Abstract
Introduction A noncontrast MRA technique using ECG-triggered 3D bSSFP with FSD preparation has recently been developed (Fig. 1) [1]. The angiographic quality relies on the blood signal suppression by FSD preparation, which is in turn determined by FSD's first-order gradient moment, m1. A suboptimal m1 may result in venous contamination or incomplete arterial delineation. This work aimed to develop an m1-scout approach to rapidly identify the optimal m1-value.
Highlights
A noncontrast MRA technique using ECG-triggered 3D bSSFP with FSD preparation has recently been developed (Fig. 1) [1]
The angiographic quality relies on the blood signal suppression by FSD preparation, which is in turn determined by FSD's first-order gradient moment, m1
A 2D FSDbSSFP scan, as m1-scout, acquired 11 images with incremental m1 values (0.9-mm in-plane and 5-mm slice-thickness) (Fig. 2). 3D FSD-bSSFP imaging was repeated with 6 selected m1-values (0.9-mm isotropic)
Summary
A noncontrast MRA technique using ECG-triggered 3D bSSFP with FSD preparation has recently been developed (Fig. 1) [1]. The angiographic quality relies on the blood signal suppression by FSD preparation, which is in turn determined by FSD's first-order gradient moment, m1. A suboptimal m1 may result in venous contamination or incomplete arterial delineation. This work aimed to develop an m1-scout approach to rapidly identify the optimal m1-value
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