Abstract:
:An infrared based frameless stereotactic navigation device (Easy Guide Neuro) was investigated for its clinical applicability, registration/application accuracy and limitations in a standard operating room set-up. In a five-month period 40 frameless stereotactic procedures (23 female, 17 male, mean age 46.4, yrs range 10-83) including 36 craniotomies and 4 spinal surgery procedures were performed. Image registration, data transfer and operation planning using skin fixed fiducials (between 5-10, mean 6.6) and CCT in 12 patients/MRI in 28 patients, generally was done the day before surgery. Clinical applicability was proven in all procedures with an additional time for pre-operative imaging and system application in the OR of 50 min mean (35-120 range). A useful registration was achieved in 39/40 patients (97.5%) with a registration accuracy of 3.4 mm (range 1.8-6.7) for brain surgery cases and 14.4 mm (6.8-25) for spine cases. This resulted in intra-operative application accuracy values for brain surgery of 4.2 mm mean (range 1-12). Enhanced registration/application accuracy values over the test period from 4.2/3.8 mm mean (Cases 1-20) up to 3.2/2 mm mean (Cases 21-40) was observed. In spinal surgery an application accuracy of 11.3 mm mean (range 5-20) was found. An intra-operative re-calibration because of system-head drift was necessary in none of the patients, nevertheless, application accuracy degradation due to brain shift was detected in every case. In conclusion, the system allowed a time sufficient accurate frameless intra-operative localisation guidance in cavernoma, meningioma, glioma, and brain metastasis surgery. In spinal surgery, the application accuracy exceeded clinical usefulness due to high registration inaccuracy using skin markers.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Roessler K,Ungersboeck K,Dietrich W,Aichholzer M,Hittmeir K,Matula C,Czech T,Koos WTdoi
10.1007/BF02750999subject
Has Abstractpub_date
1997-01-01 00:00:00pages
551-9issue
6eissn
0001-6268issn
0942-0940journal_volume
139pub_type
杂志文章abstract:OBJECT:Parafalcine subdural empyema and those along the superior and inferior surface of the tentorium are rare entities. We present a series of 10 patients where we have attempted to describe the pathophysiology, clinical features, and management of subdural empyema. METHODS:The study group included 10 cases of falco...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-010-0695-5
更新日期:2011-01-01 00:00:00
abstract::The authors report on two types of carotid-A(1) junctional aneurysms projecting backwards. In the two A(1)-type examples, the aneurysm originated at the posterior wall of the proximal A(1) joining the carotid termination and could be clipped using an ipsilateral pterional approach. However, in the carotid-type example...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-007-1223-0
更新日期:2007-08-01 00:00:00
abstract::Specimens of the anterior pituitary lobe were investigated histologically in 28 craniopharyngioma patients operated on trans-sphenoidally. The pituitary glands in 3 patients revealed lymphocytic invasion giving a histological appearance typical of lymphocytic hypophysitis (incidence: 11%). At follow-up examination all...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01476492
更新日期:1994-01-01 00:00:00
abstract::The effects of thromboxane A2 synthetase inhibitor and hyperdynamic therapy on delayed cerebral ischaemia following aneurysmal subarachnoid haemorrhage were evaluated in a series of twenty eight patients, who underwent aneurysmal clipping with 72 hours after subarachnoid haemorrhage. Postoperatively, 13 patients were ...
