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Double inversion recovery (DIR) MRI sequence is a method to suppress signals from cerebral spinal fluid (CSF) and white matter in the brain simultaneously, by applying two inversion pulses with two different inversion times (TI). This allows the DIR to increase image contrast between gray and white matter (13, 14). So, a brain lesion can be
10 cze 2014 · The purpose of this study was to establish the feasibility of a fast MR protocol that can be obtained in ≈6 minutes rivaling that of any comprehensive acute stroke CT protocol. We describe the technical aspects and present our initial clinical experience using this protocol.
24 gru 2009 · In this review, we describe the use of MRI and its associated challenges to measure vascular and neuronal remodeling in response to spontaneous and therapy-induced stroke recovery. We demonstrate that MRI methodologies may be used in real-time monitoring of recovery from stroke.
1 cze 2014 · MR-RESCUE, 35 an ongoing study, aims to test both a similar DPM protocol in combination with treatment by using the Merci retriever (Concentric Medical, Mountain View, California) versus placebo up to 8 hours after stroke onset.
1 kwi 1999 · The mMRI protocol includes an axial T2-W fast-spin-echo sequence, an axial fluid-attenuated inversion recovery (FLAIR) EPI sequence, an axial isotropic DWI SE EPI sequence, time-of-flight MR angiography, and PWI with an axial T2*-W gradient echo EPI sequence (40 data sets during and after injection of 25 mL Gd-DTPA (Magnevist, Schering AG) with ...
16 lut 2022 · The routine clinical MRI protocol at our hospital for nonhyperacute work-up of suspected stroke has an acquisition time of 9.8 minutes. However, reducing acquisition time from 9.8 to 1.6 minutes does not result in a 5-fold reduction of overall exam time.
30 kwi 2014 · Introduction. Focal or general neurological symptoms of a vascular origin termed “stroke” can be based on cerebral ischemia and on intracerebral or subarachnoid hemorrhage (SAH). Thunderclap headache and generalized symptoms point to SAH. Hemiparesis, visual or speech disturbance are typical symptoms of both ischemia and parenchymal hemorrhage.
