Abstract:
OBJECT:In the past, the accuracy of surface matching has been shown to be disappointing. We aimed to determine whether this had improved over the years by assessing application accuracy of current navigation systems, using either surface matching or point-pair matching. METHODS:Eleven patients, scheduled for intracranial surgery, were included in this study after a power analysis had shown this small number to be sufficient. Prior to surgery, one additional fiducial marker was placed on the scalp, the "target marker," where the entry point of surgery was to be expected. Using one of three different navigation systems, two patient-to-image registration procedures were performed: one based on surface matching and one based on point-pair matching. Each registration procedure was followed by the digitization of the target marker's location, allowing calculation of the target registration error. If the system offered surface matching improvement, this was always used; and for the two systems that routinely offer an estimate of neuronavigation accuracy, this was also recorded. RESULTS:The error in localizing the target marker using point-pair matching or surface matching was respectively 2.49 mm and 5.35 mm, on average (p < 0.001). In those four cases where an attempt was made to improve the surface matching, the error increased to 6.35 mm, on average. For the seven cases where the system estimated accuracy, this estimate did not correlate with target registration error (R2 = 0.04, p = 0.67). CONCLUSION:The accuracy of navigation systems has not improved over the last decade, with surface matching consistently yielding errors that are twice as large as when point-pair matching with adhesive markers is used. These errors are not reliably reflected by the systems own prediction, when offered. These results are important to make an informed choice between image-to-patient registration strategies, depending on the type of surgery at hand.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Mongen MA,Willems PWAdoi
10.1007/s00701-019-03867-8subject
Has Abstractpub_date
2019-05-01 00:00:00pages
865-870issue
5eissn
0001-6268issn
0942-0940pii
10.1007/s00701-019-03867-8journal_volume
161pub_type
杂志文章abstract:INTRODUCTION:Melanotic neuroectodermal tumor of infancy (MNT1) is a rare congenital pigmented neoplasm of neural crest origin, locally aggressive, and rapidly growing that develops during the first year of life. It most commonly arises from the maxilla, the cranial vault, and the mandible. Early diagnosis and radical s...
journal_title:Acta neurochirurgica
pub_type: 杂志文章,随机对照试验,评审
doi:10.1007/s00701-009-0472-5
更新日期:2010-05-01 00:00:00
abstract::In 17 primary transnasal operations on Nelson tumours long-term results are assessed measuring ACTH plasma levels and performing regular neuroradiological controls. In small intrasellar adenomas only one recurrent ACTH elevation near to pretreatment levels without symptoms from tumour growth was observed after 10 year...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01405437
更新日期:1982-01-01 00:00:00
abstract:BACKGROUND:In terms of response to fractionated radiotherapy, metastatic brain tumors of certain origins are considered radioresistant. OBJECTIVE:To determine the influence of "radioresistant" histology on outcomes of brain metastases treated with radiosurgery. METHODS:Between 2001 and 2017, 121 patients with brain m...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3726-2
更新日期:2018-12-01 00:00:00
abstract::Microvascular decompression (MVD) has come to stay as an effective way of treating hemifacial spasm. But it remains to be seen how much each of the electrophysiological monitoring techniques (intra-operative) are contributing to its increased efficacy. Their role as indicators for re-exploration or recurrence is to be...
