نتایج جستجو برای: stereotactic

تعداد نتایج: 11615  

2013
Bomin Sun Wei Liu

EATING DISORDERS (EDS) ARE A GROUP OF SEVERELY IMPAIRED EATING BEHAVIORS, WHICH INCLUDE THREE SUBGROUPS: anorexia nervosa (AN), bulimia nervosa (BN), and ED not otherwise specified (EDNOS). The precise mechanism of EDs is still unclear and the disorders cause remarkable agony for the patients and their families. Although there are many available treatment methods for EDs today, such as family t...

2012
Chi Huang

Treatment of Multiple Brain Metastases Using Stereotactic Radiosurgery with Single-Isocenter Volumetric Modulated Arc Therapy: Comparison with Conventional Dynamic Conformal Arc and Static Beam Stereotactic Radiosurgery by

Journal: :AJNR. American journal of neuroradiology 2017
K-K Chen W-Y Guo H-C Yang C-J Lin C-H F Wu S Gehrisch M Kowarschik Y-T Wu W-Y Chung

BACKGROUND AND PURPOSE Time-resolved 3D-DSA (4D-DSA) enables viewing vasculature from any desired angle and time frame. We investigated whether these advantages may facilitate treatment planning and the feasibility of using 4D-DSA as a single imaging technique in AVM/dural arteriovenous fistula radiosurgery. MATERIALS AND METHODS Twenty consecutive patients (8 dural arteriovenous fistulas and...

2014
Timothy Pok Chi Yeung Maher Kurdi Yong Wang Baraa Al-Khazraji Laura Morrison Lisa Hoffman Dwayne Jackson Cathie Crukley Ting-Yim Lee Glenn Bauman Slav Yartsev Qinghui Zhang

BACKGROUND The therapeutic efficacy of stereotactic radiosurgery for glioblastoma is not well understood, and there needs to be an effective biomarker to identify patients who might benefit from this treatment. This study investigated the efficacy of computed tomography (CT) perfusion imaging as an early imaging biomarker of response to stereotactic radiosurgery in a malignant rat glioma model....

Journal: :Seizure 2014
Dirk Van Roost

The idea of attempting to eliminate epileptogenic foci by stereotactic means is not novel; it has been pursued since the 1960s. A range of ablation techniques has been used: from simple electrocoagulation to thermo-coupled electrocoagulation or radiosurgery, and, most recently, focused ultrasound. If the results of stereotactic treatment for epilepsy surgery have not been completely convincing ...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1987
J N Wilden P J Kelly

Thirty five patients presenting with epilepsy alone and non-enhancing low-density lesion on the CT scan underwent a computer-assisted CT-guided stereotactic biopsy with stereotactic angiographic control. There was no mortality or morbidity in this series and the diagnostic yield was 97%. Thirty four patients had low grade intra-axial neoplasms. After an estimation of the pathological extent of ...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2014
Maverick W K Tsang Michael K M Kam S F Leung Anthony T C Chan

Stereotactic ablative radiotherapy has emerged as a standard treatment for medically inoperable stage I non-small-cell lung cancer and selected cases of lung metastasis. Techniques to freeze or limit tumour movement during treatment and image-guided radiation delivery are integral to a successful stereotactic ablative treatment without overdose of surrounding normal structures. In this article,...

Journal: :iranian journal of radiation research 0
m.t. bahreyni toossi department of medical physics, faculty of medicine, mashhad university of medical sciences, mashhad, iran a.r. khoshbin khoshnazar

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...

2012
Ferrat Dinçoğlan Ömer Sağer Bahar Dirican Serdar Sürenkök Sait Şirin Murat Beyzadeoğlu

Stereotactic radiosurgery is being increasingly used for the treatment of both benign and malignant disorders such as brain metastasis, spinal cord tumors, intracranial blood vessel abnormalities and neurological/functional problems such as Parkinson’s disease, epilepsy, obsessive-compulsive disorder and trigeminal neuralgia. The purpose of this report was to present our experience at the Depar...

2013
Akash Bijlani Giovanni Aguzzi David W. Schaal Pantaleo Romanelli

OBJECTIVE To describe and synthesize the current stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) cost-effectiveness research to date across several common SRS and SBRT applications. METHODS This review was limited to comparative economic evaluations of SRS, SBRT, and alternative treatments (e.g., other radiotherapy techniques or surgery). Based on PubMed searche...

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