Abstract #2151
Hepatic MR Elastography by Using Optimized Flexible Drivers
Jun Chen 1 , Kevin Glaser 1 , Meng Yin 1 , Jayant Talwalkar 1 , Phillip Rossman 1 , Sudhakar Venkatesh 1 , and Richard Ehman 1
1
Mayo Clinic, Rochester, MN, United States
Hepatic MR Elastography (MRE) is an accurate noninvasive
method for detecting liver fibrosis. Conventional
drivers for hepatic MRE are usually rigid, but human
bodies are soft and contoured. Therefore, the mechanical
coupling between rigid drivers and human body is often
not optimal, resulting in potential issues such as wave
interferences in the liver. Previous developed hepatic
flexible driver was optimized in this study for higher
efficiency. Patients with a large range of liver
fibrosis stage underwent MRE with both the flexible and
rigid drivers. The mean difference was 0.11kPa,
indicating that both drivers are equivalent for
measuring liver stiffness.
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