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Automated local maximum‐intensity projection with three‐dimensional vessel tracking
Author(s) -
Lin Weili,
Haacke E. Mark,
Smith Alison S.,
Masaryk Thomas J.
Publication year - 1992
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/jmri.1880020509
Subject(s) - maximum intensity projection , contrast (vision) , intensity (physics) , lumen (anatomy) , projection (relational algebra) , computer science , tracking (education) , visualization , noise (video) , computer vision , medicine , biomedical engineering , artificial intelligence , radiology , angiography , surgery , physics , algorithm , psychology , pedagogy , quantum mechanics , image (mathematics)
Despite the simplicity and widespread acceptance of the maximum‐intensity‐projection (MIP) technique for displaying three‐dimensional (3D) magnetic resonance angiographic data, several disadvantages are associated with MIP as it is applied to all of the 3D data. These include elevated noise level, reduced contrast between small vessels and background tissue, and the inability to distinguish arteries from veins. The authors have developed a 3D vessel tracking method combined with a local MIP around a given vessel to complement conventional MIP and alleviate these problems. The method is referred to as a traveling MIP (TMIP). TMIP was evaluated in both patients and healthy volunteers. The results indicate that TMIP provides better contrast between vessels and background tissue, better lumen definition, and better vascular visualization than either MIP or vessel tracking alone.