Neurosurgery, Rutgers University, New Jersey Medical School, Newark, New Jersey; ‡Section of Neurosurgery, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey; §Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; ¶Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas; ‖Department of Neurosurgery, Emory University Hospital, Atlanta, Georgia.
authors.forename: Nitesh V
authors.initials: NV
authors.lastname: Patel
authors.forename: Matthew
authors.initials: M
authors.lastname: Mian
authors.forename: R Jason
authors.initials: RJ
authors.lastname: Stafford
authors.forename: Brian V
authors.initials: BV
authors.lastname: Nahed
authors.forename: Jon T
authors.initials: JT
authors.lastname: Willie
authors.forename: Robert E
authors.initials: RE
authors.lastname: Gross
authors.forename: Shabbar F
authors.initials: SF
authors.lastname: Danish
mesh_terms: D002404:Catheterization / Q000379:methods*; D006801:Humans; D006979:Hyperthermia, Induced; D021621:Imaging, Three-Dimensional / Q000379:methods*; D053685:Laser Therapy / Q000379:methods*; D053783:Magnetic Resonance Imaging, Interventional / Q000379:methods*; D010825:Physics; D025321:Surgery, Computer-Assisted / Q000379:methods; D062125:Thermometry / Q000379:methods*