A Comparison Study of Vector Velocity, Spectral Doppler and Magnetic Resonance of Blood Flow in the Common Carotid Artery
作者： Andreas Hjelm Brandt , Kristoffer Lindskov Hansen , Caroline Ewertsen , Simon Holbek , Jacob Bjerring Olesen
DOI: 10.1016/J.ULTRASMEDBIO.2018.05.002
关键词:
摘要: Magnetic resonance phase contrast angiography (MRA) is the gold standard for blood flow evaluation. Spectral Doppler ultrasound (SDU) first clinical choice, although method angle dependent. Vector imaging (VFI) an angle-independent method. The aim of study was to compare VFI- and SDU-estimated peak systolic velocities (PSV) common carotid artery (CCA) with PSV obtained by MRA. Furthermore, intra- inter-observer agreement determined. MRA estimates were significantly different from SDU (left CCA: p < 0.001, right p < 0.001), but not VFI p = 0.28, p = 0.18). measured lower in both CCAs compared (p < 0.001) improved precision (VFI: left: 24%, right: 18%; SDU: left 38%, 23%). Intra- almost perfect (inter-observer correlation coefficient: 0.88, 0.91; intra-observer 0.96, 0.97). more accurate than evaluating
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