Visualization of Endolymphatic Hydrops after Intratympanic injection of Gd-DTPA: Comparison of 2D and 3D Real Inversion Recovery Imaging

Purpose: Endolymphatic hydrops of Ménière’s disease has been visualized after intratympanic injection of gadopentetate dimeglumine (Gd-DTPA) inversion-recovery sequence with real reconstruction (3D real IR). This technique enables differentiation of bone and endo- and perilymph space on a single image but requires 15 min of scan time. Therefore, we compared it with 2D real IR, which is faster.

Shinji Naganawa-Masahiro Yamazaki-Hisashi Kawai, Departments of radiology, Nagoya University, Graduate School of Medicine, Nagoya, Japan.

Michihiko Sone-Tsutomu Nakashima, Departments of Otorhinolaryngology, Nagoya University, Graduate School of Medicine, Nagoya, Japan.

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