Results 161 to 170 of about 4,323 (203)
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The cochlear aqueduct: Structural considerations
The Laryngoscope, 1979AbstractPerusing 170 series of temporal bone sections, the course of the aqueduct was found to be a spindle shape, based on numerous dilatations in the middle section. Ample space was offered for development of bony excrescences such as exostotic depositions and osteoma‐like protrusions of all sizes.
G, Kelemen +2 more
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Patency of the Cochlear Aqueduct
Acta Radiologica. Diagnosis, 1985The patency of the cochlear aqueduct is discussed against the background of radioanatomic studies of 225 plastic casts of temporal bone specimens and additional experimental and clinical observations. The occasional presence of a wide venous channel running parallel with the cochlear aqueduct, as well as the existence of up to three accompanying ...
C, Muren +3 more
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Radiology of the Cochlear Aqueduct
Annals of Otology, Rhinology & Laryngology, 2005Objectives: We sought to determine normative data for the radiologic presentation of the cochlear aqueduct (CA), hypothesizing that increasing the scanner's resolution could enhance detection capability. Methods: Axial sections of 502 high-resolution computed tomography (CT) images of temporal bones (488 patients) were reviewed.
Lela, Migirov, Jona, Kronenberg
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Functional Patency of the Cochlear Aqueduct
Annals of Otology, Rhinology & Laryngology, 1982The perilymphatic (P P) and cerebrospinal fluid (P CSF) pressures were investigated in relation to pressure variations in the ear canal, middle ear and intracranial compartment before and after occlusion of the cochlear aqueduct (CA). Experiments using intracranial infusion showed that the CA was responsible for a perfect hydrodynamic balance between ...
B, Carlborg, B, Densert, O, Densert
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Petromastoid canal and cochlear aqueduct in cochlear implant candidates
Otolaryngology–Head and Neck Surgery, 2009ObjectiveTo present temporal bone fine channels in cochlear implantation candidates.MethodsReview of the axial sections of 108 temporal bone CTs. In type I, the petromastoid canal (PMC) was invisible but appeared as channels in type II and type III, <0.5 and 0.5‐1 mm wide, respectively, and in type IV was >1 mm wide.
Lela, Migirov, Jona, Kronenberg
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Acta Oto-Laryngologica, 1970
In six infant ears the cochlear aqueduct had an average length of 3.5 mm while that of adults was earlier found to measure 6.2 mm. The width of the aqueduct was relatively large being at least 150 μm at the narrowest point, 0.5–1 mm from scala tympani.
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In six infant ears the cochlear aqueduct had an average length of 3.5 mm while that of adults was earlier found to measure 6.2 mm. The width of the aqueduct was relatively large being at least 150 μm at the narrowest point, 0.5–1 mm from scala tympani.
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Archives of Otolaryngology - Head and Neck Surgery, 1970
To the Editor .—Dr. Palva comments that an increased perilymphatic pressure would be more likely to cause compression of the endolymphatic system. This would certainly seem to be true provided the endolymphatic system itself were a normal one. In this case, however, the increased perilymphatic pressure occurred in the presence of an already existing ...
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To the Editor .—Dr. Palva comments that an increased perilymphatic pressure would be more likely to cause compression of the endolymphatic system. This would certainly seem to be true provided the endolymphatic system itself were a normal one. In this case, however, the increased perilymphatic pressure occurred in the presence of an already existing ...
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STRUCTURE AND FUNCTION OF THE COCHLEAR AQUEDUCT
Archives of Otolaryngology - Head and Neck Surgery, 1952THE COMMONLY accepted view about the cochlear aqueduct is that it provides an open connection between the perilymphatic space of the cochlea and the subarachnoid space of the brain. It is often said also that perilymph is simply cerebrospinal fluid. Yet there is clinical evidence that is difficult to reconcile with such views.
J, LEMPERT +4 more
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The cochlear aqueduct in pediatric temporal bones
European Archives of Oto-Rhino-Laryngology, 1997The cochlear aqueduct is a bony channel which contains the fibrous periotic duct and connects the perilymphatic space of the basal turn of the cochlea with the subarachnoid space of the posterior cranial cavity. Previous histological studies suggested that patency depended on age, whereas a more recent study showed no statistical correlation between ...
E, Bachor, S, Byahatti, C S, Karmody
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Studies on Cochlear Aqueduct Patency
Annals of Otology, Rhinology & Laryngology, 1978Complex studies on the patency of the cochlear aqueduct were made on 250 human cadavers and the temporal bones isolated from these, using a chemical method (staining reaction) as well as filling the aqueduct with fluid plastics and exposing the whole of its course under an operating microscope.
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