title: [Stereotactic radiosurgery with linear accelerator (LINAC). Report of the technical experience in 100 cases treated at the Mexico General Hospital].
abstract: Stereotactic radiosurgery consists of the release and high dose radiation inside the intracraneal, small, well defined and stereotactic localized injury.
  
  
  OBJECTIVE
  In this study we describe the technical aspects, clinical results and dose radiation levels used in 100 patients treated with LINAC.
  
  
  METHODS
  One hundred patients received treatment with LINAC stereotactic radiosurgery, 34 AVM, 22 meningiomas, 18 astrocytomas, 11 pituitary adenomas, 5 cavernous malformations, 3 acoustic neuromas, 3 craniopharyngiomas, 2 cases of epilepsy, one brain metastasis and one ependymoma. The radiation dose changed in each case. Studied variables: response of the injury, toxicity, in target dose, number of isocenters, number of treatment arcs, number o fcollimators, dose of risk organ, homogeneity of target, margin of error, target, diameter of collimator and location of target. We applied the chi2 test with statistical significance of p < 0.05.
  
  
  RESULTS
  The median follow-up was 17.7 months. We had 3 cases of minor toxicity. We confirmed that for a greater target volume, greater number of treatment arcs were necessary, with greater margins of errors and greater number of isocenters.
  
  
  CONCLUSIONS
  Radiosurgery is a safe and reliable technique to treat benign and malignant intracraneal lesions.
authors.affiliation: Departamento de Radio-Oncologia, Hospital General de México.
authors.forename: Pomponio José
authors.initials: PJ
authors.lastname: Lujan-Castilla
authors.forename: Mauricio
authors.initials: M
authors.lastname: Durán-Cruz
authors.forename: Mario
authors.initials: M
authors.lastname: Enríquez-Barrera
authors.forename: Luís
authors.initials: L
authors.lastname: García-Muñóz
authors.forename: Jorge Omar
authors.initials: JO
authors.lastname: Hernández-Oviedo
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Barragán-Pérez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001927:Brain Diseases / Q000601:surgery*; D001932:Brain Neoplasms / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006769:Hospitals, General; D006801:Humans; D008297:Male; D008800:Mexico; D008875:Middle Aged; D016634:Radiosurgery / Q000379:methods