Abstract #0975
Non-contrast enhanced MR angiography in the calf: A comparison between Flow-sensitive dephasing prepared steady-state free precession and quiescent-interval single-shot in patients with diabetes
Hanwei Chen 1 , Na Zhang 2,3 , and Xin Liu 2,3
1
Department of Radiology, Guangzhou Panyu
Central Hospital, Guangzhou, Guangdong, China,
2
Lauterbur
Research Center for Biomedical Imaging, Shenzhen
Institutes of Advanced Technology of Chinese Academy of
Sciences, Shenzhen, Guangdong, China,
3
Shenzhen
Key Laboratory for MRI, Shenzhen, Guangdong, China
Two non-contrast enhanced magnetic resonance angiography
(NCE-MRA) techniques based on steady-state free
precession (SSFP), namely flow-sensitive dephasing (FSD)
and quiescent-interval single-shot (QISS), have been
proposed to achieve higher signal to noise ratio (SNR)
of arterial blood and less flow artifacts existed
inherently in TSE-based NCE-MRA. The purpose of this
study was to compare the image quality and diagnostic
accuracy of the FSD and QISS techniques for the
detection of lower extremity arterial stenosis in a
diabetic patient cohort, using conventional high
resolution contrast-enhanced MRA (CE-MRA) as the
reference standard.
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