Abstract:
:Optical imaging of intrinsic signals (OIS) is a well-established neuroimaging modality by which functional cortical activity is mapped by detecting activity-related changes in cortical light reflectance. Light reflectance changes are detected by a charged-coupled device camera that captures images of the exposed cortex both at rest and during activity. Although to date OIS has only been used for research purposes, intraoperative OIS (iOIS) holds promise as a clinical mapping tool. In general, iOIS demonstrates good spatial correlation with electrocortical stimulation mapping (ECSM) and other electrophysiological modalities. Additionally, iOIS offers high spatial resolution (in microns), does not make contact with the surface of the brain, and introduces no potentially harmful compounds. Moreover, mapping is relatively rapid. The authors review the potential contribution of iOIS to the intraoperative environment. Specifically, they review iOIS methodology, discuss signal origin, compare OIS with other functional mapping modalities, and explain its potential benefits and limitations. They propose that iOIS may, in the future, be used in conjunction with ECSM to improve the resolution and accuracy of intraoperative mapping, decrease total time of intraoperative mapping, and possibly improve neurological outcomes. Additional studies will be required to quantify the sensitivity and specificity of optical maps relative to ECSM before it can be implemented clinically.
journal_name
Neurosurg Focusjournal_title
Neurosurgical focusauthors
Pouratian N,Cannestra AF,Martin NA,Toga AWdoi
10.3171/foc.2002.13.4.2subject
Has Abstractpub_date
2002-10-15 00:00:00pages
e1issue
4issn
1092-0684pii
130401journal_volume
13pub_type
杂志文章,评审abstract::The retrosigmoid approach is a work-horse approach to the cerebellopontine angle (CPA), providing access from the foremen magnum to the tentorium. Indications for this approach are variable such as resection of meningiomas, acoustic neuromas and epidermoid tumors, treatment of vascular lesions of vertebrobasilar syste...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2014.V1.FOCUS13445
更新日期:2014-01-01 00:00:00
abstract::OBJECT The relative benefit of repeat surgery for recurrent glioblastoma is unclear, in part due to the very heterogeneous nature of the patient population and the effect of clinician philosophy on the duration and aggressiveness of treatment. The authors sought to investigate the role of time to last recurrence on pa...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/2014.12.FOCUS14726
更新日期:2015-03-01 00:00:00
abstract::There is evidence that the neurosurgical procedure of cranioplasty is as ancient as its better-known counterpart, trephination. With origins in pre-Incan Peru, cranioplasty remains an important reconstructive procedure for modern craniofacial surgery teams to master. Solutions to the often challenging problem of repai...
journal_title:Neurosurgical focus
pub_type: 历史文章,杂志文章,评审
doi:10.3171/2014.1.FOCUS13504
更新日期:2014-04-01 00:00:00
abstract::OBJECTIVE The performance of surgery for spinal metastases is rapidly increasing. Different surgical procedures, ranging from stabilization alone to stabilization combined with corpectomy, are thereby performed for various indications. Little is known about the impact of these different procedures on patient quality o...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2016.6.FOCUS16150
更新日期:2017-01-01 00:00:00
abstract::Traumatic intracranial aneurysms are rare, occurring in fewer than 1% of patients with cerebral aneurysms. They can occur following blunt or penetrating head trauma and are more common in the pediatric population. Traumatic aneurysms can be categorized histologically as true, false, or mixed, with false aneurysms bein...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2000.8.1.1829
更新日期:2000-01-15 00:00:00
abstract::This is the case of a man in his 40s who suffered sudden collapse into a deep coma as a result of a ruptured arteriovenous malformation (AVM) feeding artery aneurysm within the lateral ventricle. The ruptured aneurysm was successfully treated with Onyx embolization of the feeding pedicle. The AVM and the feeding arter...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2017.7.FocusVid.17127
更新日期:2017-07-01 00:00:00
abstract::Peritumoral cysts (those arising immediately adjacent to the tumor mass) are frequently associated with benign and malignant tumors of the brain and spinal cord (syringomyelia). The cystic component of central nervous system (CNS) tumors and associated peritumoral cysts are often the cause of clinical symptoms. Becaus...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2007.22.5.10
更新日期:2007-05-15 00:00:00
abstract::Hemivertebrae are a common cause of congenital scoliosis. Depending on their location and the magnitude of the resultant deformity, they may be asymptomatic or require treatment. In the past, treatment has focused on prevention of deformity progression in growing children. Little has been written about congenital scol...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/foc.2003.14.2.10
