Results 121 to 130 of about 2,112 (174)
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Frameless Stereotaxy in Children
Pediatric Neurosurgery, 2008Frameless stereotaxy provides stereotactic localization without a standard stereotactic frame. Other reference points on the patient are linked to radio-graphic images by means of a three-dimensional (3D) digitizer. We report the use of a frameless stereotactic system to assist in 53 procedures in 52 children using the ISG Viewing Wand system (ISG ...
J M, Drake +5 more
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Stereotaxis and Abnormal Movements
1987A series is presented of 106 patients with extrapyramidal syndromes treated by stereotaxy. The importance of preoperative screening to assure favorable results is stressed. Surgical contraindications are elderly patients with dementia and akinesia. Axial dystonia and spasmodic torticollis respond poorly to stereotaxy; and bilateral interventions should
F, Frank +3 more
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Stereotaxy and behavioural disorders
Acta Neurochirurgica, 1993A series of 35 selected non senile patients was investigated with stereotactic brain biopsies in frontal and temporal lobes including the rhinencephalon. Results of neuropathological studies are confronted with clinical proposals. Alzheimer's disease is diagnosed in about 10% of the cases under 50 years of age, but more than 50% after 50.
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Ultrasound-guided periventricular stereotaxis
Neurosurgery, 1984Intraoperative ultrasound can aid the biopsy of deep intracranial lesions. It is, perhaps, less clear whether ultrasound could be useful in functional neurosurgery, where the target is not abnormal in echogenicity. As an example, we chose to investigate in a dog model the periventricular gray target, which is frequently the choice for the placement of ...
F D, Brown +5 more
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Stereotaxis of the Spinal Cord
Confinia Neurologica, 2007A method of stereotaxis of the spinal cord is described and the historical development of spinal stereotaxy is reviewed briefly. The importance of secure head and neck fixation and neck flexion is emphasised as important points in restricting cord mobility. The advantages of posterior and lateral approaches to the cord are mentioned.
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New possibilities for stereotaxis. Information-guided stereotaxis.
Stereotactic and functional neurosurgery, 2002Information-guided stereotaxis, assisted by visualization of medical information, will become the next generation of neurosurgical systems. We performed 76 open MRI surgeries at Tokyo Women's Medical University between March 3, 2000 and April 12, 2001. Of them, comparisons of pre- and post-operative MR images for malignant gliomas in 21 cases revealed ...
H, Iseki +10 more
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Technical possibilities and limitations of stereotaxy
Acta Neurochirurgica, 1993The availability of CT-Scanners and MRI coupled to stereotactic systems has made a stereotactic neurosurgical intervention an everyday tool. The indications, contra-indications and complications concerning intracranial tumours, the hypophysis, combined open stereotactic procedures, third ventriculostomy, diseases of the extrapyramidal motor system ...
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History of spinal cord stereotaxy
Journal of Neurosurgery, 1996✓ Stereotactic and functional neurosurgery has experienced a remarkable degree of development during the last 50 years, from the plaster of Paris frame of Spiegel and Wycis to the technology of frameless stereotaxis. Although predominantly used for intracranial procedures, stereotaxy has its roots in experimental studies of the spinal cord.
E M, Gabriel, B S, Nashold
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1993
There are few parts of the body which may not be approached by means of a surgical operation. An exception to this rule is the deep parts of the brain. The reasons are easy to understand. The head is a rigid cavity and about 90% by volume of its contents is cerebral tissue. This tissue tolerates retraction and displacement badly.
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There are few parts of the body which may not be approached by means of a surgical operation. An exception to this rule is the deep parts of the brain. The reasons are easy to understand. The head is a rigid cavity and about 90% by volume of its contents is cerebral tissue. This tissue tolerates retraction and displacement badly.
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Bulletin de l'Academie nationale de medecine, 1994
The first biopsy in Val-de-Grâce has been performed in 1987, under CT alone, with a Leksell frame. 150 punctures have been performed for a diagnostic or a therapeutic goal. Since 1990, stereotaxy is performed under MRI. 320 punctures have been made with 1.9% mortality and 1.3% morbidity.
C, Derosier, M, Desgeorges, G, Cosnard
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The first biopsy in Val-de-Grâce has been performed in 1987, under CT alone, with a Leksell frame. 150 punctures have been performed for a diagnostic or a therapeutic goal. Since 1990, stereotaxy is performed under MRI. 320 punctures have been made with 1.9% mortality and 1.3% morbidity.
C, Derosier, M, Desgeorges, G, Cosnard
openaire +1 more source