Estimation of Perilymph Enhancement after Intratympanic Administration of Gd-DTPA by Fast T1-mapping with a Dual Flip Angle 3D Spoiled Gradient Echo Sequence

Shinji NAGANAWA; Masahiro YAMAZAKI; Hisashi KAWAI; Kiminori BOKURA; Michihiko SONE; Tsutomu NAKASHIMA

doi:10.2463/mrms.2012-0071

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Estimation of Perilymph Enhancement after Intratympanic Administration of Gd-DTPA by Fast T₁-mapping with a Dual Flip Angle 3D Spoiled Gradient Echo Sequence

Shinji NAGANAWA, Masahiro YAMAZAKI, Hisashi KAWAI, Kiminori BOKURA, Michihiko SONE, Tsutomu NAKASHIMA

著者情報

キーワード: advanced imaging techniques, magnetic resonance imaging, Ménière's disease, temporal bone disease, 3D imaging

ジャーナルフリー早期公開

論文ID: 2012-0071

DOI https://doi.org/10.2463/mrms.2012-0071

この記事には本公開記事があります。

The final version of this article is now available: Vol. 12 (2013), No. 3 pp. 223-228

詳細

抄録

Eleven patients with suspected Ménière's disease received intratympanic (IT) administration of gadolinium (gadopentetate dimeglumine; Gd) prior to acquisition of 3-dimensional (3D) fluid-attenuated inversion recovery (FLAIR), 3D real inversion recovery (IR), and fast T₁ mapping by dual flip angle 3D gradient echo (FT₁-map) imaging sequences to evaluate the degree of perilymph enhancement. Though 3-dimensional FLAIR could detect lower concentrations of gadolinium than 3D real IR, in 2 patients, poor enhancement still prevented visualization of the endolymphatic space using 3D FLAIR. We could predict poor contrast enhancement in these 2 patients using the FT₁-map technique.

責任著者(Corresponding author)

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