MR angiography of the vascular tree from the aorta to the foot: Combining two-dimensional time-of-flight and three-dimensional contrast-enhanced imaging

✍ Scribed by Wei Li; Ming Zhang; Scott Sher; Robert R. Edelman

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 283 KB
• Volume: 12
• Category: Article
• ISSN: 1053-1807
• DOI: 10.1002/1522-2586(200012)12:6<884::aid-jmri11>3.0.co;2-c

✦ Synopsis

A composite approach for magnetic resonance (MR) angiography of the lower extremities is described. Thirty patients were studied with this approach, which combined a two-dimensional (2D) time-of-flight (TOF) technique with a 3D contrast-enhanced technique. A head/neck coil was selected for imaging mid-foot to upper calf, and the body coil was used for the remainder of the peripheral vascular tree. Acquired data were transferred to a workstation for postprocessing. The final maximum intensity projection images, which display the entire vascular anatomy from aortic bifurcation to foot, were created using a 1024 x 1024 matrix. Very small arteries can be differentiated in critical regions like the calf and foot. Compared with TOF-2D alone, the scan time was reduced. This method offers another option for MR angiography of the lower extremities. J. Magn. Reson. Imaging 2000;12:884-889.