Echo-planar FLAIR imaging in evaluation of intracranial lesions.
نویسندگان
چکیده
منابع مشابه
Echo-planar imaging.
Echo-planar imaging is a fast magnetic resonance (MR) imaging technique that allows acquisition of single images in as little as 20 msec and performance of multiple-image studies in as little as 20 seconds. Echo-planar imaging achieves its speed by obtaining all spatial-encoding information after a single radio-frequency (RF) excitation. Conventional imaging requires multiple-RF excitations, se...
متن کاملQuantitative MR evaluation of intracranial epidermoid tumors by fast fluid-attenuated inversion recovery imaging and echo-planar diffusion-weighted imaging.
BACKGROUND AND PURPOSE Quantification of MR can provide objective, accurate criteria for evaluation of a given MR sequence. We quantitatively compared conventional MR sequences with fast fluid-attenuated inversion recovery (fast-FLAIR) and echo-planar diffusion-weighted (DW) MR imaging in the examination of intracranial epidermoid tumors. METHODS Eight patients with surgically confirmed intra...
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Interleaved echo-planar imaging (EPI) is an ultrafast imaging technique important for applications that require high time resolution or short total acquisition times. Unfortunately, EPI is prone to significant ghosting artifacts, resulting primarily from system time delays that cause data matrix misregistration. In this work, it is shown mathematically and experimentally that system time delays...
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The recently established single-shot technique of echo-planar imaging of intravoxel incoherent motion (IVIM) for determining and imaging the variations of microscopic motions of water has been applied to studies of water perfusion in phantoms and to in vivo studies of diffusion and perfusion in cat and human brains. The phantom results demonstrate that perfusion levels comparable with those fou...
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Y. Bito, T. Shirai, S. Hirata, Y. Taniguchi, K. Hirata, Y. Otake, Y. Soutome, H. Ochi, T. Ebisu, Y. Kawai, M. Umeda, T. Higuchi, and C. Tanaka Central Research Laboratory, Hitachi, Ltd., Kokubunji-shi, Tokyo, Japan, Neurosurgery, Nantan General Hospital, Kyoto, Japan, Medical Informatics, Meiji University of Integrative Medicine, Kyoto, Japan, Neurosurgery, Meiji University of Integrative Medic...
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ژورنال
عنوان ژورنال: RadioGraphics
سال: 1996
ISSN: 0271-5333,1527-1323
DOI: 10.1148/radiographics.16.3.8897625