journal_title:Acta neurochirurgica
pub_type: 临床试验,杂志文章
doi:10.1007/BF01401822
更新日期:1993-01-01 00:00:00
abstract::Ventricular shunting has dramatically improved the care of children with hydrocephalus. Yet shunt malfunctions are extremely common and cause significant morbidity. To document shunt problems in children with a neural tube defect and hydrocephalus, 67 children born since 1973 were studied via life-table analysis. 28% ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01418798
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:In surgical treatment of acute subdural hematoma (ASDH), neurosurgeons frequently encounter bleeding from cortical arteries, which is usually controlled with bipolar coagulation. However, bipolar coagulation is associated with a risk of sacrificing the cortical artery, which may affect the prognosis of neuro...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3634-5
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND:Establishment of a reliable and rapid diagnosis is of paramount importance in spinal tuberculosis. The available gadgetry of investigations, such as AFB smear, culture of Mycobacterium tuberculosis, and Uniplex PCR, suffers from a lack of adequate sensitivity and/or a lack of rapidity. Therefore, many times ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-016-3065-0
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Vestibular schwannoma (VS) is a benign tumor originating from the vestibulocochlear nerve. The optimal treatment strategy is debated, since surgery may result in iatrogenic facial nerve injury. We report the results of VS surgery in a population-based unselected cohort in a center with access to Cyber Knife ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-04055-4
更新日期:2020-01-01 00:00:00
abstract::Firstly, 14 patients are described who developed either an acquired Chiari malformation (ACM) alone (7 cases) or ACM and syringomyelia (7 cases) after lumbar subarachnoid space (SAS) shunting or in one case, epidural anaesthesia with SAS penetration. Four groups are considered: 3 cases with craniofacial dysostosis and...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010050119
更新日期:1998-01-01 00:00:00
abstract::The results of a personal series of 44 consecutive patients undergoing burrhole evacuation and closed system suction drainage for chronic subdural haematoma are presented. 43 patients made a complete recovery and one was left with moderate disability. Contralateral weakness in one patient, recurrence of haematoma in a...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01400867
更新日期:1994-01-01 00:00:00
abstract::We report three cases of ischaemic complications following direct surgery of unruptured cerebral aneurysms having necks with atherosclerotic or calcified walls. Among 30 patients we treated directly for unruptured aneurysm over the last 4 years, 6 had 8 such aneurysms. Atherosclerotic or calcified neck was a major con...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010050364
更新日期:1999-01-01 00:00:00
abstract::Magnetic Resonance Imaging (MRI) scanning would prove useful for lesions that are not visualized on computed tomography (CT) scan or are better defined on MRI scan. The problem of reference marker visualization can be overcome by coating them with mineral oil or by placing paramagnetic fluid filled rods on them. The u...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01456375
更新日期:1986-01-01 00:00:00
abstract::Forty-two patients with 44 cephaloceles treated between 1966 and 1993 are presented. Eighteen lesions were occipital, 2 parietal, 1 at the anterior fontanelle, 11 sincipital, and 12 basal. In recent years computerized tomography (CT) and magnetic resonance imaging (MRI) provided better information on the site and natu...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01417678
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Microsurgical circumferential stripping of intracerebral metastases is often insufficient in achieving local tumor control. Supramarginal resection may improve local tumor control. METHODS:A retrospective analysis was performed for patients who underwent supramarginal resection of a cerebral metastasis by a...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-015-2405-9
更新日期:2015-06-01 00:00:00
abstract::Analysis of verbal responses to electrical stimulation of the trigeminal ganglion and rootlets has been the only method available so far to localize the electrode tip in the most appropriate trigeminal division or division segment, prior to thermocoagulation during percutaneous treatment for trigeminal neuralgia. A di...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01418517
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Middle cerebral artery (MCA) aneurysms are among the more challenging aneurysms for endovascular treatment. We report a contemporary 5-year experience with endovascular therapy for MCA aneurysms at a high-volume neurovascular center. METHODS:Review of prospectively maintained intracranial aneurysm database....
