Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Headaches are a universal experience and one of the most common causes for physician consultation. The physician must determine whether a neuroimaging study is warranted to aid in the diagnosis of primary or secondary headaches. ⋯ Neuroimaging has been crucial in the investigation of the pathogenesis of migraine and cluster headaches. Secondary headaches, which may be diagnosed by neuroimaging studies, include subarachnoid hemorrhage, cerebral venous thrombosis, cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy, aqueductal stenosis, and arterial dissection.
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Multicenter Study Clinical Trial Controlled Clinical Trial
Transcranial duplex imaging with a sulfurhexafluoride echocontrast agent: enhancement and diagnostic quality.
The authors investigate characteristics of ultrasound enhancement and diagnostic quality of a sulfurhexafluorides (SF6)-containing echocontrast agent (SonoVue) in cerebrovascular patients with insufficient temporal bone window by transcranial color-coded duplex (TCCD) sonography. ⋯ Administration of SonoVue led to a quality improvement in 21 patients. In TCCD, it optimizes visualization of the cerebral arteries in patients with inadequate bone window. A dose of at least 1.2 mL provides the best enhanced images.
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Acute cerebellitis is one of the main causes of acute cerebellar dysfunction in childhood and may be infectious, postinfectious, or postvaccination. The etiology of acute cerebellitis is usually viral. ⋯ The authors present the clinical and neuroimaging findings of 2 patients presenting with acute cerebellitis. Their magnetic resonance imaging showed hyperintense signal of cerebellar gray matter in T2-weighted sequences, which is a strong indication of a diagnosis of acute cerebellitis.
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A 71-year-old man with symptomatic basilar artery stenosis refractory to antiplatelet therapy and anticoagulation underwent angioplasty and stenting of the basilar artery. The patient was discharged symptom-free on clodiprogel 75 mg qd and aspirin 325 mg qd. ⋯ Its role in the therapy of symptomatic basilar artery stenosis is not yet defined. Furthermore, the best medical treatment postprocedure is yet to be established.
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NC100100 (Sonazoid) is a new perfluorocarbon-based ultrasound contrast agent (UCA) that has not been introduced to transcranial harmonic imaging. ⋯ The new UCA Sonazoid is suitable for displaying brain perfusion. As already observed for other UCAs, gray-scale harmonic imaging with Sonazoid leads to a more homogeneous contrast increase in cerebral parenchyma compared to harmonic power Doppler imaging. Sonazoid produces a moderate shadowing effect, with signal attenuation in the underlying deeper regions of interest.