Abstract #2674
QISS UTE: Quiescent-Inflow Single-Shot MRA of the Peripheral Arteries using an Ultra-Short Echo Time Readout
Robert R. Edelman 1,2 , Shivraman Giri 3 , Ian Murphy 2 , Kieran O'Brien 4 , Matthew D. Robson 5 , and Ioannis Koktzoglou 1,6
1
Radiology, NorthShore University
HealthSystem, Evanston, Illinois, United States,
2
Radiology,
Feinberg School of Medicine, Northwestern University,
Chicago, Illinois, United States,
3
Siemens
Healthcare, Chicago, Illinois, United States,
4
Siemens
Healthcare, Switzerland,
5
Department
of Cardiovascular Medicine, Oxford University, Oxford,
United Kingdom,
6
Radiology,
Pritzker School of Medicine, University of Chicago,
Chicago, Illinois, United States
In patients with peripheral arterial disease and
impaired renal function, quiescent-interval single-shot
(QISS) MRA using a balanced steady-state free precession
(bSSFP) readout has proven to be an accurate and useful
alternative to contrast-enhanced MRA and CT angiography.
However, the use of a bSSFP readout makes the technique
sensitive to off-resonance effects, as may occur in the
vicinity of orthopedic hardware such as fixation screws
or metallic prostheses. Moreover, the bSSFP readout is
potentially sensitive to artifacts from flow turbulence
caused by a severe stenosis. In order to overcome these
limitations, we tested the feasibility of incorporating
an ultra-short echo (UTE) readout into QISS MRA.
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