Results 11 to 20 of about 13,353 (214)

Assessing structural integrity of the pyramidal tracts with diffusion spectrum imaging to predict postoperative motor function in pediatric epilepsy patients with hemispherectomy [PDF]

Acta Epileptologica, 2023
Background Hemispherectomy is an effective treatment option for patients with drug-resistant epilepsy caused by hemispheric lesions. However, patients often have deterioration of their motor functions postoperatively. Diffusion spectrum imaging (DSI) was
Huaqiang Zhang, Penghu Wei, Chao Lu, Zhenming Wang, Xiaotong Fan, Yongzhi Shan, Guoguang Zhao   +6 more
doaj   +2 more sources

Clinical and magnetic resonance imaging features in acute ischemic stroke with early wallerian degeneration: a case-control study [PDF]

BMC Neurology
Background In advanced stages, Wallerian degeneration (WD) after cerebral infarction appears as an abnormality in the descending corticospinal tract on T2-weighted images. However, early WD in this region is detectable via diffusion-weighted imaging (DWI)
Kazumichi Ota, Yoshihiko Nakazato, Kazuhide Seo, Hitoshi Kawasaki, Mariko Okada, Takashi Mithufuji, Yasuo Ito, Toshimasa Yamamoto   +7 more
doaj   +2 more sources

Characteristics of the aberrant pyramidal tract in comparison with the pyramidal tract in the human brain [PDF]

BMC Neuroscience, 2011
Abstract Background The aberrant pyramidal tract (APT) refers to the collateral pathway of the pyramidal tract (PT) through the medial lemniscus in the midbrain and pons. Using diffusion tensor tractography (DTT), we investigated the characteristics of the APT in comparison with the PT in the normal human brain.
Kwon Yong, Kim Saeyoon, Chang Min, Son Su, Kwon Hyeok, Jang Sung   +5 more
openaire   +3 more sources

Horizontal gaze palsy with progressive scoliosis: a case report with magnetic resonance tractography and electrophysiological study

BMC Neurology, 2018
Background Horizontal gaze palsy with progressive scoliosis (HGPPS) is a rare autosomal recessive congenital anomaly characterized by horizontal gaze limitation and progressive scoliosis.
Chi-Wei Lin, Chung-Ping Lo, Min-Chien Tu
doaj   +1 more source

Motor hemiplegia and the cerebral organization of movement in man: II. The myth of the human extrapyramidal system

Arquivos de Neuro-Psiquiatria, 1989
Following a brief review of the concept of extrapyramidal system, clinical and anatomic evidence is presented against its relative prominence in man.
R. Oliveira-Souza
doaj   +1 more source

Сharacteristics of nervous system damage in children born with a very low and extremely low birthweight and perinatal hypoxic brain injury

Кубанский научный медицинский вестник, 2020
Aim. To determine the frequency of structural damage to the pyramidal tract in the region of crus posterius capsulae internae in children with a birthweight of less than one and a half kilograms with perinatal hypoxic damage to the nervous system using ...
E. I. Kleshchenko, M. P. Yakovenko, D. A. Kayumova, M. G. Kulagina, E. V. Borovikova, E. P. Apalkova, A. F. Komarov   +6 more
doaj   +1 more source

Pyramidal and Proprioceptive Dysfunctions as the Main Neurologic Features In Symptomatic Type I Chiari Malformation Patients

Brazilian Neurosurgery, 2018
Objective Broader access to magnetic resonance imaging (MRI) has increased the diagnosis of tonsillar ectopia, with most of these patients being asymptomatic.
Bruno Corrêa de Albuquerque Leimig, Claudio Henrique Fernandes Vidal, Marcelo Moraes Valença, Joacil Carlos da Silva, Walter de Freitas Matias Filho   +4 more
doaj   +1 more source

Uncrossed corticospinal tracts in a patient with ichthyosis and hemiparesis: a case report

BMC Neurology, 2020
Background Anomalies of pyramidal tract decussation are rare phenomena that can be caused by ectodermal dysplasia. Herein, we describe a patient with ichthyosis who exhibited ipsilateral hemiparesis after stroke and whose neuroimaging results showed ...
Huijia Yang, Hongwei Zhou, Jing Miao
doaj   +1 more source

Multimodal MRI-based study in patients with SPG4 mutations. [PDF]

PLoS ONE, 2015
Mutations in the SPG4 gene (SPG4-HSP) are the most frequent cause of hereditary spastic paraplegia, but the extent of the neurodegeneration related to the disease is not yet known.
Thiago J R Rezende, Milena de Albuquerque, Gustavo M Lamas, Alberto R M Martinez, Brunno M Campos, Raphael F Casseb, Cynthia B Silva, Lucas M T Branco, Anelyssa D'Abreu, Iscia Lopes-Cendes, Fernando Cendes, Marcondes C França   +11 more
doaj   +1 more source

Detection of spinal long fiber tract degeneration in HSP: Improved diffusion tensor imaging

NeuroImage: Clinical, 2022
Spinal diffusion tensor imaging (sDTI) is still a challenging technique for selectively evaluating anatomical areas like the pyramidal tracts (PT), dorsal columns (DC), and anterior horns (AH) in clinical routine and for reliably quantifying white matter
Tobias Lindig, Christer Ruff, Tim W. Rattay, Stephan König, Ludger Schöls, Rebecca Schüle, Thomas Nägele, Ulrike Ernemann, Uwe Klose, Benjamin Bender   +9 more
doaj   +1 more source