Assessment of sedated pediatric brain with 3D-FLAIR sequence at 3T MRI

2015 ◽  
Vol 37 (5) ◽  
pp. 495-500 ◽  
Author(s):  
Umit Aksoy Ozcan ◽  
Ugur Isik ◽  
Alp Ozpinar ◽  
Nigar Baykan ◽  
Alp Dincer
Keyword(s):  
3T Mri ◽  
Flair Sequence ◽  
Pediatric Brain ◽  
3D Flair

The round window sign: a sensitive sign to detect perilymphatic fistulae on delayed postcontrast 3D-FLAIR sequence

2020 ◽  
Vol 30 (11) ◽  
pp. 6303-6310 ◽  
Author(s):  
Frédérique Dubrulle ◽  
Victor Chaton ◽  
Michael Risoud ◽  
Hedi Farah ◽  
Quentin Charley ◽  
...  
Keyword(s):  
Round Window ◽  
Flair Sequence ◽  
3D Flair

scholarly journals Audiovestibular Phenotypes and Advanced Magnetic Resonance Imaging Features of Cochlin Gene Mutation Carriers

2019 ◽  
Vol 24 (4) ◽  
pp. 166-173
Author(s):  
Giorgio Conte ◽  
Francesco Lo Russo ◽  
Luca Caschera ◽  
Diego Zanetti ◽  
Pierangela Castorina ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Endolymphatic Hydrops ◽  
Heterozygous Mutation ◽  
Main Role ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Flair Sequence ◽  
Factor C ◽  
3D Flair

Objective: To describe clinical and imaging findings in a group of patients affected by nonsyndromic deafness A9 (DFNA9), using advanced magnetic resonance imaging (MRI) with 3-dimensional (3D) fluid-attenuated inversion recovery (FLAIR) sequence. Method: A retrospective case review was conducted in a tertiary referral center in Italy. Four sequential adult DFNA9-affected patients, who had undergone MRI at our Department between January 2017 and June 2018, were enrolled (male = 2, female = 2; median age: 65.6 years; 8 diseased ears analyzed). Three patients were relatives; the fourth was unrelated. The main outcome measures – age, sex, records of audiological and vestibular testing, genetic assessment, MRI findings – were analyzed. Results: All subjects suffered from bilateral progressive sensorineural hearing loss, more severely at the high frequencies and with a typical clinical pattern of bilateral chronic degenerative cochleovestibular deficit. Aural fullness was reported at the onset of the disease. All patients revealed a pathogenic heterozygous mutation in the Limulus factor C, Coch-5b2 and Lgl1 domain of cochlin. None of the patients showed a significant vestibular and cochlear endolymphatic hydrops at MRI, while high bilateral contrast enhancement on 4-h delayed postcontrast 3D FLAIR sequence was observed in all ears. Conclusions: Increased perilymph enhancement on 4-h delayed postcontrast 3D FLAIR sequence is the common imaging feature of DFNA9 ears, suggesting that blood-labyrinthine barrier breakdown may play the main role in the pathophysiology of this disease. Significant hydrops has been excluded by MRI. This finding might be clinically useful in differentiating DFNA9 disease from other pathologies with similar clinical findings like Ménière’s disease.

Three - dimensional fluid attenuated inversion recovery sequence on 3 tesla magnetic resonace imaging in cranial nerve pathologies: Two case reports

2021 ◽  
Author(s):  
Thuyet Dinh Van
Keyword(s):  
Cranial Nerve ◽  
Case Reports ◽  
Three Dimensional ◽  
Inversion Recovery ◽  
Inversion Recovery Sequence ◽  
Recovery Sequence ◽  
Flair Sequence ◽  
Fluid Attenuated Inversion Recovery ◽  
Fluid Pulsation ◽  
3D Flair

Three - dimensional fluid attenuated inversion recovery sequence (3D-FLAIR) was introduced as a practical sequence which helps to reduce the cerebrospinal fluid pulsation and flow artefacts of conventional 2D acquisition and brings contiguous slices, ability in reformatting in variable planes which are typical features of 3D acquisition. 3D - FLAIR has been applied on assessing several neurologic pathologies. In this article, we introduce the application of 3D - FLAIR sequence without contrast enhancement on detecting abnormalities of cranial nerve pathology by presenting two cases, acute vestibular neuritis and facial nerve palsy. We suggest that 3D - FLAIR is the relatively useful sequence in detecting cranial nerve pathologies.

