Abstract #1877

Performance of Radial Dual-Echo Inversion Recovery SPGR T1 mapping in comparison to SMART1 and MOLLI for the Evaluation of Liver Parenchyma.

Manoj Mathew¹, Zhitao Li², Ali B Syed³, Shreyas S Vasanawala¹, and Ryan L Brunsing¹

¹Department of Radiology, Stanford University, Palo Alto, CA, United States, ²Department of Radiology and Electrical Engineering, Stanford University, Palo Alto, CA, United States, ³Stanford University, Palo Alto, CA, United States

Radial Dual-Echo Inversion Recovery SPGR T1 mapping is a technique that yields water and fat separated parametric maps for the evaluation of T1 values in the liver parenchyma. This novel method can serve as an alternative to SMART1 and MOLLI mapping techniques. From a cohort of 56 patients, we show the rIR-T1 outperforms MOLLI in the differentiation of patients with cirrhosis. We also show that the technique may be advantageous in the evaluation of patients with hepatic steatosis because of the ability to create composite and water-only images that yield T1 values that can better correlate to liver fibrosis.

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