Magnetic Resonance Angiography Using Fresh Blood Imaging in Oral and Maxillofacial Regions
Figure 2
MRA using 2D-PC (a) and 3D-PC (b) in the oral and maxillofacial regions of a healthy 28-year-old volunteer. Three-dimensional (3D) PC-MRA has a better signal-to-noise ratio (SNR) and a better spatial resolution than 2D PC-MRA. (a) On MRA using 2D-PC, mainly the external (arrow) and internal carotid arteries (black arrow) and their branches are shown, but the image quality is low. Acquisition time was 9 minutes and 36 seconds. (b) On MRA using 3D-PC, the external (arrow) and internal carotid (black arrow) and many other branches are seen. The images are higher in quality in the same subject as in Figure 2(a). Acquisition time was 10 minutes and 15 seconds.
