Abstract #0183
Modified Wideband 3D Late Gadolinium Enhancement (LGE) MRI for Patients with Implantable Cardiac Devices
Shams Rashid 1 , Stanislas Rapacchi 1 , Kalyanam Shivkumar 1,2 , Adam Plotnik 1 , J. Paul Finn 1,3 , and Peng Hu 1,3
1
Radiological Sciences, University of
California, Los Angeles, Los Angeles, CA, United States,
2
UCLA
Cardiac Arrhythmia Center, University of California, Los
Angeles, Los Angeles, CA, United States,
3
Biomedical
Physics Inter-Departmental Graduate Program, University
of California, Los Angeles, Los Angeles, CA, United
States
We have modified a 3D LGE sequence for LGE cardiac MRI
of patients with implanted cardiac devices by
implementing a wideband inversion pulse and increasing
the RF excitation pulse bandwidth. We show reduced
hyper-intensity artifacts due to the wideband inversion
pulse. We also show that the conventional 3D LGE
sequence produces artifacts due to slab profile
distortion, which are reduced by increasing the
bandwidth of the RF excitation pulse. We present results
from phantom, volunteer and patient studies.
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