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

2011 ◽  
Vol 10 (2) ◽  
pp. 101-106 ◽  
Author(s):  
Shinji NAGANAWA ◽  
Michihiko SONE ◽  
Masahiro YAMAZAKI ◽  
Hisashi KAWAI ◽  
Tsutomu NAKASHIMA
Keyword(s):  
Endolymphatic Hydrops ◽  
Inversion Recovery ◽  
Inversion Recovery Imaging ◽  
Intratympanic Injection ◽  
2D And 3D

scholarly journals High-quality imaging of endolymphatic hydrops acquired in 7 minutes using sensitive hT2W–3D–FLAIR reconstructed with magnitude and zero-filled interpolation

2021 ◽  
Author(s):  
Jing Zou ◽  
Luguang Chen ◽  
Hongbin Li ◽  
Guoping Zhang ◽  
Ilmari Pyykkö ◽  
...  
Keyword(s):  
Inner Ear ◽  
Endolymphatic Hydrops ◽  
Inversion Recovery ◽  
Time Inversion ◽  
High Quality ◽  
Inversion Time ◽  
Inversion Recovery Imaging ◽  
Intratympanic Injection ◽  
Fluid Attenuated Inversion Recovery ◽  
Train Length

Abstract Background It is still challenging to detect endolymphatic hydrops (EH) in patients with Meniere’s disease (MD) using MRI. The aim of the present study was to optimize a sensitive technique generating strong contrast enhancement from minimum gadolinium–diethylenetriamine pentaacetic acid (Gd–DTPA) while reliably detecting EH in the inner ear, including the apex. Materials and methods All imaging was performed using a 3.0 T MR system 24 h after intratympanic injection of low-dose Gd–DTPA. Heavily T2-weighted 3-dimensional fluid-attenuated inversion recovery reconstructed with magnitude and zero-filled interpolation (hT2W–FLAIR–ZFI) was optimized and validated in phantom studies and compared with medium inversion time inversion recovery imaging with magnitude reconstruction (MIIRMR). The following parameters were used in hT2W–FLAIR–ZFI: repetition time 14,000 ms, echo time 663 ms, inversion time 2900 ms, flip angle 120°, echo train length 271, and field of view 166 × 196 mm2. Results MRI obtained using hT2W–FLAIR–MZFI yielded high-quality images with sharper and smoother borders between the endolymph and perilymph and a higher signal intensity ratio and more homogenous perilymph enhancement than those generated with MIIRMR (p < 0.01). There were predominantly grade II EHs in the cochleae and grade III EHs in the vestibule in definite MD. EH was detected in the apex of 11/16 ipsilateral ears, 3/16 contralateral ears in unilateral definite MD and 3/6 ears in bilateral MD. Conclusions The novel hT2W–FLAIR–MZFI technique is sensitive and demonstrates strong and homogenous enhancement by minimum Gd–DTPA in the inner ear, including the apex, and yields high-quality images with sharp borders between the endolymph and perilymph.

scholarly journals T2 Fluid-Attenuated Inversion Recovery Imaging of Uveal Melanomas and Other Ocular Pathology

2016 ◽  
Vol 2 (4) ◽  
pp. 251-261 ◽  
Author(s):  
Gena M. Damento ◽  
Kelly K. Koeller ◽  
Diva R. Salomão ◽  
Jose S. Pulido
Keyword(s):  
Inversion Recovery ◽  
Ocular Pathology ◽  
Inversion Recovery Imaging ◽  
Fluid Attenuated Inversion Recovery ◽  
Uveal Melanomas

Periventricular low intensities on fluid attenuated inversion recovery imaging in the newborn infant: Relationships to chronic white matter lesions

2004 ◽  
Vol 46 (2) ◽  
pp. 141-149 ◽  
Author(s):  
Osuke Iwata ◽  
Sachiko Iwata ◽  
Masanori Tamura ◽  
Tomohiko Nakamura ◽  
Shinnichi Hirabayashi ◽  
...  
Keyword(s):  
White Matter ◽  
Newborn Infant ◽  
White Matter Lesions ◽  
Inversion Recovery ◽  
Inversion Recovery Imaging ◽  
Fluid Attenuated Inversion Recovery

Double Inversion Recovery Imaging of the Brain: Initial Experience and Comparison with Fluid Attenuated Inversion Recovery Imaging

1998 ◽  
Vol 16 (2) ◽  
pp. 127-135 ◽  
Author(s):  
Karl Turetschek ◽  
Patrick Wunderbaldinger ◽  
Alexander A. Bankier ◽  
Thomas Zontsich ◽  
Oswald Graf ◽  
...  
Keyword(s):  
Inversion Recovery ◽  
Double Inversion Recovery ◽  
Initial Experience ◽  
Inversion Recovery Imaging ◽  
Fluid Attenuated Inversion Recovery ◽  
The Brain
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