Results 51 to 60 of about 11,477 (218)

Translabyrinthine Petrous Apex Cholesteatoma Surgery with Hearing Preservation

Case Reports in Otolaryngology, 2021
Objective. To introduce a novel surgical approach to petrous apex lesion (PA) with superior semicircular canal plugging for hearing preservation. Patient. A 63-year-old patient presented with a recurrent cholesteatoma of the left petrous apex.
Holger Sudhoff, Randolf Klingebiel, Lars-Uwe Scholtz, Ingo Todt   +3 more
doaj   +1 more source

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

The Anatomical Record, EarlyView.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit, R. Araujo, E. S. Lund, A. Bolton, T. Lafferty, Z. Macungo, V. Fernandez   +6 more
wiley   +1 more source

Vestibulo-Ocular Reflex Abnormalities in Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo: A Pilot Study [PDF]

Iranian Journal of Otorhinolaryngology, 2017
Introduction: Benign paroxysmal positional vertigo (BPPV), involving the semicircular canals, is one of the most common diseases of the inner ear. The video head impulse test (vHIT) is a new test that examines the function of the canals. This study aimed
Tayyebe Fallahnezhad, Mansoureh Adel Ghahraman, Saeid Farahani, Reza Hoseinabadi, Shohreh Jalaie   +4 more
doaj   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

The Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Disparity of turbinal bones in placental mammals

The Anatomical Record, EarlyView.
Abstract Turbinals are key bony elements of the mammalian nasal cavity, involved in heat and moisture conservation as well as olfaction. While turbinals are well known in some groups, their diversity is poorly understood at the scale of placental mammals, which span 21 orders.
Quentin Martinez, Mark Wright, Benjamin Dubourguier, Kai Ito, Thomas van de Kamp, Elias Hamann, Marcus Zuber, Gabriel Ferreira, Rémi Blanc, Pierre‐Henri Fabre, Lionel Hautier, Eli Amson   +11 more
wiley   +1 more source

An exploratory study to detect Ménière’s disease in conventional MRI scans using radiomics

Frontiers in Neurology, 2016
ObjectiveThe purpose of this exploratory study was to investigate whether a quantitative image analysis of the labyrinth in conventional MRI scans using a radiomics approach showed differences between patients with Ménière’s disease and the control group.
E. L. van den Burg, M. van Hoof, A. A. Postma, A. M. L. Janssen, R. J. Stokroos, H. Kingma, H. Kingma, R. van de Berg, R. van de Berg   +8 more
doaj   +1 more source

Semicircular canal plane head impulses detect absent function of individual semicircular canals [PDF]

Brain, 1998
We studied the human vestibulo-ocular reflex (VOR) in response to head 'impulses': brief, unpredictable, passive, high-acceleration (up to 4000 degrees/s2), low-amplitude (20-30 degrees) head rotations. We delivered the head impulses approximately in the plane of the semicircular canal (SCC) being tested.
Ian S. Curthoys, Michael J. Todd, Gabor Michael Halmagyi, Swee T. Aw, R. A. Black, I P Hannigan, Phillip D. Cremer, Leigh A. McGarvie   +7 more
openaire   +3 more sources

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, EarlyView.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source

Review of the anatomical basis for predicting plutonium alpha particle radiation induced osteogenic cancers

The Anatomical Record, EarlyView.
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley   +1 more source

Radiological patterns of the posterior semicircular canal [PDF]

Surgical and Radiologic Anatomy, 2013
The identification and definition of the radiological patterns of the posterior semicircular canal (PSC), with a view to obtain readily applicable conclusions.The parietal morphology of the PSC has been studied by multi-slice helical computed tomography (Philips Brilliance 6).
Cisneros, A.I., Whyte, J., Martínez, C., Gracia-Tello, B., Whyte, A., Obón, J., Crovetto, R., Crovetto, M.A.   +7 more
openaire   +4 more sources