نتایج جستجو برای: aqueduct velocity

تعداد نتایج: 142310  

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2023

Abstract. The Twenty Eyes Aqueduct is a work of hydraulic engineering with several centuries history. In the present work, innovative Cloud-to-BIM-to-FEM methodology applied, capable converting BIM models, generated from point clouds, into finite element models. cloud was obtained using UAV photogrammetry, carrying out 3D survey current state aqueduct and its surroundings. has served as basis f...

2014
Milan Radoš Darko Orešković Marko Radoš Ivana Jurjević Marijan Klarica

The aim of this study is to present the five-year longitudinal magnetic resonance imaging (MRI) follow up of a patient with incidental finding of near-obstruction stenosis of the aqueduct of Sylvius due to a large pineal cyst. The patient was scanned 3 times on a 3T MR device using a set of standard structural sequences supplemented with high-resolution constructive interference of steady state...

Journal: :AJNR. American journal of neuroradiology 2016
A F Juliano E Y Ting V Mingkwansook L M Hamberg H D Curtin

BACKGROUND AND PURPOSE The 45° oblique (Pöschl) plane allows reliable depiction of the vestibular aqueduct, with virtually its entire length often visible on 1 CT image. We measured its midpoint width in this plane, aiming to determine normal measurement values based on this plane. MATERIALS AND METHODS We retrospectively evaluated temporal bone CT studies of 96 pediatric patients without sen...

Journal: :Journal of Neurology, Neurosurgery & Psychiatry 1983

Journal: :Brain communications 2023

Abstract Pineal cysts are prevalent in the population. Due to more widespread use of magnetic resonance imaging, an increasing number symptomatic patients with non-hydrocephalic pineal referred neurologists and neurosurgeons. Currently, there is no generally accepted theoretical framework for linking symptoms a cyst. We have previously suggested that cyst-induced crowding recess may affect veno...

Journal: :Journal of applied physiology 2012
Robert Hamilton Kevin Baldwin Jennifer Fuller Paul Vespa Xiao Hu Marvin Bergsneider

This study identifies a novel relationship between cerebrospinal fluid (CSF) stroke volume through the cerebral aqueduct and the characteristic peaks of the intracranial pulse (ICP) waveform. ICP waveform analysis has become much more advanced in recent years; however, clinical practice remains restricted to mean ICP, mainly due to the lack of physiological understanding of the ICP waveform. Th...

Journal: :The Journal of laryngology and otology 2008
M Sugiura S Naganawa I M Ishida M Teranishi S Nakata T Yoshida T Nakashima

OBJECTIVE To evaluate the vestibular aqueduct in patients with sudden sensorineural hearing loss. METHODS We evaluated 19 patients (12 men and seven women; age range, 22-79 years) with unilateral sudden sensorineural hearing loss, using computed tomography and magnetic resonance imaging. All these patients had unilateral sudden sensorineural hearing loss. We also evaluated 47 control subjects...

Journal: :Archives of otolaryngology--head & neck surgery 2012
David R Friedmann Jan Eubig Leon S Winata Bidyut K Pramanik Saumil N Merchant Anil K Lalwani

OBJECTIVE To further define the spectrum of clinical presentation and explore the histologic sequelae of jugular bulb abnormalities (JBAs). DESIGN Retrospective review. SETTING Academic medical center. PATIENTS Thirty patients with radiologic evidence of inner ear dehiscence by JBA. MAIN OUTCOME MEASURE Thirty patients with radiologic inner ear dehiscence by JBA and 1579 temporal bone s...

Journal: :Brazilian journal of otorhinolaryngology 2005
José A Pinto Carlos Fernando Mello Ana Carla S Marqui Delmer J Perfeito Roberto D P Ferreira Rubens H Silva

The Enlarged Vestibular Aqueduct Syndrome is characterized by a widening of the vestibular aqueduct, associated with sensorineural hearing loss, or sometimes with mixed hearing loss, which may be congenital or acquired during childhood. The sensorineural hearing loss may be classified into mild, moderate and severe, associated with sudden periods of improvement or aggravation. The enlargement o...

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