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-012-1594-8
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Torcular meningioma is a rare type of brain tumor with few reports regarding the appropriate resection approach for this disease. In cases without sinus occlusion, surgeons are advised to spare the sinus; however, the sinus may interfere with the visual field. METHOD:Endoscopic supracerebellar infratentoria...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-03950-0
更新日期:2019-08-01 00:00:00
abstract::The authors describe a seventeen-years-old girl suffering from partial seizures with complex symptomatology. The neuroradiological studies demonstrated a slow-growing glial tumour seated deeply in the right temporo-occipital region. Scalp EEG demonstrated a bilateral asynchronous temporal focus without definite latera...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01774387
更新日期:1978-01-01 00:00:00
abstract::The application of gallium-67 (67Ga) citrate has not been reported for the detection of an intracranial germinoma. The purpose of this report is to further evaluate the effectiveness of 67Ga scintigraphy in neurohypophyseal germinomas. 67Ga studies in five male patients with histologically verified intracranial pure g...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010070109
更新日期:2000-01-01 00:00:00
abstract::Using magnetic resonance imaging with planes of section tangential to the left or right perietal convexity, we studied the sulcus pattern of the parietal lobes in 50 healthy subjects. The postcentral sulcus and the intraparietal sulcus were easily identified. As a characteristic landmark, and corresponding to postmort...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01411428
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Specific microanatomical characteristics of the trigeminal nerve root (TNR) blood supply and close neurovascular relationships with surrounding vessels as well as their possible clinical significance were the main reasons for this study. METHOD:The vasculature of 25 adult and four fetal TNRs were microdisse...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-010-0913-1
更新日期:2011-05-01 00:00:00
abstract::One hundred and fifty patients with trigeminal neuralgia were treated by percutaneous compression of the Gasserian ganglion (PCGG) during the last 8 years. The technique is the one described by Mullan with the balloon inflated during 6 minutes with 0,7 cc of contrast medium. Over a follow-up period ranging from 6 mont...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01411438
更新日期:1995-01-01 00:00:00
abstract::Recent studies on prognostic variables and the intensive care of head injuries enabled us to select 64 patients and administer a standard treatment protocol to prevent secondary brain injury. All the patients were in coma with a flexor motor pattern as the best response between 6 and 24 hours after the accident and/or...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01413271
更新日期:1985-01-01 00:00:00
abstract::Enterogenous cysts mostly locate in the spinal canal and have only rarely been reported in an intracranial site. We report a case of enterogenous cyst in the ventral to brainstem. The 45-year-old woman presented with paroxysmal headache and diplopia. A CT scan and MRI revealed a cystic clival mass from midbrain to med...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-004-0227-2
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:In case of suspected normal pressure hydrocephalus, MRI is performed systematically and can sometimes highlight an obstruction of the flow pathways of the CSF (aqueductal stenosis or other downstream obstruction). It seems legitimate for these patients to ask the question of a treatment with endoscopic third...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-03932-2
更新日期:2019-07-01 00:00:00
abstract::Ninety-six patients with aneurysmal subarachnoid haemorrhage underwent serial measurement of regional cerebral blood flow throughout the period of their treatment over the period of 5 years (1983 to 1988). A portable bedside xenon cerebral blood flow machine was used in this study and the initial slope index (ISI) val...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01407659
更新日期:1991-01-01 00:00:00
abstract::We retrospectively analysed 13 patients (pts.) treated at the University of Tübingen from 1985 to 1993 to evaluate the results of radiation therapy (XRT) given as an adjuvant to totally or subtotally resected meningiomas. The overall survival was 38% at five years with a probability of relapse of 50% at this time. Rec...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF02187764
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:The asymmetry of tonsillar ectopia, syringomyelia, and clinical manifestations, and their correlations in adult Chiari I malformation (CIM) are seldom discussed. METHODS:Clinical and imaging data of 104 consecutive adult patients with CIM and syringomyelia were retrospectively reviewed. A method was devised...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-014-2000-5
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Rathke's cleft cyst (RCC) with significant squamous and/or stratified epithelium including smooth transition from single cuboidal to squamous epithelium (tRCC) is rare and possibly represents an intermediate form to craniopharyngioma. METHODS:Twelve patients with histologically confirmed tRCC were retrospec...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-012-1593-9
更新日期:2013-06-01 00:00:00
abstract::Intraspinal nerve-sheath tumours are generally slow growing and are diagnosed after causing symptoms such as back pain and progressive neurological symptoms. We present a rare example of multiple schwannomas located in the thoracolumbar spine in a previously asymptomatic patient who developed severe neurological defic...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0239-z
更新日期:2009-06-01 00:00:00