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Abstract #3629

UTE MRI versus Dual-Energy CT for Imaging Different Kidney Stones Types

El-Sayed H. Ibrahim 1,2 , Robert Pooley 2 , Mellena Bridges 2 , Joseph Cernigliaro 2 , James Williams 3 , and William Haley 2

1 University of Michigan, Ann Arbor, MI, United States, 2 Mayo Clinic, Jacksonville, FL, United States, 3 Indiana Unicersity, IN, United States

CT is established as the method of choice for imaging kidney stones, especially with dual-energy CT (DECT) that can identify uric-acid (UA) from non-UA stones. With the advent of ultra-short echo-time (UTE) MRI, adequate imaging of kidney stones becomes possible. The purpose of this work is to compare MRI versus DECT imaging of 114 kidney stones, representing different stone types and sizes, in phantom experiments using different surrounding materials and scan-setups. The results showed that MRI is capable of imaging kidney stones of different types and sizes. However, no significant differences were observed in relaxation times from different stone types.

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