Each of the three applications of EPI provides complementary information to routine brain MRI protocols that rely heavily on MS-MRI. The fact that each application images the brain may suggest a limitation of EPI in other body parts. Although EPI is capable of freezing motion in the abdomen, 31,32 artifacts from susceptibility and chemical shift has limited the clinical use of EPI outside the brain (figure 5). In clinical evaluation of the abdomen (and chest), SE-SS-MRI, although slightly slower than EPI, has predominated, primarily because of the better image quality.
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