The difficulty to estimate the mechanical properties of the tympanic membrane (TM) is a limitation to understand the sound transmission mechanism. In this paper, based on finite element calculations, the sensitivity of the human hearing system to these properties is evaluated. The parameters that define the bending stiffness properties of the membrane have been studied, specifically two key parameters: Young's modulus of the tympanic membrane and the thickness of the eardrum. Additionally, it has been completed with the evaluation of the presence of an initial prestrain inside the TM. Modal analysis is used to study the qualitative characteristics of the TM comparing with vibration patterns obtained by holography. Higher-order modes are shown as a tool to identify these properties. The results show that different combinations of elastic properties and prestrain provide similar responses. The presence of prestrain at the membrane adds more uncertainty, and it is pointed out as a source for the lack of agreement of some previous TM elastic modulus estimations.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5966685 | PMC |
| http://dx.doi.org/10.1155/2018/1736957 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Postauricular feather foreign body in an infant.
BMJ Case Rep
January 2025
Ear, Nose and Throat, James Cook University Hospital, Middlesbrough, UK.
A male infant presented with reduced oral intake, low-grade fever and postauricular erythema. Clinical examination revealed a soft, tender swelling posteroinferior to the mastoid tip with a dull tympanic membrane on otoscopy. Cross-sectional imaging did not show any evidence of middle ear infection or mastoiditis.
View Article and Find Full Text PDFThe Efficacy of Platelet-Rich Plasma in the Repair of Tympanic Membrane Perforation.
Int Arch Otorhinolaryngol
January 2025
Department of Ear, Nose and Throat, JJM Medical College, Davangere, Karnataka, India.
Platelet-rich plasma (PRP) contains high platelet concentration and growth factors that help in rapid wound healing, hemostasis, and decreased scarring. It has been used in various conditions to aid in healing, but its use in ear, nose, and throat (ENT) is not yet common. To compare the outcome of using PRP with myringoplasty with that of myringoplasty alone in the repair of tympanic membrane perforations.
View Article and Find Full Text PDFAlleviating symptoms of paediatric acute rhinosinusitis and acute otitis media with otorrhea using nasal-spraying Bacillus probiotics: a randomized controlled trial.
Sci Rep
January 2025
Spobiotic Research Center, ANABIO R&D Ltd. Company, No. 22, Lot 7,8 Van Khe Urban, La Khe, Ha Dong, Hanoi, Vietnam.
Acute rhinosinusitis (ARS) in children may be accompanied by acute otitis media (AOM) which is often associated with bacterial co-infections. These conditions are among the primary reasons that children visit hospitals and require antibiotic treatment. This study evaluated the efficacy of the nasal-spraying probiotics (LiveSpo Navax containing 5 billion Bacillus subtilis and B.
View Article and Find Full Text PDFSimulators allow junior otolaryngology residents to practice the delicate procedure of pressure equalization tube (PET) insertion. However, most simulators lack the ability to mimic the differing anatomic complexities between patients, such as variable external auditory canal (EAC) size. We developed a novel low-cost, medium-fidelity 3-dimensional-printed PET simulator with different EAC sizes to better reflect procedure complexity.
View Article and Find Full Text PDFObjective: This study evaluates the efficacy of homeopathic treatments for Acute Otitis Media (AOM) in children, comparing outcomes to standard allopathic treatments. Building on promising pilot study results that suggested homeopathy's non-inferiority, this multicenter trial aims to validate these findings and assess their broader clinical applicability.
Method: This open-label, randomized controlled trial was conducted on children (aged 02 to 12 years), suffering from acute otitis media.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!