Abstract:
OBJECT:Various bibliometric indices based on the citations accumulated by scholarly articles, including the h-index, g-index, e-index, and Google's i10-index, may be used to evaluate academic productivity in neurological surgery. The present article provides a comprehensive assessment of recent academic publishing output from 103 US neurosurgical residency programs and investigates intradepartmental publishing equality among faculty members. METHODS:Each institution was considered a single entity, with the 5-year academic yield of every neurosurgical faculty member compiled to compute the following indices: ih(5), cumulative h, ig(5), ie(5), and i10(5) (based on publications and citations from 2009 through 2013). Intradepartmental comparison of productivity among faculty members yielded Gini coefficients for publications and citations. National and regional comparisons, institutional rankings, and intradepartmental publishing equality measures are presented. RESULTS:The median numbers of departmental faculty, total publications and citations, ih(5), summed h, ig(5), ie(5), i10(5), and Gini coefficients for publications and citations were 13, 82, 716, 12, 144, 23, 16, 17, 0.57, and 0.71, respectively. The top 5 most academically productive neurosurgical programs based on ih(5)-index were University of California, San Francisco, University of California, Los Angeles, University of Pittsburgh, Brigham & Women's Hospital, and Johns Hopkins University. The Western US region was most academically productive and displayed greater intradepartmental publishing equality (median ih[5]-index = 18, median Ginipub = 0.56). In all regions, large departments with relative intradepartmental publishing equality tend to be the most academically productive. Multivariable logistic regression analysis identified the ih(5)-index as the only independent predictor of intradepartmental publishing equality (Ginipub ≤ 0.5 [OR 1.20, 95% CI 1.20-1.40, p = 0.03]). CONCLUSIONS:The ih(5)-index is a novel, simple, and intuitive metric capable of accurately comparing the recent scholarly efforts of neurosurgical programs and accurately predicting intradepartmental publication equality. The ih(5)-index is relatively insensitive to factors such as isolated highly productive and/or no longer academically active senior faculty, which tend to distort other bibliometric indices and mask the accurate identification of currently productive academic environments. Institutional ranking by ih(5)-index may provide information of use to faculty and trainee applicants, research funding institutions, program leaders, and other stakeholders.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Taylor DR,Venable GT,Jones GM,Lepard JR,Roberts ML,Saleh N,Sidiqi SK,Moore A,Khan N,Selden NR,Michael LM 2nd,Klimo P Jrdoi
10.3171/2014.10.JNS141025subject
Has Abstractpub_date
2015-09-01 00:00:00pages
547-60issue
3eissn
0022-3085issn
1933-0693journal_volume
123pub_type
杂志文章abstract:OBJECTIVE:Stereotactic radiosurgery (SRS) is a commonly employed treatment modality for brain arteriovenous malformations (AVMs). However, due to the low frequency of delayed cyst formation after AVM SRS, as well as the prolonged time interval between treatment and its occurrence, the characteristics of post-SRS cyst f...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2017.6.JNS17559
更新日期:2018-10-01 00:00:00
abstract:OBJECT:The role of functional magnetic resonance (fMR) imaging has become increasingly important in the presurgical mapping of gray matter. Neurosurgical interventions often involve fiber bundles that connect critical functional areas. Recently, diffusion-tensor (DT) imaging has enabled the visualization of fiber bundl...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.99.6.1018
更新日期:2003-12-01 00:00:00
abstract::Juvenile active ossifying fibroma is a rare lesion seldom seen by neurosurgeons. It originates in the paranasal sinuses during childhood, grows slowly, and encroaches on adjacent orbital and cranial compartments. In the past 3 years, four patients with this lesion were seen (three men and one woman; mean age 28 years)...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.86.2.0279
更新日期:1997-02-01 00:00:00
abstract::OBJECTIVE Vitamin D deficiency has been associated with a variety of negative outcomes in critically ill patients, but little focused study on the effects of hypovitaminosis D has been performed in the neurocritical care population. In this study, the authors examined the effect of vitamin D deficiency on 3-month outc...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2017.2.JNS163037
更新日期:2018-06-01 00:00:00
abstract::Delayed nonhemorrhagic encephalopathy following mild head trauma is a rare condition with an unknown etiology. The few cases reported in the literature are in young adults, all of them in the era before computerized tomography (CT) became available, and all had a devastating clinical course with multifocal ischemia or...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1989.71.4.0608
更新日期:1989-10-01 00:00:00
abstract::By the time Harvey Cushing entered medical school, nerve reconstruction techniques had been developed, but peripheral nerve surgery was still in its infancy. As an assistant surgical resident influenced by Dr. William Halsted, Cushing wrote a series of reports on the use of cocaine for nerve blocks. Following his resi...
