منابع مشابه
MR Perfusion Imaging
pletion of initial therapy, showing stable post-treatment changes or no significant focal accumulation of tracer on CT, will raise the likelihood of local control to nearly 100%. The corollary of this suggested scenario is that progressive imaging changes or focal tracer accumulation will indicate recurrence in about 75% or more of the cases in which those findings occur. With such high positiv...
متن کاملQuantitative Perfusion Analysis for Transcatheter Intraarterial Perfusion MR Imaging
Introduction: Transcatheter arterial embolization (TAE) and chemoembolization (TACE) are established treatment methods for unresectable liver tumor. TRanscatheter Intraarterial Perfusion (TRIP)-MRI is an intra-procedural technique to monitor liver tumor perfusion changes during TAE [1] and TACE [2]. However, previous developed TRIP-MRI approaches either used semi-quantitative perfusion analyses...
متن کاملVarious patterns of perfusion-weighted MR imaging and MR angiographic findings in hyperacute ischemic stroke.
BACKGROUND AND PURPOSE Various clinical subtypes of patients presenting with sudden-onset ischemic stroke have been recognized, but classification of those types is not simple. We identified various patterns of perfusion-weighted MR imaging and MR angiographic findings in hyperacute ischemic stroke with relation to clinical outcomes. METHODS Twelve patients with symptoms of acute ischemic str...
متن کاملCorrelation of early dynamic CT perfusion imaging with whole-brain MR diffusion and perfusion imaging in acute hemispheric stroke.
BACKGROUND AND PURPOSE Compared with MR imaging, dynamic CT perfusion imaging covers only a fraction of the whole brain. An important assumption is that CT perfusion abnormalities correlate with total ischemic volume. The purpose of our study was to measure the degree of correlation between abnormalities seen on CT perfusion scans and the volumes of abnormality seen on MR diffusion and perfusio...
متن کاملBenefits of perfusion MR imaging relative to diffusion MR imaging in the diagnosis and treatment of hyperacute stroke.
BACKGROUND AND PURPOSE The development of thrombolytic agents for use with compromised cerebral blood flow has made it critical to quickly identify those patients to best treat. We hypothesized that combined diffusion and perfusion MR imaging adds vital diagnostic value for patients for whom the greatest potential benefits exist and far exceeds the diagnostic value of diffusion MR imaging alone...
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ژورنال
عنوان ژورنال: Nosotchu
سال: 2010
ISSN: 0912-0726,1883-1923
DOI: 10.3995/jstroke.32.668