journal_title:Acta neurochirurgica
pub_type: 临床试验,杂志文章
doi:10.1007/s007010170091
更新日期:2001-01-01 00:00:00
abstract::The prevention of cerebral vasospasm with OKY-046, an imidazole derivative and a thromboxane synthetase inhibitor, was studied co-operatively at ten neurosurgical services. Intravenous administrations of 2, 5 or 10 mu/kg/minute of OKY-046 were given continuously from the earliest possible day to the 14th SAH-day to 82...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01476216
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:Wnt proteins are bifunctional axon guidance molecules, several of which appear to mediate guidance of corticospinal tract axons along the spinal cord. Here, we studied increasing effect on regeneration by Wnt-containing alginate scaffolds on spinal cord injury (SCI). METHODS:A total of 32 rats were injured ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-013-1663-7
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND:Nitric oxide is a key mediator of post-traumatic inflammation in the brain. We examined the expressions of iNOS, nNOS, and eNOS in inbred DA and PVGa rat strains where DA is susceptible to autoimmune neuroinflammation and PVGa-resistant. METHODS:Parietal contusions using a weight drop model were produced in...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-012-1297-1
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Blood blister-like aneurysms (BBAs) pose a significant challenge to neurosurgeons and neuro-interventionalists. These fragile broad-based aneurysms have a propensity to rupture with minimal manipulation during surgical or endovascular explorations because, unlike saccular aneurysms, they lack all layers of t...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-014-2212-8
更新日期:2014-11-01 00:00:00
abstract::The superficial middle cerebral veins (SMCVs) are large veins to drain the brain and therefore anatomical knowledge of them is important for neurosurgeons and neuroradiologists. In a patient with a ruptured blister aneurysm, we incidentally found during angiography an aberrant drainage of the SMCVs, which penetrated t...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-019-03838-z
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Implantation of neural cells has been proposed as a therapeutic strategy for repairing the injured or diseased brain. In the present study we have examined the potential of olfactory ensheathing cells (OEC) to promote brain repair after surgical implantation in a rodent model of parkinsonism. METHODS:Neonat...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-007-1121-5
更新日期:2007-01-01 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::Diffuse brain injury in rabbits was caused by injecting olive oil and saline into one internal carotid artery. In this report, the fourth of a series, the effects of this experimental brain injury on respiration and acid-base balance of blood are analyzed. The animals that withstood the injury best were those that had...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01405898
更新日期:1975-01-01 00:00:00
abstract::Intracranial clear-cell meningioma (CCM) is rarely reported in the literature since it has to be distinguished from other subtypes of meningioma. Most of the CCMs are intraspinal, according to the related literature. We report a case of occipital parietal CCM in a 6-year-old child, review all the 35 intracranial CCMs ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章,评审
doi:10.1007/s00701-009-0236-2
更新日期:2009-04-01 00:00:00
abstract::Ki-67 antigen is used as a marker of proliferative activity that is linked to growth rate, invasiveness and prognosis of pituitary adenomas. So far the distribution of Ki-67 index within an individual adenoma has not been investigated. If Ki-67 antigen expression differs significantly within an individual pituitary ad...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-004-0390-5
更新日期:2004-12-01 00:00:00
abstract::Leptomeningeal cysts are commonly seen in children usually following trauma and associated with bulging leptomeninges at the site of fracture. Intradiploic leptomeningeal cyst is an important differential for an expansile lytic lesion in the bony calvarium especially in a patient with a previous history of trauma. Her...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-015-2660-9
更新日期:2016-02-01 00:00:00
abstract::A 49-year-old woman had a left frontal expanding mass with calcified areas. A craniotomy and resection of the mass were performed. Histological sections showed a mixed tumour: osteochondrosarcoma-glioblastoma multiforme. The absence of previous irradiation and its location, deep in the frontal lobe and apparently unat...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01808532
更新日期:1979-01-01 00:00:00
abstract::The introduction of transcranial Doppler ultrasonography (TCD) has made it possible to examine blood flow characteristics in carotid-cavernous sinus fistulae (CCSF) in a noninvasive, relatively simple, and reliable way. This study investigated the usefulness of TCD in the diagnosis and follow-up of various CCSF subtyp...
journal_title:Acta neurochirurgica
pub_type: 临床试验,杂志文章
doi:10.1007/s007010100022
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:Anterior cranial fossa dural arterio-venous fistulas (DAVFs) represent 6% of all intracranial DAVFs; characteristically they show an aggressive behaviour with high risk of intracranial haemorrhage. Peculiar anatomical features, such as feeding by the ethmoidal arteries and the pattern of venous drainage (fre...
