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Diagnostic modalities for the diagnosis of acute stroke have increased in number and quality. Magnetic resonance imaging has increasingly become a central tool for the management of patients with stroke. New sequences, such as diffusion and perfusion, provide insight into the infarcted core and the
Auditory magnetic fields evoked by noise/square-wave sequences, presented once every 2.2 s, were recorded in eight subjects who had had a stroke in the auditory cortex or in its vicinity. In two subjects with large temporoparietal lesions, the magnetic 100 ms deflection (N100m) was absent over the
The detection and analysis of visual field defects allows the practitioner to examine some functions of the central nervous system at the bedside. Cerebrovascular accidents and temporal lobe tumours can be diagnosed easily, as can pituitary lesions.
Post-stroke homonymous visual field (PSHVF) loss has functional and driving implications for patients. Automated, as opposed to confrontational, assessment of PSHVF loss has the potential to provide a more reliable indicator for field loss and thus ability to drive. Sixty-one consecutive stroke
A 74-year-old man with vasculopathic risk factors presented to the emergency room with a chief complaint of peripheral vision loss resulting from an intracranial hemorrhage in his right parietal and occipital lobes. Urgent craniotomy and ventriculostomy led to a stable clinical condition with
BACKGROUND
Ultrahigh-field MRI at 8 T offers unprecedented resolution for imaging brain structures and microvasculature.
OBJECTIVE
The aim of this study is to apply high-resolution MRI for stroke imaging and to characterize findings at 1.5 and 8 T.
METHODS
Seventeen subjects with minor ischemic
Stroke is a leading cause of death and disability worldwide. The reasons for increased stroke burden in developing countries are inadequately controlled risk factors resulting from poor public awareness and inadequate infrastructure. Computed tomography and MRI are common neuroimaging modalities
We used magnetoencephalography to evaluate areas of sensory cortex in patients with ischemic strokes involving the somatomotor system. We measured somatosensory evoked magnetic fields using a 7-channel neuromagnetometer and estimated the location of cortical responses to median nerve stimulation in
In the scope of therapeutic ultrasound applications in the adult brain, such as sonothrombolysis in stroke, a better understanding of the intracranial acoustic properties during insonation through the temporal bone is warranted. Innovative ultrasound imaging techniques, like transcranial duplex
BACKGROUND
Homonymous visual field defects (VFD) are common following stroke, and often recover, partially or fully, by unknown mechanisms. In clinical practice, visual field recovered on perimetry is often considered perceptually normal. However, studies have shown contrast sensitivity (CS)
Patients with anosognosia for visual field defect (AVFD) fail to recognize consciously their visual field defect. There is still unclarity whether specific neural correlates are associated with AVFD. We studied AVFD in 54 patients with acute stroke and a visual field defect. Nineteen percent of this