Abstract:
OBJECTIVES:One of the main obstacles of electrode implantation in epilepsy surgery is the electrode shift between implantation and the day of explantation. We evaluated this possible electrode displacement using intraoperative MRI (iopMRI) data and CT/MRI reconstruction. METHODS:Thirteen patients (nine female, four male, median age 26 ± 9.4 years) suffering from drug-resistant epilepsy were examined. After implantation, the position of subdural electrodes was evaluated by 3.0 T-MRI and thin-slice CCT for 3D reconstruction. Localization of electrodes was performed with the volume-rendering technique. Post-implantation and pre-explantation 1.5 T-iopMRI scans were coregistered with the 3D reconstructions to determine the extent of electrode dislocation. RESULTS:Intraoperative MRI at the time of explantation revealed a relevant electrode shift in one patient (8%) of 10 mm. Median electrode displacement was 1.7 ± 2.6 mm with a coregistration error of 1.9 ± 0.7 mm. The median accuracy of the neuronavigation system was 2.2 ± 0.9 mm. Six of twelve patients undergoing resective surgery were seizure free (Engel class 1A, median follow-up 37.5 ± 11.8 months). CONCLUSION:Comparison of pre-explantation and post-implantation iopMRI scans with CT/MRI data using the volume-rendering technique resulted in an accurate placement of electrodes. In one patient with a considerable electrode dislocation, the surgical approach and extent was changed due to the detected electrode shift. ABBREVIATIONS:ECoG: electrocorticography; EZ: epileptogenic zone; iEEG: invasive EEG; iopMRI: intraoperative MRI; MEG: magnetoencephalography; PET: positron emission tomography; SPECT: single photon emission computed tomography; 3D: three-dimensional.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Sommer B,Rampp S,Doerfler A,Stefan H,Hamer HM,Buchfelder M,Roessler Kdoi
10.1080/01616412.2018.1484588subject
Has Abstractpub_date
2018-10-01 00:00:00pages
811-821issue
10eissn
0161-6412issn
1743-1328journal_volume
40pub_type
杂志文章abstract:BACKGROUND:Mapping of brain perfusion using bolus tracking methods is increasingly used to assess the amount and severity of cerebral ischemia in acute stroke. Using relative perfusion maps, however, it is difficult to identify the tissue at risk-maximum (TARM) of infarction with sufficient reliability and reproducibil...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X158956
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVES:Papaverine has been used in treating vasospasm following subarachnoid hemorrhage (SAH). However, its action mechanism for cerebral vascular relaxation is not clear. Potassium and calcium channels are closely related to the contraction and relaxation of cerebral smooth muscle. Therefore, to identify the role ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164107X191021
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Hemorrhagic transformation (HT) is a common complication of ischemic stroke. We performed this study to determine whether aspartate aminotransferase (AST) to alanine aminotransferase (ALT) ratio (AAR) was related to HT, as well as compare the predictive values of AAR, ALT and AST for HT in patients with isch...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1796403
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To establish a detailed technical procedure for studying the anatomical correlates of chronic cerebrospinal venous insufficiency in cadavers of multiple sclerosis and control subjects, and to present our findings of the normal anatomic venous structures, with reference to previous descriptions from the liter...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000071
更新日期:2012-10-01 00:00:00
abstract::According to recent reports, malnutrition may be associated with a worse prognosis in stroke patients. The aim of this study was to determine the nutritional status of stroke patients and its impact on neurological and functional status of patients in the early post-stroke period. Our prospective study included a tota...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2019.1672379
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:To study whether Clopidogrel-Aspirin combined treatment for high risk transient ischaemic attack (TIA) or minor stroke results in increased number of lesions associated with anti-thrombotic cerebral haemorrhage or cerebral micro-bleeds (CMB) than aspirin alone treatment. METHODS:The patients recruited in CH...
journal_title:Neurological research
pub_type: 杂志文章,随机对照试验
doi:10.1179/1743132815Y.0000000087
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:We tested whether repetitive magnetic stimulation (rMS) induces an afferent input to the spinocerebral tract in patients with complex regional pain syndrome (CRPS). METHODS:Cortical and spinal motor evoked potentials (cMEP and sMEP), as well as the contra- and ipsilateral silent period (cCSP and iCSP), were...
