scholarly journals Abrogation of fluid suppression in intracranial postcontrast fluid-attenuated inversion recovery magnetic resonance imaging: A clinical and phantom study

2018 ◽  
Vol 59 (4) ◽  
pp. 432-443
Author(s):  
Peter J. Dickinson ◽  
Sarah Jones-Woods ◽  
Derek D. Cissell
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Phantom Study ◽  
Inversion Recovery ◽  
Resonance Imaging ◽  
Fluid Attenuated Inversion Recovery

scholarly journals Thrombolysis Outcomes in Acute Ischemic Stroke by Fluid-Attenuated Inversion Recovery Hyperintense Arteries

Stroke ◽  
2020 ◽  
Vol 51 (7) ◽  
pp. 2240-2243
Author(s):  
Zien Zhou ◽  
Sohei Yoshimura ◽  
Candice Delcourt ◽  
Richard I. Lindley ◽  
Shoujiang You ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Ischemic Stroke ◽  
Magnetic Resonance ◽  
Acute Ischemic Stroke ◽  
Infarct Volume ◽  
Inversion Recovery ◽  
Modified Rankin Scale ◽  
Resonance Imaging ◽  
Scale Scores ◽  
Fluid Attenuated Inversion Recovery

Background and Purpose: To determine factors associated with fluid-attenuated inversion recovery (FLAIR) hyperintense arteries (FLAIR-HAs) on magnetic resonance imaging and their prognostic significance in thrombolysis-treated patients with acute ischemic stroke from the ENCHANTED (Enhanced Control of Hypertension and Thrombolysis Stroke Study) trial alteplase-dose arm. Methods: Patients with acute ischemic stroke (N=293) with brain magnetic resonance imaging (FLAIR and diffusion-weighted imaging sequences) scanned <4.5 hours of symptom onset were assessed for location and extent (score) of FLAIR-HAs, infarct volume, large vessel occlusion (LVO), and other ischemic signs. Logistic regression models were used to determine predictors of FLAIR-HAs and the association of FLAIR-HAs with 90-day outcomes: favorable functional outcome (primary; modified Rankin Scale scores, 0–1), other modified Rankin Scale scores, and intracerebral hemorrhage. Results: Prior atrial fibrillation, LVO, large infarct volume, and anterior circulation infarction were independently associated with FLAIR-HAs. The rate of modified Rankin Scale scores 0 to 1 was numerically lower in patients with FLAIR-HAs versus without (69/152 [45.4%] versus 75/131 [57.3%]), as was the subset of LVO (37/93 [39.8%] versus 9/16 [56.3%]), but not in those without LVO (25/36 [69.4%] versus 60/106 [56.6%]). After adjustment for covariables, FLAIR-HAs were independently associated with increased primary outcome (adjusted odds ratio [95% CI]: overall 4.14 [1.63–10.50]; with LVO 4.92 [0.87–27.86]; no LVO 6.16 [1.57–24.14]) despite an increased risk of hemorrhagic infarct (4.77 [1.12–20.26]). Conclusions: FLAIR-HAs are more frequent in acute ischemic stroke with cardioembolic features and indicate potential for a favorable prognosis in thrombolysis-treated patients possibly mediated by LVO. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT01422616.

Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging findings in a patient with relapsing polychondritis

2014 ◽  
Vol 128 (2) ◽  
pp. 192-194 ◽  
Author(s):  
M Kato ◽  
N Katayama ◽  
S Naganawa ◽  
T Nakashima
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Standard Dose ◽  
Three Dimensional ◽  
Relapsing Polychondritis ◽  
Inversion Recovery ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Radiological Report ◽  
Fluid Attenuated Inversion Recovery

AbstractObjective:We report three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging findings in a patient with relapsing polychondritis.Method:Case report.Result:A 76-year-old woman initially presented with bilateral auricular swelling together with dyspnoea. Three months later, she experienced left hearing loss and recurrent vertigo. A biopsy of the auricle was performed and relapsing polychondritis was diagnosed. The patient underwent three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging 4 hours after intravenous injection of a standard dose of gadolinium. Gadolinium enhancement was visible throughout the vestibule and the endolymphatic space could not be visualised, suggesting breakdown of the blood–labyrinth barrier.Conclusion:This is the first radiological report to demonstrate breakdown of the blood–labyrinth barrier in a case of relapsing polychondritis with inner ear impairment.

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