Results 221 to 230 of about 105,243 (258)

Where the central canal begins: endoscopic in vivo description

Journal of Neurosurgery, 2022
OBJECTIVE Although evidence and descriptions of the central canal (CC) along the medulla oblongata and the spinal cord have been provided by several anatomical and radiological studies, a clear picture and assessment of the opening of the CC, or apertura canalis centralis (ACC), into the fourth ventricle is ...
Longatti, Pierluigi, Fiorindi, Alessandro, Marton, Elisabetta, Sala, Francesco, Feletti, Alberto   +4 more
openaire   +3 more sources

Centralized Scheduling Logic for Canal Operation

Journal of Irrigation and Drainage Engineering, 1991
Many schemes and devices have been developed and tested during the past three decades for automatic control of canal networks. Most of these have used local flow criteria to determine gate settings. Computer simulation of transient canal hydraulics has also been used to help test some of the ideas for canal automation, and in some cases the simulations
G. P. Merkley, W. R. Walker
openaire   +1 more source

Cervical Central Canal Occlusion Induces Noncommunicating Syringomyelia

Neurosurgery, 2012
Mechanisms underlying the development of noncommunicating syringomyelia are poorly understood.To assess the influence of focal arachnoiditis and central canal (CC) occlusion (CCO) on the formation of noncommunicating syringomyelia in the adult rat cervical spinal cord.
Yongjie, Zhang, Yi Ping, Zhang, Lisa B E, Shields, Yiyan, Zheng, Xiao-Ming, Xu, Scott R, Whittemore, Christopher B, Shields   +6 more
openaire   +2 more sources

Location of Incisive Canal in Relation to Central Incisor Implants

Implant Dentistry, 1998
Computerized tomography (CT) scanning, now widely used for the diagnosis and treatment planning of dental implant sites, can be more specifically useful with integrated computer software. In this instance, the potentially critical incisive foramen area at the premaxilla is analyzed to better under stand its configuration and volume relative to the ...
R A, Kraut, D K, Boyden
openaire   +2 more sources

Hypothesis for Shared Central Processing of Canal and Otolith Signals

Journal of Neurophysiology, 1998
Green, Andrea M. and Henrietta L. Galiana. Hypothesis for shared central processing of canal and otolith signals. J. Neurophysiol. 80: 2222–2228, 1998. A common goal of the translational vestibuloocular reflex (TVOR) and the rotational vestibuloocular reflex (RVOR) is to stabilize visual targets on the retinae during head movement.
A M, Green, H L, Galiana
openaire   +2 more sources

Centralized Control of Irrigation Canal Systems

1984
The purpose of this work is to summarize the findings of studies conducted by the authors on the problem of modelling and control of open channel networks published in recent years.
G. Corriga, S. Sanna, G. Usai
openaire   +1 more source

The spinal cord central canal in kaolin-induced hydrocephalus

Journal of Neurosurgery, 1977
✓ In order to study the cause of the great individual variations in kaolin-induced hydrocephalus, the lower brain stem and upper spinal cord were examined histologically in a series of young rabbits that had received injections of kaolin into the cisterna magna.
A, Torvik, V S, Murthy
openaire   +2 more sources

Central spinal cord lesions in stenosis of the cervical canal

Neuroradiology, 1990
34 patients suffering from cervical spondylotic myelopathy confirmed by myelography were examined by delayed CT 6-10 h after myelography. Twelve patients showed bilateral intramedullary collections of contrast medium, predominantly cranial to the stenosis.
J H, Faiss, G, Schroth, W, Grodd, E, Koenig, B, Will, A, Thron   +5 more
openaire   +2 more sources

Cord Cystic Cavities: Syringomyelia and Prominent Central Canal

Seminars in Ultrasound, CT and MRI, 2017
Syringomyelia is the term given to cystic cavities in the spinal cord, most of which are associated with congenital malformations of the craniocervical junction and represent dilation of the central canal of the cord. As such, syrinxes can be considered analogous to hydrocephalus.
openaire   +2 more sources

A Central Incisor with 4 Independent Root Canals: A Case Report

Journal of Endodontics, 2015
The maxillary central incisor is the tooth with the least anatomic variations. Despite the fact that several studies have reported a prevalence of 100% for the presence of a single canal, root canal aberrations of maxillary central incisors with up to 3 canals have also been reported.
Aznar Portoles, C., Moinzadeh, A.T., Shemesh, H.   +2 more
openaire   +4 more sources