journal_title:Neurological research
pub_type: 临床试验,杂志文章
doi:10.1179/016164105X17224
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The predictive effect of blood cell ratio on ischemic event has been widely confirmed. Whether PWR and PNR can assess the risk of endovascular treatment (EVT) is largely unclear. This study aimed to investigate the prognostic value of PNR and PWR in acute ischemic stroke patients treated with EVT...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1790868
更新日期:2020-10-01 00:00:00
abstract::The intracranial aneurysm, with an estimated occurrence of up to 4% in the general population, belongs among the most dangerous of cerebrovascular diseases. Although less than one-fifth of these cases results in a subarachnoid haemorrhage, the resulting disability and mortality rate is too high. More understanding is ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1991.11739995
更新日期:1991-12-01 00:00:00
abstract::Objective: Remote limb ischemic postconditioning (RIPostC) protects the brain from damage induced by transient focal ischemia/reperfusion. However, the underlying mechanism remains unclear. Methods: RIPostC induced by 10 min of occlusion and another 10 min releasing of blood flow for three cycles in the hind limbs was...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2018.1523037
更新日期:2019-01-01 00:00:00
abstract::This paper describes a test prototype for precision robot-assisted surgery using a hexapod operating robot and a movable operating cockpit for tactile feedback. The objective of the work described is twofold: 1, to evaluate the use of hexapod robots for precisely manipulating endoscopes and surgical instruments in sub...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1999.11740887
更新日期:1999-01-01 00:00:00
abstract::Excessive calcium influx has been implicated in the pathophysiology of ischemic cerebral damage. The effects of nimodipine, a calcium antagonist, on the Na(+)-K+/MG+2 ATPase activity, Ca+2/Mg+2 ATPase, lipid peroxidation, and early ultrastructural findings were examined at the acute stage of ischemia in the rat brain....
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164101101198208
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVE:Intravenous administration of recombinant tissue plasminogen activator (rtPA) is known as the only approved treatment for acute ischemic stroke. However, it is still controversial whether acute ischemic stroke patients with atrial fibrillation should receive rtPA therapy. METHODS:We studied 99 patients altog...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12656393665206
更新日期:2010-05-01 00:00:00
abstract::Acute presentation of Type I Chiari malformation in children is distinctly rare. An 11 year old male suffered a trauma to the right temporal-parietal region in a tobogganing accident resulting in an open depressed skull fracture. Radiographic evaluation included a Computed Tomographic scan which also demonstrated a si...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.1998.11740599
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Studies have shown that awareness of early stroke symptoms and the use of ambulances are two important factors in decreasing pre-hospital stroke delay. The purpose of this study is to evaluate a comprehensive educational stroke protocol in improving stroke response times. METHOD:Two urban commun...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000203
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:It is difficult for the treatment of neurologic tumors with current therapies, including glioma. Despite the advances in cancer therapeutics, the outcomes in these patients remain poor and, therefore, new modalities are required. Recent findings have demonstrated that human umbilical cord blood mesenchymal st...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12816242542490
更新日期:2011-05-01 00:00:00
abstract::This article covers the basis of tethered cord syndrome as a stretch-induced spinal cord disorder, including pathophysiology, signs and symptoms, imaging diagnosis, indication for surgical treatment, and surgical procedures. Anomalies that cause mechanical spinal cord tethering are listed, and the surgical untethering...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1179/016164104225017947
更新日期:2004-10-01 00:00:00
abstract::Objectives: Natalizumab (NTZ), a treatment indicated for patients with highly active Relapsing - Remitting Multiple Sclerosis (RRMS), is known to induce increased relative frequency of lymphocytes. Progressive Multifocal Leukoencephalitis (PML) is a rare but serious adverse event related to NTZ. Moreover, reduced L-se...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2020.1722913
更新日期:2020-03-01 00:00:00
abstract::Endolymphatic sac tumors are rare, low-grade adenocarcinomas of the petrous bone. These tumors are highly vascularized and surgical removal is often challenging. We present a staged endovascular-neurosurgical approach consisting of stent-assisted angioplasty of the petrous carotid, selective endovascular embolization ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164103101201436
