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Abstract #4657

In Vivo Study of the Human Ear Canal Using Contrast-Enhanced MRI

Sune Darkner1, Søren Jønsson2, and Stefan Sommer1

1Computer Science, University of Copenhagen, Copenhagen, Denmark, 2Brüel & Kjaer, Denmark

We present the first MRI-based study of the anatomy of the human outer ear. We show that on 45 subjects we can accurately retrieve the anatomy of this outer cavity using a focussing coil, a T2-weighted sequence and vegetable oil. As validation, we show that from the retrieved anatomies of the population we can, using standard methodology, compute an average ear canal that has distinct anatomical landmarks as well as the acoustical properties, which are almost identical to that of a real ear-canal anatomy.

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