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| DELTA IMAGING AND HEART CENTRE |
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| VASCULAR |
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Time of flight
2D or 3D mode time-of-flight (Tof) techniques are valuable in fast-flow vessels(Circle of willis) or vessels
of length Since the time-of-flight sequence may be gated to teh cardiac cycle, they are also excellent for
imaging pulsatile vessels.
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| Non-gated 2d time-of-flight of carotid ateries with ablique
sagittal MIP and single native axial image demonstrating
excellent contrast between flowing blood and stationary
tissues. |
Gated 2D time-of-flight of trifurcation.
Pulsatile motion of these vassels is
frozen by applying cardic gating. |
Steady-state free precession
Steady-state free precission (SSFP) pulse sequence, such as 2D and 3D FIESTA, inherently provide a
bright blood image and may be achieved in breath-hold scan times. Rather than relying on blood flow
through the slice or volume, anatomy is scanned in the plane of interest. This permits high-in-plane
resolution in short scan times, particularly with the 2D technique.
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| 2D Fat Sat Fiesta breath-hold image with
excellent depiction of the portal vein (arrow). |
2D Fat Fiesta of the renal arteries with
excellent inplane resolution. Pixal size
<1 mm in both directions. |
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