Computed tomographic localization of the precentral gyrus.

Kido, Daniel K.; LeMay, Marjorie; Levinson, Adam W.; Benson, William E.

doi:10.1148/radiology.135.2.7367629

Cited by 123 publications

(80 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4,25 For example, in the report described above by Kido and colleagues, 25 the authors suggest that the knob-like landmark of the precentral gyrus was highly predictive of the primary motor cortex dedicated to control of the hand. The assumption of tight and specific functional-anatomical coupling emerged in part from Penfield's depiction of the homunculus, which was intended as a pictorial simplification of his original findings.…”

Section: Intrinsic Functional Variabilitymentioning

confidence: 99%

“…In patients without intracranial mass lesions, the consistent patterns of sulci and gyri enable clinicians and researchers to use neuroimaging studies to reliably identify neuroanatomical structures. For example, Kido and colleagues 25 identified a constant relationship between the posterior end of the superior frontal sulcus and the precentral sulcus to aid in the localization of the precentral gyrus. Similarly, Yousry and colleagues 60 suggested the precentral gyrus (even more specifically, the hand region of the motor strip) can be identified by the presence of a "knob-like" structure that is shaped like the Greek letters omega or epsilon on axial imaging.…”

Section: Anatomical Variabilitymentioning

confidence: 99%

See 1 more Smart Citation

The reliability of neuroanatomy as a predictor of eloquence: a review

Pouratian

Bookheimer

2010

FOC

View full text Add to dashboard Cite

The adjacency of intracranial pathology to canonical regions of eloquence has long been considered a significant source of potential morbidity in the neurosurgical care of patients. Yet, several reports exist of patients who undergo resection of gliomas or other intracranial pathology in eloquent regions without adverse effects. This raises the question of whether anatomical and intracranial location can or should be used as a means of estimating eloquence. In this review, the authors systematically evaluate the factors that are known to affect anatomical-functional relationships, including anatomical, functional, pathology-related, and modality-specific sources of variability. This review highlights the unpredictability of functional eloquence based on anatomical features alone and the fact that patients should not be considered ineligible for surgical intervention based on anatomical considerations alone. Rather, neurosurgeons need to take advantage of modern technology and mapping techniques to create individualized maps and management plans. An individualized approach allows one to expand the number of patients who are considered for and who potentially may benefit from surgical intervention. Perhaps most importantly, an individualized approach to mapping patients with brain tumors ensures that the risk of iatrogenic functional injury is minimized while maximizing the extent of resection.

show abstract

Section: Intrinsic Functional Variabilitymentioning

confidence: 99%

Section: Anatomical Variabilitymentioning

confidence: 99%

The reliability of neuroanatomy as a predictor of eloquence: a review

Pouratian

Bookheimer

2010

FOC

View full text Add to dashboard Cite

show abstract

“…1,2,[5][6][7][8][9][10][11][12] Previously, sectional CT and MR imaging were evaluated for landmarks that were only visible on axial or sagittal image orientations. Therefore, this approach often required the time-consuming evaluation of more images with different orientations.…”

mentioning

confidence: 99%

The U Sign: Tenth Landmark to the Central Region on Brain Surface Reformatted MR Imaging

Wagner

Jurcoane

Hattingen

2012

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

BACKGROUND AND PURPOSE:Identification of the central region is of special importance to avoid neurologic deficits in brain surgery. Brain surface reformatted images (Mercator view) map the frontoparietal brain surface in 1 view and provide a synopsis of the most important landmarks. In this view, the U-shaped subcentral gyrus appears as a distinctive anatomic structure enclosing the Sylvian end of the central sulcus. The purpose of this study was to add the subcentral gyrus as a new landmark to the central region (U sign) and to compare its frequency and applicability with common landmarks in healthy hemispheres.

show abstract

“…O valor médio da intensidade do estímulo necessário para provocar resposta motora foi significativamente maior entre os que utilizaram anestesia com propofol de forma contínua, 60 Arq Neuropsiquiatr 2005;63 (1) quando comparados com aqueles em que o propofol foi feito de forma intermitente.…”

Section: Discussionunclassified

Mapeamento da área motora durante a cirurgia de tumor intracraniano: fatores que podem modificar a intensidade da estimulação

Brainer-Lima

Brainer-Lima²,

Brandt

et al. 2005

Arq. Neuro-Psiquiatr.

View full text Add to dashboard Cite

RESUMO -O mapeamento com estimulação direta do córtex cerebral foi utilizado quando o tumor estava próximo ou infiltrava o lobo central. Objetivo: Avaliar interferências na técnica de estimulação eletrica direta do córtex e substância branca, sob anestesia geral, durante cirurgia para tumor cerebral relacionado ao lobo central. Método: Foram estudados 42 pacientes operados de junho de 2000 a junho de 2003. Os fatores que modificaram a intensidade da estimulação necessaria para localizar a área motora durante a cirurgia foram estudados. Resultados: A intensidade necessária do estimulo foi maior entre os pacientes com déficit motor antes da cirurgia (p=0,425), edema na ressonância magnetica (p=0,468) e anestesia com proporfol contínuo (p=0,001). Conclusão: O mapeamento funcional do lobo central durante a cirurgia foi prejudicado pelo deficit motor acentuado, edema cerebral e anestesia com propofol contínuo. A tomografia computadorizada (TC) 1 e a ressonância magnética (RM) 2 permitem a identificação anatomica do sulco central e o giro pré-central na superfície cortical. Os limites anatômicos antecipam o risco, porém respeita-los não é suficiente para garantir a integridade funcional da área motora 3 . PALAVRAS-CHAVEApesar das informações geradas pela TC, RM, RM funcional e RM para identificação das vias subcorticais (tractografia), principalmente com os e q u ipamentos da neuronavegação sem frame 4 , ainda não existe um padrão absoluto de segurança para guiar a cirurgia em tumores relacionados ao giro p r é -central, justificando, assim, a investigação das téc-nicas para mapeamento do cérebro relacionado aos tumores intracranianos. Na presente investigação, foram analisadas os achados cirúrgicos do mapeamento com estimulação elétrica direta do córtex e substância branca, sob anestesia geral durante a cirurgia de tumor c e r ebral relacionado ao lobo central. Em todos foi identificada a relação anatômica ou funcional do tumor com o sulco central. A intimidade anatômica do tumor com o giro pré-central na RM com desvio ou infiltração foi o criterio de inclusão, mesmo

show abstract

Computed tomographic localization of the precentral gyrus.

Cited by 123 publications

References 0 publications

The reliability of neuroanatomy as a predictor of eloquence: a review

The reliability of neuroanatomy as a predictor of eloquence: a review

The U Sign: Tenth Landmark to the Central Region on Brain Surface Reformatted MR Imaging

Mapeamento da área motora durante a cirurgia de tumor intracraniano: fatores que podem modificar a intensidade da estimulação

Contact Info

Product

Resources

About