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Abstract #1636

Motion-Corrected Proton Density-Weighted In-Phase Stack-of-Stars (PDIP SOS) FLASH MR Imaging of Kidney Stone Disease

Robert R Edelman1,2, Emily A Aherne1, Sangtae Park3, Jianing Pang4, and Ioannis Koktzoglou1,5

1Radiology, NorthShore University HealthSystem, Evanston, IL, United States, 2Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States, 3Surgery, NorthShore University HealthSystem, Evanston, IL, United States, 4Siemens Medical Solutions USA Inc, Chicago, IL, United States, 5Radiology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States

Kidney stones affect 1 in 11 people in the United States and renal colic resulting from obstructing stones is a frequent cause of emergency department visits. Non-contrast CT of the abdomen and pelvis is the primary imaging test but has the drawback of exposing the patient to potentially significant amounts of ionizing radiation. A motion-corrected proton density-weighted in-phase stack-of-stars (PDIP SOS) FLASH pulse sequence was developed to provide a potential imaging alternative. Using this approach, we have demonstrated for the first time the feasibility of using MRI to detect kidney stones with image quality that is competitive to CT.

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