Reversible cerebral shrinkage in kwashiorkor: an MRI study.

Reversible cerebral shrinkage in kwashiorkor: an MRI study.

Protein energy malnutrition is associated with cerebral atrophy which may be detrimental to intellectual development. The aim of this study was to document the anatomical abnormalities which lead to the appearance of cerebral atrophy using magnetic resonance imaging (MRI) in the acute stage of kwashiorkor and to monitor changes during nutritional rehabilitation. Twelve children aged 6 to 37 mon...

Hyperintense vessels: an early MRI marker of reversible cerebral vasoconstriction syndrome?

Reversible cerebral vasoconstriction syndrome (RCVS) is an increasingly recognized clinical emergency characterized by acute onset of severe headaches (usually multiple thunderclap headaches) and reversible segmental stenosis of cerebral arteries (1). RCVS is associated with several potentially devastating complications or comorbidities, such as posterior reversible encephalopathy syndrome (PRE...

an exploratory study of differential item functioning (dif) in efl reading comprehension

بررسی دلایل عملکرد متفاوت سوالات آزمون درک مطلب به زبان خارجی تاریخچه ی تحقیق درباره ی منابع عملکرد مختلف سوالات (دیف) در آزمون درک مطلب پر است از مجموعه ای از متغیرهای فرضیه ای که چند مورد از مهمترین آنها عبارتند از: جنسیت، آشنایی با موضوع متن، علاقه به موضوع یا محتوای متن، حدس زدن، و عوامل بافت اجتماعی (پی 2004؛ زومبو و گلین 2005). مطالعه حاضر با استناد به فلسفه ی انکارپذیری پوپر عوامل ذکر...

Denoising through wavelet shrinkage: an empirical study

Blood-Oxygenation-Level-Dependent-(BOLD-) Based R2′ MRI Study in Monkey Model of Reversible Middle Cerebral Artery Occlusion

OBJECTIVE To investigate the value of BOLD-based reversible transverse relaxation rate (R2') MRI in detecting ischemic penumbra (IP) in a monkey model of reversible middle cerebral artery occlusion (MCAO) and time evolution of relative R2' (rR2') in infarcted core, IP, and oligemia. MATERIALS AND METHODS 6 monkeys were used to make MCAO by the microcatheter method. MR scans were performed at ...