Estimation of the ear canal displacement field due to in-ear device insertion using a registration method on a human-like artificial ear

Reliability of real ear insertion gain in behind-the-ear hearing aids with different coupling systems to the ear canal

OBJECTIVE The last decade has offered a multitude of instant fit coupling systems to be fitted with behind-the-ear (BTE) hearing aids. The impact of these designs on the reliability of real ear measurements (REMs) has not been reported. The purpose of this study was to obtain REM reliability data for instant fit coupling systems. DESIGN REM reliability data was obtained for four different ins...

Ear Teratoma; a Case Report

Teratomas are tumors originated from mature or immature tissues. Teratomas are made up of one embryonic layer or all three embryonic layers (endoderm, mesoderm, or ectoderm). Herein we report a 41-year-old man who presented with vertigo, vomiting, and tinnitus. After physical examination, laboratory evaluation and performing computed tomography, cholesteatoma was diagnosed, however, during radi...

Mass in the ear canal.

Estimation of Stapedius-Muscle Activation using Ear Canal Absorbance Measurements

The stapedius muscle, which is located in the middle ear, goes into contraction when the ear is exposed to high sound intensities. This muscle activation is called 'the acoustic reflex'. Measurement of the acoustic reflex is clinically of importance since it can reveal diagnostic information about the middle ear's pathologies. Moreover, this muscle-activation alters the acoustic characteristics...

Ear Candling: A Dangerous Pleasure?

Ear candling is an alternative medicine practice alleged to enhance general health by putting an end of a hollow candle in the ear canal and lighting up the other end of it. It also is advertised for cerumen and debris (bacteria and fungi) removal. Ear candling is claimed to create negative pressure for drawing cerumen from the ear and to benefit the ears in many ways. It is however not free o...