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Targeted ROTational magnetic resonance angiography (TROTA)
Author(s) -
Goldfarb James W.
Publication year - 2007
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.21360
Subject(s) - maximum intensity projection , imaging phantom , digital subtraction angiography , magnetic resonance angiography , volume rendering , computer science , subtraction , projection (relational algebra) , magnetic resonance imaging , angiography , computer vision , high resolution , rotational angiography , rendering (computer graphics) , physics , nuclear magnetic resonance , artificial intelligence , algorithm , radiology , optics , mathematics , geology , medicine , remote sensing , arithmetic
An MR angiographic method is presented in which a rotating 2D slice is centered on and targets a region or vessel of interest. Collecting a series of slices rotating about the center of the targeted region yields projection data sufficient for the calculation of 3D volumetric data of the region using conventional backprojection reconstruction techniques. These volumetric data depict the internal structure of the vessel and can be processed and displayed with multiplanar reformation, maximum intensity projections, and 3D rendering algorithms. The rotational angiographic acquisition preserves the high temporal resolution of 2D‐MR digital subtraction angiography with the added benefit of 3D reformatting and display. The method is explained in detail and results from phantom and human experiments are presented. Magn Reson Med, 2007. © 2007 Wiley‐Liss, Inc.