Prematurity and brain perfusion: Arterial spin labeling MRI
نویسندگان
چکیده
منابع مشابه
Prematurity and brain perfusion: Arterial spin labeling MRI
PURPOSE Abnormal brain perfusion is a critical mechanism in neonatal brain injury. The aim of the present study was to compare Cerebral Blood Flow (CBF) evaluated with ASL MRI in three groups of neonates: preterms without brain lesions on MRI (PN), preterms with periventricular white matter lesions (PNp) and term neonates with normal MRI (TN). The correlation between CBF and clinical outcome wa...
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INTRODUCTION. Many approaches have been applied to evaluate brain perfusion in neonates: brain ultrasound, near-infrared spectroscopy, and positron emission tomography (PET). However perfusion weighted imaging (PWI) MRI has been shown to enable in vivo direct measurements of brain perfusion in different brain regions. Recent advances have lead to the development of non-contrast agent based Arte...
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Perfusion is a physiological parameter that refers to the delivery of oxygen and nutrients to tissues via the flow of blood (1). Cerebral blood flow (CBF) is generally quantified in terms of milliliters of blood per gram of tissue per second ml/g/sec (2). Perfusion measurements provide information regarding tissue viability and function, and are therefore of fundamental significance in the fiel...
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Normal aging is associated with diminished brain perfusion measured as cerebral blood flow (CBF), but previously it is difficult to accurately measure various aspects of perfusion hemodynamics including: bolus arrival times and delays through small arterioles, expressed as arterial-arteriole transit time. To study hemodynamics in greater detail, volumetric arterial spin labeling MRI with variab...
متن کاملStability of MR brain-perfusion measurement using arterial spin labeling
Helmholtz-Center DresdenRossendorf, PET Center, Institute of Radiopharmaceutical Cancer Research, Germany Arterial spin labeling (ASL) is an MR technique for assessment of cerebral blood flow (CBF) that does not require use of contrast agents which makes it a less invasive alternative to the 15O-H2O-PET measurement. The repeatability of ASL has been studied extensively but mainly in young healt...
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ژورنال
عنوان ژورنال: NeuroImage: Clinical
سال: 2017
ISSN: 2213-1582
DOI: 10.1016/j.nicl.2017.05.023