Publications by authors named "Nicoloz Lasurashvili"
Article Synopsis
- The causes of hearing loss are diverse, stemming from genetic factors, infections, environmental conditions, and various health disorders.
- The Vibrant Soundbridge (VSB) is a type of implantable hearing aid designed specifically for those with sensorineural hearing loss and relies on proper attachment to the incus for optimal performance.
- Mechanical modeling and finite-element models (FEM) play a crucial role in understanding how the ear functions and evaluating the VSB, allowing for detailed simulations that can improve surgical outcomes and device effectiveness.
Objective: To evaluate electromechanical excitation as an alternative excitation mode for middle ear transfer function (METF) measurements as well as real-time feedback in prosthetic ossicular reconstruction.
Method: In eight human cadaveric temporal bones, the ossicular chain was excited using acoustic and mechanical (floating mass transducer, FMT) stimulation to determine the METF. After disconnecting the ossicular chain and reconstruction with partial or total prosthesis the METFs were measured again.
Article Synopsis
- The study suggests that using electromagnetical excitation to measure ossicular vibrations can effectively monitor the quality of middle ear operations in real-time.
- Accurate positioning of middle ear prostheses is crucial for successful hearing outcomes, yet this often relies on the surgeon's subjective assessment during surgeries.
- Experimental results show that this electromagnetic system produces reliable measurements comparable to traditional acoustic methods, with promising improvements in middle ear transfer function observed during surgeries.
A large air-bone-gap after ossiculoplasty may be due to a malpositioned or displaced prosthesis. Rotational tomography (RT) has the potential to provide high-resolution images of implants without artifacts and with less radiation dosage than CT scan. Twenty-seven temporal bone specimens underwent measurements of middle ear transfer function using Laser-Doppler-Vibrometry (LDV) before and after placement of ossicular replacement prostheses (PORPs, TORPs) made of titanium.
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