Russell Norman Low1,2, Matthew J. Austin3,
Lloyd Estkowski4, Richard Ehman5
1Sharp and Children's MRI Center, San
Diego, CA, United States; 2San Diego Imaging, San Diego, CA,
United States; 3Radiology, Universit y of California at San Diego,
San Diego, CA, United States; 4General Electric Healthcare; 5Mayo
Clinic
We
present our intial clinical experience using MR elastography in oncology
patients to depict peritoneal tumor. Peritoneal tumors in the upper abdomen
demonstrated increased mean shear stiffness compared to the liver as was
depicted on color encoded spatial maps. On a per patient basis MRE
demonstrated a .87 sensitivity, .78 specifity, and .82 accurcy. In the
quantitative anlysis the mean shear stiffness of peritoneal tumor was 4.43
kPA and the mean shear stiffness of the adjancent liver was 2.36 kPa.