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2005, Number 5

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Gac Med Mex 2005; 141 (5)

Stereotactic radiosurgery with linear accelerator (LINAC). Report of the technical experience in 100 cases treated at the Mexico General Hospital.

Lujan-Castilla PJ, Duran-Cruz M, Enríquez-Barrera M, García-Muñóz L, Hernández-Oviedo JO, Barragán-Pérez JA

Language: Spanish
References: 49
Page: 367-382
PDF size: 90.34 Kb.


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 withe 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 metastases 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 of collimators, dose of risk organ, homogeneity of target, margin of error, target, diameter of collimator and location of target. We applied the χ2 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 intracranial lesions.


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