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Interactive selection of optimal section orientations using real‐time MRI
Author(s) -
Hangiandreou Nicholas J.,
Debbins Josef P.,
Rossman Phillip J.,
Riederer Stephen J.
Publication year - 1995
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.1910340117
Subject(s) - offset (computer science) , computer science , real time mri , rotation (mathematics) , computer vision , oblique case , artificial intelligence , section (typography) , orientation (vector space) , portal vein , computer graphics (images) , magnetic resonance imaging , mathematics , geometry , radiology , medicine , linguistics , philosophy , programming language , operating system
In applications where precise image section positioning is vital, the interactive section rotation and offset capabilities of interactive MRI should be valuable. However, due to the independent nature of these two adjustments, the desired structure may often not be visible in the image after a rotation. Valuable time is wasted during relocation. An algorithm is presented that automatically alters the section offset after a rotation to provide continuous viewing of a marked structure, greatly improving section orientation efficiency. The technique is illustrated in the determination of double oblique angulation for through‐plane imaging of the portal vein. This algorithm is expected to prove useful in applications of interactive MRI requiring precise positioning.