MRI-ASL perfusion imaging -evaluation in pediatric brain and moyamoya disease-

点击翻译按钮获取中文摘要

1.Cerebral blood flow in MRI-ASL (FAIR) perfusion imaging2.SPIO Brain Perfusion Imaging : Intraindividually Controlled Randomized Crossover Comparison Study of SPIO versus GdOur results showed a clinical equivalence of perfusion imaging using SPIO and Gd.3.MRI-ASL (FAIR) perfusion imaging : Intraindividually Controlled Randomized Crossover Comparison Study of FAIR versus Gd perfusionOur results indicate that good contrast between the cortex and white matter in both FAIR and Gd perfusion. Good positive relation ship was seen between in FAIR and in the relative blood flow or blood volume in Gd perfusion (r = 0.78 and 0.448, respectively).4.MRI-ASL (FAIR) perfusion imaging in the developing brainRegional pattern of the cerebral bloofd flow derived from FAIR was similar to the PET data reported in the previous literatures, however low signal to noise ratio in FAIR image paused a problem.5.Posterior Circulation and Ischemic Stroke in Pediatric Moyamoya DiseaseOur results indicate that reduced leptomeningeal collaterals from affected posterior cerebral artery are closely related to completed strokes rather than transient ischmic attask and transdural collaterals may not be sufficient to compensate for reduced leptomeningeal collaterals. The early involvement of posterior cerebral artery in hemispheres with the less advanced internal carotid artery lesions might be resposnsible for the high prevalence of completed strokes in young children.