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MR angiography of the vascular tree from the aorta to the foot: Combining two‐dimensional time‐of‐flight and three‐dimensional contrast‐enhanced imaging
Author(s) -
Li Wei,
Zhang Ming,
Sher Scott,
Edelman Robert R.
Publication year - 2000
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/1522-2586(200012)12:6<884::aid-jmri11>3.0.co;2-c
Subject(s) - maximum intensity projection , magnetic resonance angiography , angiography , contrast (vision) , magnetic resonance imaging , medicine , foot (prosody) , aorta , aortic bifurcation , anatomy , nuclear medicine , radiology , physics , optics , surgery , linguistics , philosophy
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 × 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. © 2000 Wiley‐Liss, Inc.