Acoustic rhinometry: anatomic correlation of the first two notches found in the nasal echogram.

Unlabelled: The graphic obtained by acoustic rhinometry in Caucasian adult individuals with no nasal affections clearly shows two notches at the beginning of the nasal echogram. However, there are controversies in the literature concerning their anatomic correlation.

Aim: The aim of this study was to obtain data that would contribute to the anatomic correlation of these two notches.