Abstract：
:The paper deals with the possibility of applying linear control theory and the theory of statistical dynamics to the complex and quantitative analysis of electroencephalographic records. The aim is to specify signals in the brain environment, in particular sources, speed and direction of signals, and the determination from results gained of the model of signal transfer, The possibilities of applying Fourier analysis and correlation analysis are examined. The methodical approach of the transient analysis is suggested. Conditions are discussed for approximate application of linear theory. Experimental results, as well as the calculation of transfer parameters of signals are evaluated. The method of magnetic EEG records, the scanning and processing of data on analogue and digital computers are introduced. The method described of correlation and transient analysis arises from the necessity to detect epileptic structures from an evaluation of SEEG records of the deep brain structure.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Neuschl S,Hluchy L,Nádvornik P,Sramka Msubject
Has Abstractpub_date
1976-01-01 00:00:00pages
85-91issue
23 Suppleissn
0001-6268issn
0942-0940pub_type
杂志文章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 objective of this study is to investigate the effect at the season of the time of surgery on the survival of brain tumor patients. The population studied consisted of 101 patients (39 males and 62 females), gathered from a geographically large area in northern Finland (from 64 degrees N to 70 degrees N), aged betw...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-009-0438-7
更新日期：2009-11-01 00:00:00
abstract：:A total of 39 patients suffering from clinical instability of the lumbar spine after microdiscectomy were evaluated for their long-term outcome. Included there were 21 (54%) male and 18 (46%) female patients with a mean age of 55 years. All had been operated on for a virgin single-level lumbar disc herniation between ...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s007010050072
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:Lumbar disc disease is a very common condition with a substantial socioeconomic impact. Studies have shown the importance of a multilevel assessment of this disease, as its course is influenced by many factors. Most follow-up studies use the degree of physical impairment to measure the outcome of a certain t...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-007-1114-4
更新日期：2007-08-01 00:00:00
abstract：:Without mortality, 31 patients underwent conservative treatment for traumatic supratentorial acute subdural haematoma (SDH). Later on six of them had the haematoma surgically evacuated mainly because of a deterioration of the Glasgow Coma Scale (GCS) scores. It was found that patients with a midline shift of less than...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF02307412
更新日期：1995-01-01 00:00:00
abstract：:The system consists of an inverted U-shaped frame with right angled corners, so mounted that it can be adjusted vertically, antero-posteriorly and made to rotate on an axis ("the axis of the frame") formed by its free ends. The frame carries an arc probe carrier whose probe holder slides on an arc which is centered on...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01406198
更新日期：1983-01-01 00:00:00
abstract：:Recent animal research has provided evidence that brain ischaemia is associated with a shift of energy related metabolites (lactate, adenosine, inosine, and hypoxanthine) and several transmitters from the intracellular to the extracellular fluid (ECF). These chemical changes of the ECF reflect the energy crisis of the...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01405420
更新日期：1990-01-01 00:00:00
abstract：BACKGROUND:As technical progress advances, telemonitoring has become an important part of patient care in many areas of medical treatment. However, distanced surveillance of intracranial pressure (ICP) could not be established so far. With the recent introduction of a telemetric ICP measurement probe, new possibilities...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-019-03959-5
更新日期：2019-08-01 00:00:00
abstract：:The results of electro-oculographic recordings made after caloric vestibular stimulation (C.O.G.) in severe head injured patients are discussed. It was found that: 1. The C.O.G. correlates with the state of consciousness of the patients. 2. The rate of improvement of the C.O.G. correlates with the rate of the clinical...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01405860
更新日期：1976-01-01 00:00:00
abstract：BACKGROUND:Ganglioglioma is a common seizure-associated tumor, and some factors that may influence the postoperative seizure outcome have not been discussed or are controversial. The goal of this study was to observe the postoperative seizure outcome and the prognostic factors in patients with epileptogenic ganglioglio...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-011-1259-z
更新日期：2012-05-01 00:00:00
abstract：INTRODUCTION:In low-grade glioma (LGG) surgery, intraoperative differentiation between tumor and most likely tumor-free brain tissue can be challenging. Intraoperative ultrasound can facilitate tumor resection. The aim of this study is to evaluate the accuracy of linear array ultrasound in comparison to conventional in...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-014-2314-3
更新日期：2015-02-01 00:00:00
abstract：:A rare case of primary cerebral abscess due to Nocardia asteroides, and its surgical removal, are described. Postoperative meningitis caused by the same fungi was succesfully cured with sulphadiazine and cycloserine. The nocardial disease, its neurological complications, and therapy are reviewed. ...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01401932
更新日期：1977-01-01 00:00:00
abstract：:The purification of a substance which protects mitochondrial activity against its decay in association with various cerebral pathologies, and the effect of this substance in vitro and in vivo have been mentioned. Defatted egg albumin was hydrolyzed with pronase, and diafiltrated through mesh, to obtain fractions of mo...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01405239
更新日期：1977-01-01 00:00:00
abstract：:In the last 3.5 years (up to August 1988) out of 450 patients with surgically treated intracranial aneurysms in 100 cases (22%) acute surgery was performed (up to 72 h after SAH). Patients in grade I-III (WFNS scale) were operated upon. In all the cases there were supratentorial aneurysms. CSF drainage during the oper...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01420184
更新日期：1990-01-01 00:00:00
abstract：:The authors report seven cases of cerebellar infarcts in the distribution of the PICA, of whom six were treated surgically. Only one patient died and he was not operated on. Although of the remaining six patients four were comatose, and two presented obvious signs of midbrain decerebration, all of them subsequently sh...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01401324
更新日期：1984-01-01 00:00:00
abstract：:We investigated 76 patients with known subarachnoid haemorrhage (SAH) in order to compare the results of angiography and non-invasive Doppler recordings of cerebral artery blood velocity in the diagnosis of cerebral vasospasm. One radiologist and one neurovascular surgeon assessed angiographic spasm visually on a four...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01405268
更新日期：1989-01-01 00:00:00
abstract：:The cavum septi pellucidi (CSP) and cavum Vergae (CV) are persistent, primitive, or acquired, midline structures of adult human brain. It is customary to distinguish between the non-communicating and the communicating cava, depending on whether the cavum communicates with the cerebral ventricular system or not. Only a...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01808836
更新日期：1997-01-01 00:00:00
abstract：:The oxyhaemoglobin, methaemoglobin and bilirubin concentrations were determined in subdural haematomas and cerebrospinal fluid from 18 patients. The total haem derivative concentration ranged from 55 mumol/l to 13.9 mmol/l in the haematomas and from 0.1 mumol/l to 8.2 mumol/l in the cerebrospinal fluid. Bilirubin was ...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01790770
更新日期：1988-01-01 00:00:00
abstract：:Cerebral developmental venous anomalies (DVAs) are variations of venous vascular anatomy related to an underdevelopment of either the superficial or deep venous emissary system, resulting in a dilated transmedullary vein fed by multiple smaller venous radicles responsible for drainage of normal brain parenchyma. While...
