نتایج جستجو برای: gamma knife radiosurgery
تعداد نتایج: 130621 فیلتر نتایج به سال:
Stereotactic radiosurgery of small arteriovenous malformations (AVMs) and certain benign and malignant brain tumors using a gamma knife with 201 sources of cobalt-60 has been used to treat 300 patients at our institution since August 1987. This gamma knife-like earlier units developed in Stockholm, Buenos Aires, and Sheffield, England-was designed for closed-skull destruction of selected AVMs a...
BACKGROUND We evaluated Gamma Knife radiosurgery (GKRS) as a treatment option for patients with recurrent glioblastoma. PATIENTS AND METHODS 42 patients with histopathologically diagnosed recurrent grade IV tumor were treated with GKRS. All patients had undergone standard multimodal first-line treatment. The average time from diagnosis to GKRS was 17.0 months. The median target volume was 5.1...
OBJECT Pituitary adenomas are fairly common intracranial neoplasms, and nonfunctioning ones constitute a large subgroup of these adenomas. Complete resection is often difficult and may pose undue risk to neurological and endocrine function. Stereotactic radiosurgery has come to play an important role in the management of patients with nonfunctioning pituitary adenomas. This study examines the o...
This study proposes and simulates an inverse treatment planning and a continuous dose delivery approach for the Leksell Gamma Knife (LGK, Elekta, Stockholm, Sweden) which we refer to as "Tomosurgery." Tomosurgery uses an isocenter that moves within the irradiation field to continuously deliver the prescribed radiation dose in a raster-scanning format, slice by slice, within an intracranial lesi...
AIM Effectiveness and safety of gamma knife radiosurgery (GKRS) for hemorrhagic brainstem cavernous malformations (BSCM) is still an unresolved problem. The purpose of this study was to assess treatment results of GKRS for hemorrhagic BSCMs. MATERIAL AND METHODS A retrospective review was performed of patients with hemorrhagic BSCMs who were treated at the Acıbadem Kozyatağı Hospital GKRS uni...
RADIOSURGERY, a term introduced by the Swedish neurosurgeon Lars Leksell, in 1951, refers to the destruction of a discrete target area in the brain using the precise delivery of a single, high dose of radiation through the intact skull. Subsequently the definition was modified to include in addition to destruction ‘the production of a desired biological effect’. Early research efforts determine...
MICROSURGERY OF VENTRICULAR LESIONS: AN EXPERIENCE WITH 309 PATIENTS Prof. Basant Kumar Misra, Chairman, Department of Neurosurgery and Gamma Knife Radiosurgery, P. D. Hinduja National Hospital & Medical Research Centre, Mumbai, India President Elect, World Federation of Skull Base Societies Secretary, WFNS Chairman, Education Committee, Asian Australian Society of Neurological Surgeons Past Pr...
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