更新日期:2003-02-15 00:00:00
abstract::The goals of this study were to analyze the effect of pallidotomy on parkinsonian tremor and to ascertain whether an association exists between microrecording findings and tremor outcome. Forty-four patients with Parkinson's disease (PD) who had drug-induced dyskinesia, bradykinesia, rigidity, and tremor underwent pos...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/foc.1997.2.3.5
更新日期:1997-03-15 00:00:00
abstract::Arteriovenous malformation (AVM) presenting with epilepsy significantly impacts patient quality of life, and it should be considered very much a seizure disorder. Although hemorrhage prevention is the primary treatment aim of AVM surgery, seizure control should also be at the forefront of therapeutic management. Sever...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2020.1.FOCUS19899
更新日期:2020-04-01 00:00:00
abstract::Sacral chordomas are relatively rare, locally invasive, malignant neoplasms. Although metastasis is infrequent at presentation, the prognosis for patients with chordoma of the sacrum is reported to be poor and attributable in most cases to intralesional resection. The value of adjuvant treatment is uncertain, and rese...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2003.15.2.9
更新日期:2003-08-15 00:00:00
abstract:OBJECT:In this study the authors address the efficacy and safety of frameless stereotaxy in transsphenoidal surgery. METHODS:One thousand transsphenoidal operations were performed at the authors' institution between June 2000 and July 2005. This series consists of a retrospective review of 176 patients entered in a pr...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/foc.2006.20.2.10
更新日期:2006-02-15 00:00:00
abstract::Tentorial dural arteriovenous fistulae (TDAVFs) are complex lesions with the arteriovenous fistula located between the leaves of the tentorium cerebelli. While a large portion of dural arteriovenous fistulae are treated endovascularly, TDAVF may require additional microsurgical treatment given their high risk of hemor...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2016.1.FocusVid.15420
更新日期:2016-01-01 00:00:00
abstract:OBJECT:Currently, reliable low-cost and noninvasive techniques to assess cerebral perfusion in the operating room are not available. The authors report on their first clinical experience with laser speckle contrast analysis (LASCA) as a complementary imaging tool for the noninvasive and dynamic assessment of cerebral b...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2009.8.FOCUS09148
更新日期:2009-10-01 00:00:00
abstract:OBJECT:Intraneural ganglia are nonneoplastic mucinous cysts contained within the epineurium of peripheral nerves. Their pathogenesis has been controversial. Historically, the majority of authors have favored de novo formation (degenerative theory). Because of their rarity, intraneural ganglia affecting the upper limb h...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/FOC.2009.26.2.E10
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:Frailty has been recognized as a predictor of adverse surgical outcomes across multiple surgical disciplines, but until now the relationship between frailty and intracranial meningioma surgery has not been studied. The goal of the present study was to determine the relationship between increasing frailty (det...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2020.7.FOCUS20324
更新日期:2020-10-01 00:00:00
abstract::Herpes simplex encephalitis is a common viral encephalitis associated with significant morbidity and mortality if not diagnosed and treated early. Neurosurgery may be an impetus for viral reactivation, either from direct nerve manipulation or high-dose steroids often administered during cases. The authors present the ...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/2019.5.FOCUS19281
更新日期:2019-08-01 00:00:00
abstract::Focal cortical dysplasias (FCDs) are congenital malformations of cortical development that are a frequent cause of refractory epilepsy in both children and adults. With advances in structural and functional neuroimaging, these lesions are increasingly being identified as a cause of intractable epilepsy in patients und...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/FOC/2008/25/9/E6
更新日期:2008-09-01 00:00:00
abstract::OBJECTIVE Sagittal malalignment decreases patients' quality of life and may require surgical correction to achieve realignment goals. High-risk posterior-based osteotomy techniques are the current standard treatment for addressing sagittal malalignment. More recently, anterior lumbar interbody fusion, anterior column ...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2017.8.FOCUS17423
更新日期:2017-12-01 00:00:00
abstract:OBJECT:The aim of this study was to evaluate the effectiveness of an educational intervention on concussion knowledge within a sample of junior fourth-tier ice hockey players. METHODS:A prospective cohort study, called the Hockey Concussion Education Project, was conducted during 1 junior ice hockey regular season (20...
