Meeting Banner
Abstract #1286

A Single-Shot Inflow-Based Approach to Simultaneous Non-Contrast-Enhanced MRA and MRV

Daniel V. Litwiller1, Dan W. Rettmann1, Mahdi S. Rahimi2, Harald Kramer3, James F. Glockner4, Frank R. Korosec5, James H. Holmes6

1Global Applied Science Laboratory, GE Healthcare, Rochester, MN, United States; 2Biomedical Engineering, University of Wisconsin, Madison, WI, United States; 3Radiology, University of Wisconsin, Madison, WI, United States; 4Department of Radiology, Mayo Clinic, Rochester, MN, United States; 5Radiology and Medical Physics, University of Wisconsin, Madison, WI, United States; 6Global Applied Science Laboratory, GE Healthcare, Madison, WI, United States

Inflow-based angiography techniques, such as time-of-flight (TOF), inflow inversion-recovery (IFIR), and quiescent-inflow single-shot (QISS), preferentially select for a single direction of vascular flow. Here, we propose an interleaved, QISS-based approach to the simultaneous acquisition of directionally-opposed arterial and venous signal in the lower extremities, which results in the formation of two independent, two-dimensional images per heartbeat. We believe this strategy may allow the detection of additional, clinically-relevant features, such as venous compression and/or thrombus without adding scan time or compromising quality and robustness of the original QISS MRA.

Abstract PDF Poster PDF

Keywords

acceleration acquiring acquisition acquisitions adding addition additional allow allowing allows although anatomy angiography applications applied arterial arteries asset audience avoided axial band bandwidth believe biomedical cardiac channel clinic clinical clinically clinicians coil common comparable compression compromising consistent contrast coronal counter coverage detection developed dimensional directed directionally disease efforts engineering enhanced evaluate excitation explored extremities feasibility features five flight flow formation frank full generally global half healthy heartbeat iliac independent independently inferior inflow inflowing intensity interactions interleaving inversion knee laboratory located location matrix mayo medical need neurological offset offsetting opposed original overlap parallel pathways performance peripheral physics prepared previously progressed projections pulses quality quiescent radiology receive recovery relevant rely reported representative required robust robustness sacrificing saturation scanned science scientists select sequentially shot similarly simultaneous simultaneously slice standalone steady superior superiorly supplement suppress suppression syndrome system target thrombus timing tortuous tracking twice underway undesirable variables vascular vein veins venous visualization visualized volunteer volunteers