Results 61 to 70 of about 904,311 (172)

Changes in monkey horizontal semicircular canal afferent responses after spaceflight

open access: yes, 1992
Extracellular responses from single horizontal semicircular canal afferents in two rhesus monkeys were studied after recovery from a 14-day biosatellite (COSMOS 2044) orbital spaceflight.
I. B. Kozlovskaya   +6 more
core   +1 more source

Application of the video head impulse test to detect vertical semicircular canal dysfunction [PDF]

open access: yes, 2013
OBJECTIVE: The video head impulse test (vHIT) is a useful clinical tool to detect semicircular canal dysfunction. However, so far, vHIT has been limited to measurement of the function of the horizontal semicircular canals.
Macdougall, H G   +4 more
core   +1 more source

Abnormal posterior semicircular canal function may predict poor prognosis in patients with severe and profound ISSNHL

open access: yesFrontiers in Neurology, 2023
BackgroundSevere and profound idiopathic sudden sensorineural hearing loss (ISSNHL) generally leads to unfavorable prognosis, and has a considerable impact on patient quality of life.
Yang Yang   +30 more
doaj   +1 more source

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

open access: yesThe Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini   +8 more
wiley   +1 more source

From combined testing to bedside inference: Linking ASC/PSC gain ratio with nystagmus phenotypes in acute unilateral vestibulopathy

open access: yesAmerican Journal of Otolaryngology
Objective: To characterize semicircular canal involvement and nystagmus phenotypes in acute unilateral vestibulopathy (AUVP) under the 2022 Bárány criteria, focusing on the anterior-to-posterior canal (ASC/PSC) gain ratio and its link to horizontal-only (
Lijuan Shangguan, Hailong Wang
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti   +4 more
wiley   +1 more source

The Predictive Role of Video Head Impulse Testing Patterns of Anti-Compensatory Saccades Using the Suppression Head Impulse Paradigm for the Diagnosis of Mild Acute Unilateral Vestibular Loss

open access: yesAudiology Research
Background/Objectives: To evaluate the predictive role of anti-compensatory saccades in diagnosing mild acute unilateral vestibular loss. Methods: Consecutive patients with vertigo who underwent a bedside vestibular evaluation and video head impulse ...
Cristiano Balzanelli   +2 more
doaj   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

open access: yesThe Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit   +6 more
wiley   +1 more source

Bilateral semicircular canal aplasia [PDF]

open access: yes, 2013
SummaryIntroductionBilateral semicircular canal aplasia is extremely rare; discovery, when the cochlear-vestibular system is normal and there is no hearing loss, is serendipitous.Case reportBilateral semicircular canal aplasia was serendipitously ...
Brecheteau, C.   +3 more
core   +1 more source

Video Head Impulse Test (vHIT) Findings in Patients With Superior Semicircular Canal Dehiscence: A Case–Control Study

open access: yes, 2021
OBJECTIVE: To explore the usefulness of the responses of video head impulse testing (vHIT) in assessing symptomatic patients with superior semicircular canal dehiscence (SSCD).
Margaret Gaggini   +7 more
core   +1 more source

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