Transcription of Common MRI artifacts and how to fix them
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Common MRI artifacts and how to fix them
Common MRI artifacts and how to fix themJason StockmannMartinosCenter Why-N-How seminarDecember 14, 2017 Acknowledgements Most of the slides borrowed from the lecture notes of Lawrence Wald, Todd Constable, and Doug NollWhy does MRI have such a wide variety of image artifacts ? MRI requires seamless integration and interplay of magnet, gradient coil system, RF system, and pulse sequence computer, each of which is a complicated subsystem. Human body also interacts with RF and B0magnetic fields both static and dynamic (physiological) effects MRI Physicists spend their time developing new methods and dealing with artifactsVery old !How kind of artifact is PhysicistMRI physicist = Professional artifact hunterLearn how to pinpoint where the source of your artifact is hidden in the k-space domain.
Why does MRI have such a wide variety of image artifacts? • MRI requires seamless integration and interplay of magnet, gradient coil system, RF system, and pulse sequence computer, each of which is a complicated subsystem. • Human body also interacts with RF and B 0 magnetic fields both static and dynamic (physiological) effects
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