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Abstract #1560

The Capabilities and Limitations of Clinical MRI Sequences for Detecting Kidney Stones. A Retrospective Study

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

1 University of Michigan, Ann Arbor, MI, United States, 2 Mayo Clinic, Jacksonville, FL, United States

Computed tomography is established as the method of choice for kidney stone imaging, albeit its limitation of radiation exposure. However, MRI capability for detecting kidney stones has not been fully investigated, especially due to the stones appearance as non-specific signal void on MRI images. In this work, we conducted a retrospective study to document the performance of currently available MRI techniques for detecting kidney stones and to determine the characteristics of successfully-detected stones. The results show that MRI is capable of detecting about one-fifth of the stones, with stone size (8-mm threshold) and background-contrast as major factors for their visibility.

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