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  • Title: Inner ear fluid volumes and the resolving power of magnetic resonance imaging: can it differentiate endolymphatic structures?
    Author: Buckingham RA, Valvassori GE.
    Journal: Ann Otol Rhinol Laryngol; 2001 Feb; 110(2):113-7. PubMed ID: 11219516.
    Abstract:
    Magnetic resonance imaging (MRI) can accurately recognize minute volumes as small as 1 mm3. The volumes of the utricle and saccule of the inner ear are within the resolving power of MRI, but these structures cannot be recognized because the endolymph and perilymph signals are identical. To clarify the interpretation and description of inner ear structures on MRI, we measured and calculated the volumes of the perilymphatic and endolymphatic spaces of the human ear. We found the total volume of the bony labyrinth to be approximately 192.5 mm3 (endolymph, 34.0 mm3; perilymph, 158.5 mm3).
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