PURPOSE To evaluate the effect of the hybrid RARE (rapid acquisition with relaxation enhancement) readout, commonly coupled to inversion-recovery pulse sequences, on the null inversiton time (TI) of fluid and fat using both phantoms and human volunteers. METHODS Two phantoms, simulating fat (phantom A) and cerebrospinal fluid (phantom B), respectively, were imaged using a fast inversion-recov...

Multiple sclerosis (MS) is the most common chronic inflammatory demyelinating disease of central nervous system (CNS). MS diagnosis and monitoring are mostly based on Magnetic Resonance Imaging (MRI). This study aims to compare a double inversion recovery MRI sequence with fluid-attenuated in Sclerosis brain. A was conducted 75 patients whose aged between 10 70 years who were having brain

Fluid attenuated inversion recovery (FLAIR) with readout-segmented (rs)-EPI Samantha J Holdsworth, Stefan Skare, Kristen Yeom, and Michael E Moseley Lucas Center for Imaging, Department of Radiology, Stanford University, Palo Alto, CA, United States, Clinical Neuroscience, Karolinksa Institute, Stockholm, Sweden, Lucile Packard Children's Hospital, Department of Radiology, Stanford University, ...

OBJECTIVE: The aims of this study were to evaluate the regional effects of type 2 diabetes and associated conditions on cerebral tissue volumes and cerebral blood flow (CBF) regulation. RESEARCH DESIGN AND METHODS: CBF was examined in 26 diabetic (age 61.6 ± 6.6 years) and 25 control subjects (age 60.4 ± 8.6 years) using continuous arterial spin labeling (CASL) imaging during baseline, hyperven...

A new method has been developed for fully automated segmentation of white matter lesions (WMLs) in cranial MR imaging. The algorithm uses information from T1-weighted (T1-w), inversion recovery (IR), proton density-weighted (PD), T2-weighted (T2-w) and fluid attenuation inversion recovery (FLAIR) scans. It is based on the K-Nearest Neighbor (KNN) classification technique that builds a feature s...

The mechanism of cerebral decompression sickness (DCS) is still unclear. We report 2 cases of breath-hold divers with cerebral DCS in whom magnetic resonance imaging (MRI) demonstrated distinctive characteristics. One case presented right hemiparesthesia, diplopia, and gait disturbance after breath-hold diving into the sea at a depth of 20 m. Brain MRI with fluid-attenuated inversion recovery (...

Figure 1. A, Magnetic resonance imaging (MRI) of the brain showing hypersignal in the periventricular and left parietal lobe areas in the fluid attenuation inversion recovery (FLAIR) sequence. B, MRI of the cerebellum showing hypersignal in the cerebellar-peduncle areas in the FLAIR sequence. A 13-year-old boy was evaluated at our hospital for fever and ataxia that ensued 4 weeks after a near-d...

We describe a 62-year-old woman suffering from visual hallucination due to focal status epilepticus investigated by means of Magnetic Resonance Imaging (MRI), Magnetic Resonance Angiography (MRA), Electroencephalography (EEG), and 99m Technetium ethylcysteinate dimer Single Photon Emission Computed Tomography (Tc-99m ECD SPECT). EEG showed spikes in the right parietooccipital area. MRI demonstr...

Intramedullary spinal epidermoid cysts are benign ectopic embryological growths with reported incidence of less than 1% of intramedullary tumors. In this case we report an unusual cervical intramedullary epidermid with liquid contents. A 40-year-old patient presented with progressive weakness of all four limbs of four months duration, bowel and bladder disturbances of two days duration, pain an...