scholarly journals Accuracy of the Compressed Sensing Accelerated 3D-FLAIR Sequence for the Detection of MS Plaques at 3T

2018 ◽  
Vol 39 (3) ◽  
pp. 454-458 ◽  
Author(s):  
S. Toledano-Massiah ◽  
A. Sayadi ◽  
R. de Boer ◽  
J. Gelderblom ◽  
R. Mahdjoub ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Flair Sequence ◽  
3D Flair

scholarly journals Improving Detection of Multiple Sclerosis Lesions in the Posterior Fossa Using an Optimized 3D-FLAIR Sequence at 3T

2019 ◽  
Vol 40 (7) ◽  
pp. 1170-1176 ◽  
Author(s):  
A. Lecler ◽  
I. El Sanharawi ◽  
J. El Methni ◽  
O. Gout ◽  
P. Koskas ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Posterior Fossa ◽  
Flair Sequence ◽  
3D Flair

scholarly journals Assessment of the Membranous Labyrinth in Infants Using a Heavily T2-weighted 3D FLAIR Sequence without Contrast Agent Administration

2021 ◽  
Vol 42 (2) ◽  
pp. 377-381
Author(s):  
G. Conte ◽  
S. Casale ◽  
L. Caschera ◽  
F.M. Lo Russo ◽  
C. Paolella ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Membranous Labyrinth ◽  
Flair Sequence ◽  
Contrast Agent Administration ◽  
3D Flair

3D-Flair sequence at 3T in cochlear otosclerosis

2016 ◽  
Vol 26 (10) ◽  
pp. 3744-3751 ◽  
Author(s):  
Francesco Lombardo ◽  
Sara De Cori ◽  
Gayane Aghakhanyan ◽  
Domenico Montanaro ◽  
Daniele De Marchi ◽  
...  
Keyword(s):  
Flair Sequence ◽  
3D Flair

Diagnosis of Menière’s disease on MRI: feasibility at 1.5 Tesla

2021 ◽  
pp. 028418512110164
Author(s):  
Christoph Kenis ◽  
Tom Crins ◽  
Anja Bernaerts ◽  
Jan Casselman ◽  
Bert De Foer
Keyword(s):  
Endolymphatic Hydrops ◽  
Meniere’S Disease ◽  
Meniere's Disease ◽  
Ménière’S Disease ◽  
Menière's Disease ◽  
Current Standard ◽  
Flair Sequence ◽  
Unilateral Disease ◽  
Ménière's Disease ◽  
3D Flair

Background Menière’s disease (MD) is clinically characterized by the triad sensorineural hearing loss, tinnitus and/or aural fullness, and vertigo. Endolymphatic hydrops (EH) is the histopathological basis associated with MD, which can be demonstrated on magnetic resonance imaging (MRI). Currently, most studies are done on a 3-T MRI scanner and to date it is believed that EH can only be demonstrated on a 3-T magnet. We report the feasibility of demonstrating EH on a 1.5-T scanner using the standard 20-channel head and neck coil and the current standard 4-h delayed intravenous gadolinium-enhanced three-dimensional fluid-attenuated inversion recovery (3D-FLAIR) sequence. Purpose To investigate whether current standard 4-h delayed intravenous gadolinium-enhanced 3D-FLAIR imaging can demonstrate endolymphatic hydrops on a 1.5-T MRI scanner. Material and Methods The 3D-FLAIR sequence was taken from a 3-T MRI protocol and tested on a volunteer patient with clinically “definite” MD, after 4-h delayed intravenous contrast injection. Good image quality was obtained after reducing both the matrix and the bandwidth, with clear demonstration of EH. Subsequently, eight more patients with unilateral disease were imaged. Five patients had “definite” MD and four had “probable” MD. Results We imaged nine patients with unilateral disease and detected EH in eight of nine ears. One patient with “probable” MD did not show any abnormality, but the images were degraded by motion artifacts. Conclusion At a cost of 2 min extra scanning time compared to a 3-T scanner, EH can be confidently demonstrated with the current standard 3D-FLAIR sequence on a 1.5-T magnet.

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