journal_title：Acta neurochirurgica
pub_type： 杂志文章,评审
doi：10.1007/s00701-020-04213-z
更新日期：2020-05-01 00:00:00
abstract：BACKGROUND:We used [F-18] FDG microPET imaging as part of a longitudinal study to investigate changes in the brain. METHODS:Glucose metabolism during the development of neuropathic pain after tibial and sural nerve transection (TST) model rats. MicroPET images were obtained 1 week before operation and then weekly for ...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-015-2415-7
更新日期：2015-06-01 00:00:00
abstract：BACKGROUND:Eloquent area surgery has become safer with the development of intraoperative neurophysiological monitoring and brain mapping techniques. However, the usefulness of intraoperative electric brain stimulation techniques applied to the management and surgical treatment of cavernous malformations in supratentori...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-018-3644-3
更新日期：2018-10-01 00:00:00
abstract：OBJECTIVE:To define the value of electrically elicited motor evoked potentials (MEP), obtained during the initial phase of the coma, for correct prediction of the post-coma motor status. METHODS:Fifty-two patients were investigated by MEP within 72 hours after onset of the coma. It was the aim to correlate the MEP fin...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s007010050385
更新日期：1999-01-01 00:00:00
abstract：:The follow up of 49 stereotactically operated epileptics is graphically demonstrated and the 79 operations in basic targets within the amygdala and the area of the anterior pole of the thalamus are described. The patients had valuable gaining in 80%; The continued developement of stereotactic methods in the future is ...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/978-3-7091-8444-8_30
更新日期：1976-01-01 00:00:00
abstract：:Homovanillic acid (HVA) and 5-hydroxyindolacetic acid (5-HIAA) in ventricular CSF were determined in 19 patients (12 female 7 male) with brain tumours. No relationship was found between ventricular fluid pressure (VFP) and levels of HVA and 5-HIAA. A relationship was observed between ventricular CSF, HVA concentration...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01405944
更新日期：1976-01-01 00:00:00
abstract：:The purpose of this study was to evaluate whether wide surgical exposures result in poorer outcome of lumbar disc surgery compared to smaller traditional exposures. The aim was also to assess if a dural tear has any impact on the postoperative clinical outcome. One hundred and twenty-two patients (56 women and 66 men,...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01411260
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:Glioblastoma (GBM) is the most common and malignant brain tumor in adults. Despite therapeutic advances, almost all patients eventually experience tumor recurrence. Leptomeningeal spread (LMS) is not a rare condition of recurrence. However, the standard management protocol of LMS has not been established. Th...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-015-2344-5
更新日期：2015-04-01 00:00:00
abstract：BACKGROUND:The management of pineal cysts is still debatable, especially for asymptomatic incidental ones. For symptomatic cysts associated with hydrocephalus, the surgical management is mandatory and may include either classical microsurgical approaches to the pineal region or endoscopic trans-ventricular approaches i...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-013-1849-z
更新日期：2013-10-01 00:00:00
abstract：:The results of 16 cases of temporal bone resection were evaluated. The resections, 12 of which were total and 4 partial, had mostly been performed for squamous cell carcinoma invading the temporal bone. Five patients in whom the intervention was considered radical and not followed by irradiation, were alive and well 9...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/BF01400676
更新日期：1991-01-01 00:00:00
abstract：INTRODUCTION:A 55-year-old man underwent a microvascular decompression procedure for a pharmacoresistant trigeminal neuralgia. Preoperative MRI showed a neurovascular conflict between the Vth nerve root and the superior cerebellar artery. METHODS:Dissection of the intracisternal trigeminal root was undertaken, and a p...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-009-0488-x
更新日期：2010-04-01 00:00:00
abstract：INTRODUCTION:Patients with thalamic hemorrhage, depressed level of consciousness and/or signs of elevated intracranial pressure may be treated with neurocritical care (NCC) and external ventricular drainage (EVD) for release of cerebrospinal fluid. METHODS:Forty-three patients with thalamic hemorrhage treated with NCC...
journal_title：Acta neurochirurgica
pub_type： 杂志文章
doi：10.1007/s00701-013-1871-1
更新日期：2013-11-01 00:00:00
