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Abstract #1142

Single Cardiac Cycle Multipoint T1 Mapping with Radial Acquisition

David Chen1, 2, Behzad Sharif1, Louise Thomson1, 3, Troy LaBounty1, Rohan Dharmakumar1, 3, Daniel Berman1, 3, Debiao Li1

1Cedars Sinai Medical Center, Los Angeles, CA, United States; 2Northwestern University, Evanston, IL, United States; 3University of California, Los Angeles, CA, United States

This work describes method to correct for saturation in the arterial input function (AIF) for cardiac perfusion using a multi-shot radially acquired data. Single cardiac cycle resolution T1 mapping is possible with this technique. T1 can then be converted to Gd concentration. This method eliminates the need to acquire two datasets, increasing feasibility for clinical use.

Keywords

accurate acquiring acquisition agent approval arterial artifacts blood boluses cardiac cause clinical coil collected columns comparing concentration consent constraint contrast converted corrected coverage curves cycle datasets delay density depends dial diastolic doses drawn dual encoded enhancement especially exercise expand feasibility fitting flash function heart improved in vivo instead intensity interleaved interval know lash long mens motion myocardial need pass peak perfusion phys pixel pool position preparation problem procedure projections proposed proton quired radial reconstruction recovers recovery require residual respectively rest sacrificed sampled sampling saturation series short shot sign significantly simple solving starts subsequent susceptible though troy truncation uncorrected underwent unfortunately variations wash window wing written yields