Results 91 to 100 of about 751,848 (316)

Ear endoscopic Surgery: Dissection of the Middle Ear

open access: yesInternational Archives of Otorhinolaryngology, 2009
Introdução: Endoscópios são equipamentos utilizados com sucesso em diversos procedimentos de várias especialidades médicas. Entretanto, na área da otologia, mesmo com a incorporação dos endoscópios em procedimentos conjuntos com microscópio, os ...
Nogueira Júnior, João Flávio   +1 more
doaj  

High-Speed Holographic Shape and Full-Field Displacement Measurements of the Tympanic Membrane in Normal and Experimentally Simulated Pathological Ears

open access: yesApplied Sciences, 2019
To improve the understanding of the middle-ear hearing mechanism and assist in the diagnosis of middle-ear diseases, we are developing a high-speed digital holographic (HDH) system to measure the shape and acoustically-induced transient displacements of ...
Haimi Tang   +7 more
doaj   +1 more source

Optical Imaging With a High-Resolution Microendoscope to Identify Cholesteatoma of the Middle Ear [PDF]

open access: yes, 2013
Objectives/Hypothesis: High-resolution optical imaging is an imaging modality that allows visualization of structural changes in epithelial tissue in real time.
Ahn   +25 more
core   +1 more source

Beyond Bioactive Glass Composition: Using Morphology to Improve in Vitro and in Vivo Performance

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioactive glasses can easily be shaped into granules, spheres, discs, fibers, or three‐dimensional scaffolds. The resulting morphology not only affects handling properties; it has a direct influence on various glass properties, including results of acellular immersion experiments or in vitro studies with cells or bacteria, but also on in vivo ...
Meixin Su   +5 more
wiley   +1 more source

In vivo imaging of middle-ear and inner-ear microstructures of a mouse guided by SD-OCT combined with a surgical microscope [PDF]

open access: yes, 2014
We developed an augmented-reality system that combines optical coherence tomography (OCT) with a surgical microscope. By sharing the common optical path in the microscope and OCT, we could simultaneously acquire OCT and microscope views.
Casselman   +25 more
core   +1 more source

An Ultra‐Flexible Neural Electrode with Bioelectromechanical Compatibility and Brain Micromotion Detection

open access: yesAdvanced Healthcare Materials, EarlyView.
Neural electrodes face a mechanical mismatch with brain tissue. This study proposes a bioelectromechanical coupling strategy using an ultra‐flexible electrode designed for synchronized motion. Optimized to match brain tissue stiffness, it achieves dual signal acquisition and micromotion sensing, with characterized interfacial forces and piezoresistive ...
Donglei Chen   +11 more
wiley   +1 more source

Integration of 3D-printed middle ear models and middle ear prostheses in otosurgical training

open access: yesBMC Medical Education
Background In otosurgical training, cadaveric temporal bones are primarily used to provide a realistic tactile experience. However, using cadaveric temporal bones is challenging due to their limited availability, high cost, and potential for infection ...
Sini Lähde   +4 more
doaj   +1 more source

Are hearing and middle ear statuses at risk in Chinese patients undergoing orthognathic surgery? [PDF]

open access: yes, 2002
Orthognathic surgery, which is performed to correct dentofacial abnormalities, has been associated with postoperative reduction in hearing sensitivity and middle ear dysfunction.
Samman, N, Whitehill, TL, Wong, LLN
core   +1 more source

Progressive Insights into 3D Bioprinting for Corneal Tissue Restoration

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores the potential of 3D bioprinting to replicate the complex structure and function of the human cornea. It highlights key advances in bioink development, printing modalities, and in vivo performance, while addressing current challenges and emerging strategies. The review emphasizes bioprinting's promise to overcome donor shortages and
Ilayda Namli   +6 more
wiley   +1 more source

Using otoacoustic emissions to measure the transmission matrix of the middle-ear [PDF]

open access: yes, 2006
Thesis (S.M.)--Harvard-MIT Division of Health Sciences and Technology, 2006.Includes bibliographical references (leaves 39-41).Here we describe an experimental method for measuring the acoustic transmission matrix of the middle-ear using otoacoustic ...
Miller, Antonio John
core  

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