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L.Y., a 34-year old woman with a long history of alcoholism, was admitted to hospital as a result of rapidly increasing confusion. On examination, the patient was found to be disoriented with left hemiparesis. CT in the emergency room with and without contrast medium showed abnormal hypodensities of the entire corpus callogum, which appeared to be expanded(More)
BACKGROUND AND PURPOSE The noninvasive diagnosis of cerebral vasospasm with the use of conventional transcranial Doppler ultrasonography (TCD) is based on a velocity study of the middle cerebral artery (MCA). The authors report a prospective comparative study between transcranial color-coded sonography (TCCS), conventional transcranial Doppler (TCD), and(More)
The principal aim of our study was to establish concordance between post-mortem CT (PMCT) and forensic standard autopsy (SA) in detecting lesions according to different anatomical regions. A secondary aim was to determine the efficacy of PMCT in showing lethal lesions. PMCTs were compared with autopsies in 236 cadavers in different contexts of death. PMCT(More)
A 29-year-old woman presented with dilated epidural veins and incapacitating headache after undergoing a lumbar puncture. Two months later, the results of follow-up MR imaging were normal. These findings suggest that temporary dilation of the epidural vein may occur in association with post-lumbar puncture intracranial hypotension syndrome. In these cases,(More)
ltrasonography not only permits a detailed assessment of peripheral nerves but also is useful for intrinsic nerve abnormality detection, as in peripheral nerve enlargement (eg, in trauma, peripheral nerve sheath tumors, and nerve compression). Ultrasonography can also be used to locate nerve compression due to an extrinsic factor (eg, compression of the(More)
Cervical epidural hematomas are rare entities [1-6] that can develop from such causes as trauma, arteriovenous malformations, coagulation disturbances, pregnancy, and neoplasms. In most cases, however, they occur spontaneously or without evident cause. As vital and neurologic prognoses are unpredictable upon admission, these hematomas are considered to be(More)
We prospectively correlated the findings of magnetic resonance angiography (MRA) with those of transfemoral four-vessel angiography in 54 patients to investigate the direction of flow within the circle of Willis. Our primary goal was to assess the direction of flow using the size of the vessel and signal intensity, without saturation techniques. Analysis of(More)