TY - JOUR
T1 - Three-dimensional fluid-suppressed T2-prep flow-independent peripheral angiography using balanced SSFP
AU - Bangerter, Neal K.
AU - Cukur, Tolga
AU - Hargreaves, Brian A.
AU - Hu, Bob S.
AU - Brittain, Jean H.
AU - Park, Danny
AU - Gold, Garry E.
AU - Nishimura, Dwight G.
PY - 2011/10
Y1 - 2011/10
N2 - Accurate depiction of the vessels of the lower leg, foot or hand benefits from suppression of bright MR signal from lipid (such as bone marrow) and long-T1 fluid (such as synovial fluid and edema). Signal independence of blood flow velocities, good arterial/muscle contrast and arterial/venous separation are also desirable. The high SNR, short scan times and flow properties of balanced steady-state free precession (SSFP) make it an excellent candidate for flow-independent angiography. In this work, a new magnetization-prepared 3D SSFP sequence for flow-independent peripheral angiography is presented. The technique combines a number of component techniques (phase-sensitive fat detection, inversion recovery, T2-preparation and square-spiral phase-encode ordering) to achieve high-contrast peripheral angiograms at only a modest scan time penalty over simple 3D SSFP. The technique is described in detail, a parameter optimization performed and preliminary results presented achieving high contrast and 1-mm isotropic resolution in a normal foot.
AB - Accurate depiction of the vessels of the lower leg, foot or hand benefits from suppression of bright MR signal from lipid (such as bone marrow) and long-T1 fluid (such as synovial fluid and edema). Signal independence of blood flow velocities, good arterial/muscle contrast and arterial/venous separation are also desirable. The high SNR, short scan times and flow properties of balanced steady-state free precession (SSFP) make it an excellent candidate for flow-independent angiography. In this work, a new magnetization-prepared 3D SSFP sequence for flow-independent peripheral angiography is presented. The technique combines a number of component techniques (phase-sensitive fat detection, inversion recovery, T2-preparation and square-spiral phase-encode ordering) to achieve high-contrast peripheral angiograms at only a modest scan time penalty over simple 3D SSFP. The technique is described in detail, a parameter optimization performed and preliminary results presented achieving high contrast and 1-mm isotropic resolution in a normal foot.
KW - Fluid suppression
KW - Peripheral angiography
KW - SSFP
UR - http://www.scopus.com/inward/record.url?scp=80052633290&partnerID=8YFLogxK
U2 - 10.1016/j.mri.2011.04.007
DO - 10.1016/j.mri.2011.04.007
M3 - Article
C2 - 21705166
AN - SCOPUS:80052633290
SN - 0730-725X
VL - 29
SP - 1119
EP - 1124
JO - Magnetic Resonance Imaging
JF - Magnetic Resonance Imaging
IS - 8
ER -