journal_title:Acta neurochirurgica
pub_type: 杂志文章,多中心研究
doi:10.1007/s00701-017-3107-2
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:The placement of intervertebral cages in anterior cervical discectomy (ACDF) supposedly maintains foraminal height. The most commonly reported cage-related complication is subsidence, although it is unknown whether a correlation between subsidence and clinical outcome exists. AIM:To assess the incidence and...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-018-3490-3
更新日期:2018-04-01 00:00:00
abstract::Intraoperative monitoring during cerebellopontine angle surgery is widely accepted. While techniques which monitor cranial motor nerves are commonly used, monitoring the sensory afferents has been challenging. Considering the reflex arc, blink reflex (BR) might be useful in monitoring the sensory part of the trigemina...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-017-3405-8
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:The type of paraclinoid aneurysm has been used to decide management methods. Our aim was to assess the relation of the types of paraclinoid aneurysms and outcomes after endovascular treatment and the efficiency of present endovascular techniques. METHODS:A retrospective analysis was performed on patients wi...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-013-1830-x
更新日期:2013-11-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to evaluate the effect of endovascular treatment of ruptured dissecting aneurysms of the vertebral artery, the benefits of early embolization, and the predictors of outcomes. CLINICAL MATERIAL AND METHODS:Between September, 2001 and May, 2009, 25 patients with ruptured verteb...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-010-0683-9
更新日期:2010-09-01 00:00:00
abstract:BACKGROUND:Intraoperative vessel visualization is highly desirable, especially when the target is related to or close to main vessels, such as in the skull base and vascular surgery. Contrast-enhanced ultrasound (CEUS) is an imaging technique that allows visualization of tissue perfusion and vascularization through the...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-015-2412-x
更新日期:2015-06-01 00:00:00
abstract::Event related potential recording and psychometric evaluation of cognitive impairment were carried out on 21 patients with brain tumours, 21 patients with severe head injuries and 24 controls. The tumour and trauma patients who met the psychometric inclusion criteria for dementia, but not the non-demented patients, ha...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01812285
更新日期:1986-01-01 00:00:00
abstract:PURPOSE:We aim to analyse the relationship between the quality of information during the decision-making process regarding surgery to treat high-grade gliomas and the level of anxiety of the patients. METHODS:This is a transversal, descriptive and correlational study on 26 patients with a clinical and radiological dia...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-009-0195-7
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:To analyse the occurrence of hardware-related complications in patients with deep brain stimulation (DBS), over a long period of time. METHOD:All patients operated on with DBS at our institution between 1993 and 2002 were followed with respect to adverse events related to the implanted hardware. RESULTS:One...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-005-0576-5
更新日期:2005-10-01 00:00:00
abstract::Regional cerebral blood flow (rCBF) was measured in three patients after relief of elevated intracranial pressure and restoration of normal cerebral perfusion pressure. Two patients, studied within 4 hours after closed head injury were found to have marked impairment of cortical blood flow and elevation of cerebrovasc...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01406289
更新日期:1975-01-01 00:00:00
abstract:BACKGROUND:Mild hypothermia provides cerebral protection against ischaemic insults in various animal models. We compared systemic and cerebral oxygenation between mild hypothermic and normothermic management in 60 patients with acute subarachnoid haemorrhage who underwent clipping of cerebral aneurysms. METHOD:The tem...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s007010070056
更新日期:2000-01-01 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:BACKGROUND:Most scales used to assess prognosis after subarachnoid haemorrhage (SAH) are based on the level of consciousness of the patient. Based on information from a logistic regression model, Ogilvy et al. developed a new grading scheme (Massachussetts General Hospital (MGH) Scale) which applied a simple scoring me...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-004-0417-y
更新日期:2005-01-01 00:00:00