Demonstration of the postcommissural fibres of the fornix in short-inversion time inversion-recovery imaging on a high-field system

2001 ◽  
Vol 43 (7) ◽  
pp. 547-550 ◽  
Author(s):  
N. Saeki ◽  
K. Kansaku ◽  
Y. Higuchi ◽  
K. Kawano ◽  
T. Iijima ◽  
...  
Keyword(s):  
High Field ◽  
Inversion Recovery ◽  
Time Inversion ◽  
Field System ◽  
Inversion Time ◽  
Inversion Recovery Imaging

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.

Infectious liver foci in leukemia: comparison of short-inversion-time inversion-recovery, T1-weighted spin-echo, and dynamic gadolinium-enhanced MR imaging.

Radiology ◽  
1994 ◽  
Vol 191 (2) ◽  
pp. 539-543 ◽  
Author(s):  
A E Lamminen ◽  
V J Anttila ◽  
S Bondestam ◽  
T Ruutu ◽  
P J Ruutu
Keyword(s):  
Mr Imaging ◽  
Spin Echo ◽  
Inversion Recovery ◽  
Time Inversion ◽  
Inversion Time

Magnetization transfer short inversion time inversion recovery enhanced1H MRI of the human lung

2002 ◽  
Vol 15 (1-3) ◽  
pp. 10-17 ◽  
Author(s):  
Peter M. Jakob ◽  
Tungte Wang ◽  
Georg Schultz ◽  
Helge Hebestreit ◽  
Alexandra Hebestreit ◽  
...  
Keyword(s):  
Human Lung ◽  
Magnetization Transfer ◽  
Inversion Recovery ◽  
Time Inversion ◽  
Inversion Time

Cartilaginous Defects of the Femorotibial Joint: Accuracy of Coronal Short Inversion Time Inversion-Recovery MR Sequence

Radiology ◽  
2006 ◽  
Vol 240 (2) ◽  
pp. 482-488 ◽  
Author(s):  
Karl-Peter Jungius ◽  
Marius R. Schmid ◽  
Marco Zanetti ◽  
Juerg Hodler ◽  
Peter Koch ◽  
...  
Keyword(s):  
Inversion Recovery ◽  
Time Inversion ◽  
Inversion Time ◽  
Femorotibial Joint

Nontraumatic pediatric musculoskeletal MR imaging: comparison of conventional and fast-spin-echo short inversion time inversion-recovery technique.

Radiology ◽  
1995 ◽  
Vol 194 (3) ◽  
pp. 721-726 ◽  
Author(s):  
E Weinberger ◽  
D W Shaw ◽  
K S White ◽  
W D Winters ◽  
J E Stark ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Spin Echo ◽  
Inversion Recovery ◽  
Fast Spin Echo ◽  
Time Inversion ◽  
Inversion Time ◽  
Recovery Technique ◽  
Fast Spin
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