introduction polymer gel dosimeters offer a practical solution to 3d dose verification for conventional radiotherapy as well as intensity-modulated and stereotactic radiotherapy. in this study, egsnrc calculated and pagat polymer gel dosimeter measured dose profiles from single shot irradiation with 18 mm collimator of gamma knife in homogeneous and inhomogeneous phantoms were compared with eac...

BACKGROUND With the introduction of stereotactic surgery in humans by Spiegel and Wycis in 1947 and the great advances in neuroimaging, image-guided stereotactic brain biopsy is the mainstay for diagnosis of intrinsic deep-seated brain lesions. Stereotactic biopsy is usually safe, and the reported rate of complications is minimal, with mortality being reported in less than 1% and significant mo...

BACKGROUND Treatment of low-grade astrocytoma (WHO grade II) (LGA II) remains a challenge. There is limited information regarding the long-term effects of stereotactic brachytherapy (SBT) (temporary (125)Iodine seeds) on patients with LGA II. OBJECTIVES The purpose of this study was to evaluate disease control and survival after stereotactic brachytherapy in patients with circumscribed and re...

Brain metastases (BMs) are cancer cells that spread to the brain from primary tumors in other organs. Up 35% of adult patients develop BMs. The treatment BM who have well-controlled extracranial disease and a small number lesions consists localized doses radiation (stereotactic radio surgery (SRS)). Estimating prognosis among may allow treatments be chosen balance durability intracranial tumor ...

Trigeminal schwannoma is a neurogenic tumor of the fifth cranial nerve. Despite advances in surgical practice, stereotactic radiosurgery an alternative treatment management these patients due to problems such as nerve injuries and accessibility The patient was admitted our hospital with complaints headache tingling left face for last few months. discussed neurooncology council intervention not ...

Background: Radiosurgery is a focal brain irradiation technique that delivers, usually in a single session, high dose of ionizing radiation. The presence of lateral electronic disequilibrium and steep dose gradients in small fields demands special attention to the selection of a suitable detector with respect to its size, composition and response. Materials and Methods : Small circular fields w...

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