نتایج جستجو برای: stereotactic microneurosurgery
تعداد نتایج: 11689 فیلتر نتایج به سال:
BACKGROUND Image-guided procedures such as computed tomography (CT) guided, neuronavigator-guided and ultrasound-guided methods can assist neurosurgeons in localizing the intraparenchymal lesion of the brain. However, despite improvements in the imaging techniques, an accurate diagnosis of intrinsic lesion requires tissue sampling and histological verification. AIMS The present study was carr...
Stereotactic radiosurgery requires imaging to define both the stereotactic space in which the treatment is delivered and the target itself. Image fusion is the process of using rotation and translation to bring a second image set into alignment with the first image set. This allows the potential concurrent use of multiple image sets to define the target and stereotactic space. While a single ma...
AIM A retrospective analysis of 126 consecutive computed tomography (CT)-guided, frame-based stereotactic procedures in 121 patients is presented to evaluate the diagnostic yield, accuracy, complications, management of non-diagnostic cases and followup. MATERIAL AND METHODS The medical records of the identified patients were investigated retrospectively. Age, sex, surgical procedures, histopa...
One hundred patients affected by multifocal brain lesions were investigated by serial stereotactic biopsy. Systemic diseases and primary neoplasms elsewhere were previously ruled out. The histological diagnosis obtained in this series comprises malignant gliomas in 37% of patients; primary non-Hodgkin's brain lymphoma in 15%; metastatic brain tumours in 15% (no evidence of the primary tumour at...
UNLABELLED The aim of the present study was to determine the clinical feasibility of integration of stereotactic SPECT (sSPECT) with 201Tl in the stereotactic MRI (sMRI)-based planning of brain tumor biopsy. Furthermore, the predictive value of the integrated techniques was analyzed by comparison with the corresponding histologically determined metabolic activity. METHODS Ten patients underwe...
Health technology The use of frameless stereotactic biopsy was investigated. The technique consisted of a neuronavigation system, based on an infrared LED-based system (Easy Guide Neuro, Philips Medical Systems), and a novel stereotactic guide that was adaptable to a variety of instruments. The developed guide was freely adjustable to reach the entire cranium and would lock in place rigidly, al...
BACKGROUND Stereotactic biopsy for brainstem lesion offers high diagnostic yield with low morbidity. We compared two modalities of biopsy procedure, frame-based and frameless stereotaxy, either transfrontal or transcerebellar route. The benefits and operation considerations are discussed. METHODS Ten patients with intrinsic brainstem lesion diagnosed with stereotactic biopsy from August 2006 ...
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