journal_title:Neurosurgical focus
pub_type: 杂志文章,随机对照试验
doi:10.3171/2010.9.FOCUS10187
更新日期:2010-11-01 00:00:00
abstract::Arteriovenous fistulae of the internal maxillary artery are exceedingly rare, with less than 30 cases reported in the literature. Most of these lesions are congenital, iatrogenic, or posttraumatic. The most common presentation of internal maxillary artery fistulae is pulsatile tinnitus and headache. Because these lesi...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2019.1.FocusVid.18479
更新日期:2019-01-01 00:00:00
abstract::Degenerative lumbar spinal stenosis is a common condition affecting middle-aged and elderly people. Significant controversy exists concerning the appropriate indications for fusion following decompressive surgery. The purpose of this report is to compare the clinical outcomes of patients who were and were not treated ...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/foc.1997.3.2.5
更新日期:1997-08-15 00:00:00
abstract::Brain-computer interfaces (BCIs) provide a way for the brain to interface directly with a computer. Many different brain signals can be used to control a device, varying in ease of recording, reliability, stability, temporal and spatial resolution, and noise. Electrocorticography (ECoG) electrodes provide a highly rel...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2020.4.FOCUS20185
更新日期:2020-07-01 00:00:00
abstract:OBJECT:Parallel advancements in image guidance technology and minimal access techniques continue to push the frontiers of minimally invasive spine surgery (MISS). While traditional intraoperative imaging remains widely used, newer platforms, such as 3D-fluoroscopy, cone-beam CT, and intraoperative CT/MRI, have enabled ...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/2013.5.FOCUS13150
更新日期:2013-08-01 00:00:00
abstract::Germ line and somatic mutations in the neurofibromatosis Type 2 (NF2) tumor suppressor gene predispose individuals to tumors of the nervous system, including schwannomas and meningiomas. Since identification of the NF2 gene more than a decade ago, a large body of information has been collected on the nature and conseq...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2005.19.5.7
更新日期:2005-11-15 00:00:00
abstract:OBJECT:This review summarizes the continuous study of low-power laser radiation treatment of a severely injured peripheral nerve. Laser phototherapy was applied as a supportive factor for accelerating and enhancing axonal growth and regeneration after injury or a reconstructive peripheral nerve procedure. In nerve cell...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/FOC.2009.26.2.E8
更新日期:2009-02-01 00:00:00
abstract::Object In the last decade the indications for the endoscopic endonasal approach have been progressively expanded to include lesions that have not been traditionally considered amenable to resection through the transsphenoidal route. In this study, the authors analyze their experience with hypothalamic gliomas treated ...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2014.7.FOCUS14317
更新日期:2014-01-01 00:00:00
abstract::OBJECT Although the length of hospital stay is often used as a measure of quality of care, data evaluating the predictors of extended hospital stay after craniotomy for tumor are limited. The goals of this study were to use multivariate regression to examine which preoperative characteristics and postoperative complic...
journal_title:Neurosurgical focus
pub_type: 杂志文章
doi:10.3171/2015.10.FOCUS15386
更新日期:2015-12-01 00:00:00
abstract::Seizures and epilepsy are frequent clinical manifestations of cerebral cavernous malformations (CCMs) and represent the most common symptomatic presentation of supratentorial lesions. Clinicians often diagnose CCMs in patients after a first seizure, or in some cases after obtaining neuroimaging studies in patients suf...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2006.21.1.8
更新日期:2006-07-15 00:00:00
abstract:OBJECT:The goal of this study was to review the management of intra- and extradural ependymomas. Spinal ependymomas most commonly occur as intramedullary tumors throughout the spinal axis. In the lumbosacral region, ependymomas are most commonly associated with the conus medullaris and cauda equina, but can also occur ...
journal_title:Neurosurgical focus
pub_type: 杂志文章,评审
doi:10.3171/foc.2003.15.5.13
更新日期:2003-11-15 00:00:00