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NMR angiography of coronary vessels with 2‐D planar image scanning
Author(s) -
Cho Z. H.,
Mun C. W.,
Friedenberg R. M.
Publication year - 1991
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.1910200114
Subject(s) - synchronizing , artifact (error) , planar , descending aorta , cardiac cycle , coronary arteries , materials science , medicine , nuclear magnetic resonance , nuclear medicine , aorta , artery , computer science , artificial intelligence , physics , cardiology , telecommunications , computer graphics (images) , transmission (telecommunications)
On the basis of the principles of the time‐of‐flight method and the 3‐D angiogram obtained by the 2‐D planar image scanning technique using 90° RF pulses with short repetition time, we have obtained a coronary angiogram around the heart including the coronary arteries and veins. The cine NMR imaging technique is also incorporated in synchronizing ECG R waves to reduce the motion artifact and at the same time to induce the saturation effect on the static samples. Images of the large bulk blood flow corresponding to the heart chamber and descending aorta are further removed by postprocessing. The final 3‐D angiogram is then formed by stacking the 2‐D images and contrast is further enhanced by the maximum ray tracing algorithm. © 1991 Academic Press, Inc.