journal_title:Journal of neurosurgery
pub_type: 传,历史文章,杂志文章
doi:10.3171/2010.11.JNS10804
更新日期:2011-05-01 00:00:00
abstract::Percutaneous transluminal angioplasty for treatment of intracerebral arterial vasospasm is now being performed in selected cases. Thirty-six vascular territories in 13 patients, ranging in age from 15 to 73 years, have been treated with a new silicone microballoon device. This balloon has allowed mechanical dilatation...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1989.71.5.0648
更新日期:1989-11-01 00:00:00
abstract:OBJECT:There is no description of the change in the posterior cerebral artery (PCA) in the diagnostic criteria of moyamoya disease (MMD). However, PCAs are often involved in the clinical setting, and an understanding of the significance of PCA lesions is therefore of great importance when evaluating the disease progres...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2013.6.JNS122099
更新日期:2013-10-01 00:00:00
abstract::The authors report on a 17-year-old boy with cervical myelopathy from dilated epidural veins due to cerebrospinal fluid (CSF) overdrainage. The patient had a long-standing subdural-peritoneal shunt and presented with incapacitating spastic tetraparesis. Magnetic resonance imaging revealed significant cervical spinal c...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/ped.2007.106.3.227
更新日期:2007-03-01 00:00:00
abstract::An unusual case of cerebral actinomycosis of the Gasserian ganglion is reported. The location and the pathological diagnosis of granuloma are both extremely rare. The literature is briefly reviewed with special reference to similar reports. The manner of spread and the course of the disease are described. The present ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1981.54.4.0553
更新日期:1981-04-01 00:00:00
abstract::The cases of 127 consecutive patients with subarachnoid hemorrhage (SAH), in whom cerebral panangiography revealed no cause for the bleeding nor any sign of an intraparenchymatous hemorrhage, were reviewed in a study of the long-term prognosis and the possible prognostic factors in this condition. Data for all 127 pat...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1985.63.3.0349
更新日期:1985-09-01 00:00:00
abstract:OBJECT:The effectiveness and safety of radiosurgery for small- to medium-sized cerebral arteriovenous malformations (AVMs) have been well established. However, the management for large cerebral AVMs remains a great challenge to neurosurgeons. In the past 5 years the authors performed preplanned staged radiosurgery to t...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/JNS/2008/109/12/S11
更新日期:2008-12-01 00:00:00
abstract:OBJECT:Occipital encephaloceles are relatively frequently encountered. Many investigators have addressed the embryogenesis of these formations, but the dural system has never before been studied. In this retrospective analysis the authors sought to gain a better understanding of the origins of these defects. METHODS:T...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1998.89.5.0738
更新日期:1998-11-01 00:00:00
abstract::Lumbar cerebrospinal fluid (CSF) pressure was recorded in 116 adult neurosurgical patients in the lateral and sitting positions. The level of zero CSF pressure while in the sitting position (ZPS) and hydrostatic indifferent point (HIP) for lateral and sitting positions were determined and referred to the craniospinal ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1976.44.6.0698
更新日期:1976-06-01 00:00:00
abstract:OBJECT:Pituitary adenomas are usually benign tumors; however, some behave aggressively and metastasize. Until now, no specific marker of aggressive behavior or malignancy has been found. The polysialylated neural cell adhesion molecule (NCAM), which is highly expressed in embryonic tissues such as the brain and pituita...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.98.5.1084
更新日期:2003-05-01 00:00:00
abstract::To investigate overcrowding in the posterior cranial fossa as the pathogenesis of adult-type Chiari malformation, the authors studied the morphology of the brainstem and cerebellum within the posterior cranial fossa (neural structures consisting of the midbrain, pons, cerebellum, and medulla oblongata) as well as the ...
