Results 31 to 40 of about 45,897 (233)

Analysis of current density and related parameters in spinal cord stimulation [PDF]

, 1998
A volume conductor model of the spinal cord and surrounding anatomical structures is used to calculate current (and current density) charge per pulse, and maximum charge density per pulse at the contact surface of the electrode in the dorsal epidural ...
Boom, Herman B.K., Holsheimer, Jan, Wesselink, Wilbert A.   +2 more
core   +3 more sources

Estudo micro-mesoscópico da parede lateral do seio cavernoso humano Human cavernous sinus: micro-mesoscopic study of the lateral wall

Arquivos de Neuro-Psiquiatria, 1996
Os autores estudam as estruturas contidas no seio cavernoso humano, tanto em seu interior como na sua parede lateral, através de cortes frontais seriados espessos. Mostram a importância desta parede que é freqüentemente usada como via de acesso cirúrgico
Renato Paulo Chopard, Guilherme A. Lucas, Alessandra Venosa   +2 more
doaj   +1 more source

Extended endoscopic endonasal transsphenoidal approach to the suprasellar area: Anatomic considerations - Part I [PDF]

, 2008
INTRODUCTION: Interest in using the extended endonasal transsphenoidal approach for management of suprasellar lesions, with either a microscopic or endoscopic technique, has increased in recent years.
CAPPABIANCA, PAOLO, CAVALLO, LUIGI MARIA, DE DIVITIIS, ORESTE, ESPOSITO, FELICE, IACONETTA, GIORGIO, K. Talat, M. Tschabitscher, MESSINA, ANDREA, S. Aydin   +8 more
core   +1 more source

The Strain Rates in the Brain, Brainstem, Dura, and Skull under Dynamic Loadings

Mathematical and Computational Applications, 2020
Knowing the precise material properties of intracranial head organs is crucial for studying the biomechanics of head injury. It has been shown that these biological tissues are significantly rate-dependent; hence, their material properties should be ...
Mohammad Hosseini-Farid, MaryamSadat Amiri-Tehrani-Zadeh, Mohammadreza Ramzanpour, Mariusz Ziejewski, Ghodrat Karami   +4 more
doaj   +1 more source

Biomechanics of vascular areas of the human cranial dura mater

Journal of the Mechanical Behavior of Biomedical Materials, 2022
Accurate biomechanical properties of the human cranial dura mater are paramount for computational head models, artificial graft developments and biomechanical basic research. Yet, it is unclear whether areas of the dura containing meningeal vessels biomechanically differ from avascular areas. Here, 244 dura mater samples with or without vessels from 32
Q. Pearcy, M. Jeejo, M. Scholze, J. Tomlinson, J. Dressler, M. Zhang, J. Zwirner   +6 more
openaire   +3 more sources

Estimation of fiber diameters in the spinal dorsal columns from clinical data [PDF]

, 1998
Lack of human morphometric data regarding the largest nerve fibers in the dorsal columns (DCs) of the spinal cord has lead to the estimation of the diameters of these fibers from clinical data retrieved from patients with a new spinal cord stimulation ...
Boom, Herman B.K., Gybels, Jan M., Holsheimer, Jan, King, Gary W., Nuttin, Bart, Sutter, Paul de, Wesselink, Wilbert A.   +6 more
core   +3 more sources

Single-arm, open-label, multicentre first in human study to evaluate the safety and performance of dural sealant patch in reducing CSF leakage following elective cranial surgery: the ENCASE trial

BMJ Open, 2021
Objective The dural sealant patch (DSP) is designed for watertight dural closure after cranial surgery. The goal of this study is to assess, for the first time, safety and performance of the DSP as a means of reducing cerebrospinal fluid (CSF) leakage in
Luca Regli, Menno R Germans, Jorn Fierstra, Andrew Carlson, Tristan Van Doormaal, Mariska Sie, Bart Brouwers, Jan Willem Dankbaar, Paul Depauw, Pierre Robe   +9 more
doaj   +1 more source

Large-scale morphometry of the subarachnoid space of the optic nerve

Fluids and Barriers of the CNS, 2023
Background The meninges, formed by dura, arachnoid and pia mater, cover the central nervous system and provide important barrier functions. Located between arachnoid and pia mater, the cerebrospinal fluid (CSF)-filled subarachnoid space (SAS) features a ...
Diego Rossinelli, Hanspeter Esriel Killer, Peter Meyer, Graham Knott, Gilles Fourestey, Vartan Kurtcuoglu, Corina Kohler, Philipp Gruber, Luca Remonda, Albert Neutzner, Jatta Berberat   +10 more
doaj   +1 more source

Surface guidance of stem cell behavior: Chemically tailored co-presentation of integrin-binding peptides stimulates osteogenic differentiation in vitro and bone formation in vivo [PDF]

, 2016
Surface modification stands out as a versatile technique to create instructive biomaterials that are able to actively direct stem cell fate. Chemical functionalization of titanium has been used in this work to stimulate the differentiation of human ...
Dashnyam, Khandmaa, Fraioli, Roberta, Gil Mur, Francisco Javier, Ginebra Molins, Maria Pau, Kim, Hae-Won, Kim, Joong-Hyun, Manero Planella, José María, Mas Moruno, Carlos, Pérez Antoñanzas, Román   +8 more
core   +2 more sources

Peripapillary arterial circle of Zinn-Haller: location and spatial relationships with myopia. [PDF]

PLoS ONE, 2013
PURPOSE: To measure histomorphometrically the location of the peripapillary arterial circle of Zinn-Haller (ZHAC) and assess its associations with axial length.
Jost B Jonas, Leonard Holbach, Songhomitra Panda-Jonas   +2 more
doaj   +1 more source