更新日期:2003-04-01 00:00:00
abstract::The treatment of arteriovenous malformations depends on the efforts of a multidisciplinary team whose ultimate goal is to achieve better results when compared to the natural history of the pathology. The role of adjuvant treatment modalities such as radiosurgery and endovascular embolization is discussed. Treatment st...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1080/01616412.1998.11740583
更新日期:1998-12-01 00:00:00
abstract:OBJECTIVES:Although magnesium is a well-known treatment for vasospasm following subarachnoid hemorrhage, its mechanism of action for cerebral vascular relaxation is not clear. In addition, it is known that L-type calcium (Ca(2+)) channels play a pivotal role in smooth muscle contraction. To investigate the role of L-t...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000016
更新日期:2012-04-01 00:00:00
abstract::OBJECTIVE: To explore the neural substrates of implicit self-esteem in university students. METHODS: The subjects comprised four females and six males (aged 20-25 years). They were asked to finish the implicit association test (IAT) for implicit self-esteem while brain electrical activity was recorded at 64 scalp site...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/174313209X431138
更新日期:2009-07-08 00:00:00
abstract::The present study used immunohistochemistry to investigate p53 expression in rat brain following transient occlusion of the middle cerebral artery. In the control group, no p53-immunoreactive cells were found in any region of the central nervous system. P53 expression in reactive astrocytes was not obvious in the fore...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164102101199828
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:Ischemic stroke is one of the most common causes of death worldwide. Early and accurate prediction of outcome in acute ischemic stroke (AIS) is important and influences risk-optimized therapeutic strategies. We investigated the changes in high-sensitivity C-reactive protein (Hs-CRP) and homocysteine (HCY) le...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132813Y.0000000228
更新日期:2013-11-01 00:00:00
abstract::Corticotrophin releasing factor has been shown in several models of tissue injury to be an effective treatment for edema. In a previous study we demonstrated this ability in two models of traumatic brain injury (TBI). The aim of this study was to assess whether human corticotrophin releasing factor (hCRF) could additi...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1080/01616412.2000.11740737
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:In order to test for mechanisms of whole brain radio therapy side effects and possible neuroprotective measures, a rodent model is desirable. In many models, a high single dose of 8-20 Gray (Gy) of whole brain irradiation is used. These experimental radiation protocols do not closely reflect the clinical situ...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/1743132812Y.0000000143
更新日期:2013-05-01 00:00:00
abstract::In addition to its possible role as a replacement source in CNS degenerative diseases, neural transplantation may be used to augment the normal production of neuroactive substances. Our laboratory at the University of Illinois at Chicago has shown, in both acute and chronic pain models, that transplantation of adrenal...
journal_title:Neurological research
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1080/01616412.1997.11740775
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVES:The purpose of this study is to use diffusion tensor imaging (DTI) parameters to evaluate cerebral ischemia/reperfusion injury in the infarct core (IC) and ischemic penumbra (IP) in a rhesus transient middle cerebral artery occlusion (MCAO) model. METHODS:Seven rhesus monkeys were used to construct the MCAO...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164110X12761752770177
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:It is not fully understood how the stimulus/response curves obtained by transcranial magnetic stimulation (TMS) reflect the function of the cortico-motoneuronal (CM) and spinal motoneuronal (SM) systems in healthy subjects. To understand these response functions, we studied patients with amyotrophic lateral s...
journal_title:Neurological research
pub_type: 杂志文章
doi:10.1179/016164108X323717
更新日期:2008-12-01 00:00:00
abstract::Sinus pericranii is a rare circumscribed fluctuating vascular swelling of the scalp that communicates with the intracranial venous system. It has been associated with other intracranial vascular malformations. The tumour is usually round, fluctuant, nonpulsatile, and disappears with compression. Its size increases dur...
journal_title:Neurological research
pub_type: 杂志文章,评审
doi:10.1080/01616412.1994.11740276
更新日期:1994-12-01 00:00:00