PURPOSE To increase the sensitivity of 3-dimensional fluid-attenuated inversion recovery (3D-FLAIR) to low concentration gadolinium (Gd)-based contrast medium, we optimized sequence parameters on a phantom and evaluated the optimized sequence in patients suspicious for endolymphatic hydrops. MATERIALS AND METHODS All scans were performed on a 3-tesla magnetic resonance (MR) unit using a 32-ch...

OBJECTIVE The aim of this study was to evaluate the differences in normal brain MRI findings between under 3.0 Tesla (T) and 1.5T MRI conditions with the use of the fluid attenuated inversion recovery (FLAIR) sequences. MATERIALS AND METHODS Eleven normal adults underwent imaging with the use of the FLAIR sequences on both 1.5T and 3.0T scanners. Two neuroradiologists compared the signal inte...

In veterinary medicine, patients undergo magnetic resonance imaging (MRI) under general anesthesia to enable acquisition of artifact-free images. The fraction of inspired oxygen (FiO2) ranges between 30 and 95%. In humans, a high FiO2 is associated with incomplete signal suppression of peripheral cerebrospinal fluid (CSF) spaces on T2-weighted fluid-attenuated inversion recovery (T2w-FLAIR) seq...

PURPOSE To evaluate whether adding a contrast-enhanced fluid-attenuated inversion recovery (FLAIR) sequence to routine magnetic resonance imaging (MRI) can detect additional abnormalities in the brains of symptomatic patients with mild traumatic brain injury. MATERIALS AND METHODS Fifty-four patients with persistent symptoms following mild closed head injury were included in our retrospective...

OBJECTIVES Intracerebral hemorrhage (ICH) remains a serious complication in ischemic stroke patients undergoing systemic thrombolysis. Here, we examined whether the risk of treatment-associated hemorrhage can be predicted from magnetic resonance imaging (MRI) using fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging (DWI) within 3 h after symptom onset. METHODS In this ...

INTRODUCTION: Quantification of white matter lesion progression is of major interest in MR imaging of the human brain for the diagnosis and monitoring of several diseases like Multiple Sclerosis or Alzheimer’s disease. T1 (T1w) and T2 (T2w) weighted images may provide insufficient tissue contrast for accurate segmentation of lesions. The Fluid Attenuated Inversion Recovery (FLAIR) sequence is o...

PURPOSE To evaluate the cranial pachymeningeal involvement of polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin changes (POEMS) syndrome using pre- and post-contrast fluid-attenuated inversion recovery (FLAIR) and T1-weighted imaging (T1WI). METHODS The appearance of pachymeningeal involvement in nine cases of POEMS syndrome was evaluated using pre- and post-contrast F...

BACKGROUND AND PURPOSE Some authors use FLAIR imaging to select patients for stroke treatment. However, the effect of hyperintensity on FLAIR images on outcome and bleeding has been addressed in only few studies with conflicting results. METHODS 466 patients with anterior circulation strokes were included in this study. They all were examined with MRI before intravenous or endovascular treatm...

BACKGROUND AND PURPOSE FLAIR-hyperintense vessels are known to be a sign of sluggish collateral blood flow in hemispheric vessel occlusion. Additionally, they seem to have a prognostic implication. The aim of the current study was to evaluate the hyperintense configuration of the basilar artery (FLAIR-hyperintense basilar artery) as a marker of basilar artery occlusion and as a predictor of pat...

OBJECTIVES Aim of this study was to compare the utility of susceptibility weighted imaging (SWI) with the established diagnostic techniques CT and fluid attenuated inversion recovery (FLAIR) in their detecting capacity of subarachnoid hemorrhage (SAH), and further to compare the combined SWI/FLAIR MRI data with CT to evaluate whether MRI is more accurate than CT. METHODS Twenty-five patients ...