Multishot diffusion-weighted FSE using PROPELLER MRI. |
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Authors: | James G Pipe Victoria G Farthing Kirsten P Forbes |
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Institution: | MRI Department, Barrow Neurological Institute, Phoenix, Arizona 85013, USA. |
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Abstract: | A method for obtaining diffusion-weighted images that are free from the artifacts associated with echo-planar acquisitions, such as signal pile-up and geometric warping, is introduced. It uses an ungated, multishot fast spin-echo (FSE) acquisition that is self-navigated. The phase of the refocusing pulses is alternated to minimize non-Carr-Purcell-Meiboom-Gill (CPMG) artifacts. Several reconstruction methods are combined to make this method robust against motion artifacts. Examples are shown of clinical diffusion-weighted imaging and high-resolution diffusion tensor imaging. |
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Keywords: | diffusion stroke fast spin‐echo tensor |
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