TY - JOUR
T1 - A 3D balanced-SSFP Dixon technique with group-encoded k-space segmentation for breath-held non-contrast-enhanced MR angiography
AU - Saranathan, Manojkumar
AU - Bayram, Ersin
AU - Worters, Pauline W.
AU - Glockner, James F.
N1 - Funding Information:
This work was supported by National Institutes of Health grants R01-EB009055 and P41-RR009784 .
PY - 2012/2
Y1 - 2012/2
N2 - A three-dimensional balanced steady-state free precession (b-SSFP)-Dixon technique with a novel group-encoded k-space segmentation scheme called GUINNESS (Group-encoded Ungated Inversion Nulling for Non-contrast Enhancement in the Steady State) was developed. GUINNESS was evaluated for breath-held non-contrast-enhanced MR angiography of the renal arteries on 18 subjects (6 healthy volunteers, 12 patients) at 3.0 T. The method provided high signal-to-noise and contrast renal angiograms with homogeneous fat and background suppression in short breath-holds on the order of 20 s with high spatial resolution and coverage. GUINNESS has potential as a short breath-hold alternative to conventional respiratory-gated methods, which are often suboptimal in pediatric subjects and patients with significant diaphragmatic drift/sleep apnea.
AB - A three-dimensional balanced steady-state free precession (b-SSFP)-Dixon technique with a novel group-encoded k-space segmentation scheme called GUINNESS (Group-encoded Ungated Inversion Nulling for Non-contrast Enhancement in the Steady State) was developed. GUINNESS was evaluated for breath-held non-contrast-enhanced MR angiography of the renal arteries on 18 subjects (6 healthy volunteers, 12 patients) at 3.0 T. The method provided high signal-to-noise and contrast renal angiograms with homogeneous fat and background suppression in short breath-holds on the order of 20 s with high spatial resolution and coverage. GUINNESS has potential as a short breath-hold alternative to conventional respiratory-gated methods, which are often suboptimal in pediatric subjects and patients with significant diaphragmatic drift/sleep apnea.
KW - Balanced steady-state free precession
KW - Dixon fat-water separation
KW - Non-contrast-enhanced MR angiography
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U2 - 10.1016/j.mri.2011.09.013
DO - 10.1016/j.mri.2011.09.013
M3 - Article
C2 - 22055852
AN - SCOPUS:84855473625
SN - 0730-725X
VL - 30
SP - 158
EP - 164
JO - Magnetic Resonance Imaging
JF - Magnetic Resonance Imaging
IS - 2
ER -