Motion correction using thek-space phase difference of orthogonal acquisitions
نویسندگان
چکیده
منابع مشابه
Motion Correction from Orthogonal k-Space Phase Difference
Introduction It is well known that rigid body translations of an object in MRI will create image artifacts along the phase encode (PE) direction in standard 2-D FT imaging [1]. Methods have been proposed to take advantage of the directionality of the artifacts to improve image quality by combining images with dissimiliar artifact patterns. Two such methods are the orthogonal correlation algorit...
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Diffusion-weighted imaging (DWI) is known to be prone to artifacts related to motion originating from subject movement, cardiac pulsation, and breathing, but also to mechanical issues such as table vibrations. Given the necessity for rigorous quality control and motion correction, users are often left to use simple heuristics to select correction schemes, which involves simple qualitative viewi...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2002
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.10179