journal_title:Journal of neurosurgery
pub_type: 临床试验,杂志文章
doi:10.3171/jns.1997.86.1.0040
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:To investigate the risk of bleeding from unruptured cerebral aneurysms (UCAs), previous studies have used Kaplan-Meier analyses without treating the definitive treatment as a competing risk event, which may underestimate the rupture rate. The authors analyzed the survival of patients with UCAs alongside the o...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2018.11.JNS181781
更新日期:2019-03-08 00:00:00
abstract::Hemangiopericytoma is a vascular neoplasm consisting of capillaries outlined by an intact basement membrane that separates the endothelial cells of the capillaries from the spindle-shaped tumor cells in the extravascular area. These neoplasms are found in soft tissues but have rarely been shown to involve the spinal c...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1978.49.6.0914
更新日期:1978-12-01 00:00:00
abstract:OBJECT:Application of sensitive infrared imaging is ideally suited to observe blood vessels and blood flow in exposed organs, including the brain. Temporary vascular occlusion is an important part of neurosurgery, but the capacity to monitor the effects of these occlusions in real time is limited. In surgical procedure...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2002.96.5.0918
更新日期:2002-05-01 00:00:00
abstract::The authors describe a case of nontraumatic atlantoaxial dislocation secondary to acute rheumatic fever, in which there appeared to be fibrous fusion between the axis and the atlas in the subluxed position. The dislocation was reduced by means of combined traction and steroid therapy. Fibrous fusion occurred in the re...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1982.56.1.0139
更新日期:1982-01-01 00:00:00
abstract::The present study investigates the hematological reaction to arterial injury during the first 10 minutes after endarterectomy in dogs to determine if heparin reversal during this early period predisposes to thrombus formation. Known platelet physiology would predict that heparinization during this early period would b...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1983.58.5.0708
更新日期:1983-05-01 00:00:00
abstract:OBJECT:Little information is available on staged Gamma Knife surgery (GKS) with an interval of 3 years or more when used to treat arteriovenous malformations (AVMs) with volumes larger than 10 cm(3). The goal of this study was to increase knowledge in this area by reporting the authors' experience. METHODS:The authors...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2012.6.GKS12757
更新日期:2012-12-01 00:00:00
abstract::The authors conducted a study to determine a way of overcoming the poor-quality demonstration of choroidal neovascularization (CNV) associated with age-related macular degeneration (AMD) on conventional magnetic resonance (MR) imaging studies. The poor MR imaging demonstration of CNV in patients with AMD makes the use...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2005.102.s_supplement.0200
更新日期:2005-01-01 00:00:00
abstract::The translabyrinthine route or an extension of it was used to remove 150 acoustic nerve tumors. The mortality was 2% and the morbidity low. Preservation of the facial nerve was achieved in 100% of the small and 80% of the medium-sized tumors, but in only 20% of the large growths. The complications encountered are disc...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.52.2.0210
更新日期:1980-02-01 00:00:00
abstract::A laboratory technique that allows strain measurements of the skull is described. Holographic interferometry allows the entire surface displacement of the skull to be mapped within 1/10 of the wavelength of light. Holographic interferometric pictures are presented following various stress applications to the skull. Th...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.52.6.0825
更新日期:1980-06-01 00:00:00
abstract:OBJECT:Previous small studies disagree about which clinical risk factors influence ependymoma incidence. The authors analyzed a large, population-based cancer registry to examine the relationship of incidence to patient age, sex, race, and tumor location, and to determine incidence trends over the past 3 decades. METH...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2008.9.JNS08117
更新日期:2009-04-01 00:00:00
abstract:OBJECT:Surgery in the insular region is considered challenging because of its vascular relationships, the proximity of functional structures, and its deep location in the sylvian fissure. The authors report the incidence and consequences of ischemic lesions after operculoinsular corticectomy for refractory epilepsy. M...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.10.JNS141246
更新日期:2015-06-01 00:00:00
abstract::The authors report a case of transverse myelitis caused by Schistosoma mansoni. Although this is a treatable disease if diagnosed in the early stage, it is very rarely seen in developed countries and can result in complications if diagnosis is delayed. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.82.6.1065
更新日期:1995-06-01 00:00:00
abstract:OBJECT:Neurocan is a major form of growth-inhibitory molecule (growth-IM) that suppresses axonal regeneration after neural injury. Bone marrow stromal cells (MSCs) have been shown to inhibit neurocan expression in vitro and in animal models of cerebral ischemia. Therefore, the present study was designed to investigate ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2013.12.JNS131362
更新日期:2014-05-01 00:00:00
abstract:OBJECT:Endothelial tight junction (TJ) expression is mostly absent in cerebral cavernous malformations (CMs), which causes increased perilesional erythrocyte and fluid oozing. However, in a subset of CM lesions, foci of preserved TJ staining are observed along endothelial cell contacts. The clinical relevance of this f...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.6.JNS132775
更新日期:2014-09-01 00:00:00