Journal of neuroimaging : official journal of the American Society of Neuroimaging
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We sought to examine carotid webs (intimal variant fibromuscular dysplasia) by studying their clinical features and imaging profiles. ⋯ Doppler ultrasound combined with CTA and HRMRI is effective and reliable method to identifying carotid webs, which may be associated with stroke.
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Pediatric nasopharyngeal carcinoma (NPC) is a rare epithelial origin tumor associated with undifferentiated histology, Epstein-Barr virus (EBV) infection, and genetic risk factors. Childhood NPC is usually clinically silent, often presenting with advanced locoregional compromise, including skull base invasion and cervical lymphadenopathy, and has a better prognosis than adult NPC. This article describes computed tomography (CT) and magnetic resonance imaging (MRI) features in a cohort of 28 pediatric NPC patients. ⋯ Although uncommon in pediatric patients, NPC should be in the differential diagnosis of adolescents presenting with a nasopharyngeal mass. Recognizing key imaging characteristics is helpful in the diagnosis of NPC.
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The prevalence and characteristics of intraprocedural back pain is not well studied in awake patients undergoing neuroendovascular procedures. ⋯ The relatively high prevalence of intraprocedural back pain in patients undergoing neuroendovascular procedures in awake state must be recognized, and strategies to reduce the occurrence need to be identified.
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SARS-CoV-2 causes multiorgan disease due to altered coagulability and microangiopathy. Patients may have an increased risk of cerebrovascular accidents (CVA). Our objective was to analyze clinical and neuroimaging characteristics of patients with ischemic CVA during the pandemic peak in our region, in order to identify atypical presentations. ⋯ The COVID-19 group had more in-hospital mortality, less proximal arterial occlusion on CT or MR angiography, and lower baseline modified Rankin Scale score. We suggest a possibly higher proportion of microangiopathic involvement or undetected distal large-vessel occlusion in the COVID-19 stroke group. Excess mortality was explained by severe respiratory failure. Otherwise, stroke patients with COVID-19 did not differ demographically or clinically from those without the illness.
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The identification of high-risk patent foramen ovale (PFO) is important for selecting suitable patients for PFO closure to prevent recurrent stroke in those with cryptogenic stroke. We aimed to evaluate the predictability of transcranial Doppler (TCD) in diagnosing high-risk PFO compared with that of transesophageal echocardiography (TEE), which is not feasible for some stroke patients. ⋯ TCD is a good screening tool for evaluating high-risk PFO. VM is important for the evaluation of PFO. Patients with minimal or no shunt on TCD after VM are unlikely to have high-risk PFO.