Abstract #2215

Off-resonance error suppression in MOLLI T1 mapping using a specific CE-FAST

Mostafa Berangi¹, Vahid Ghodrati^2,3, Fereshteh Hasanzadeh⁴, Puria Rafsanjani¹, Zahra Alizade Sani⁵, and Abbas Nasiraei Moghaddam¹

¹Faculty of Biomedical enginnering, AmirKabir University of technology, Tehran, Iran (Islamic Republic of), ²Department of Radiological Sciences, University of California, Los Angeles, CA, United States, ³Biomedical Physics Interdepartmental Program, Los Angeles, CA, United States, ⁴School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences and Health Services, Tehran, Iran (Islamic Republic of), ⁵Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran (Islamic Republic of)

MOLLI is a well-known method for cardiac T1 mapping. Data sampling in MOLLI is based on SSFP readout. It is therefore susceptible to off-resonance which is considered an error source for T1 mapping. We have presented a method to suppress off-resonance variation error in T1 estimation by means of a specific CE-FAST in combination with MOLLI. We have evaluated our method in simulation and Phantom experiment with promising results.

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