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Magnetic resonance coronary angiography with 3D TrueFISP: breath-hold versus respiratory gated imaging

¹ Department of Diagnostic Radiology and Organ Imaging, ² Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China and ³ Department of Radiology, Northwestern University, Chicago, Illinois, USA

View larger version (134K): [in a new window]   Figure 1. Coronary magnetic resonance angiogram showing mild stenosis at the proximal left anterior descending artery. (a) Breath-hold magnetic resonance angiogram image showing mild stenosis at the origin of the left anterior descending artery (white arrow). (b) Navigator gated magnetic resonance angiogram image showing mild stenosis at the origin of the left anterior descending artery (white arrow). (c) Conventional coronary angiogram image showing mild stenosis at the origin of the left anterior descending artery (white arrow).

View larger version (125K): [in a new window]   Figure 2. True positive case with > 50% luminal narrowing in the left circumflex artery. (a) Breath-hold magnetic resonance angiogram image showing significant stenosis at the proximal left circumflex artery (white arrow). (b) Navigator gated magnetic resonance angiogram image showing significant stenosis at the proximal left circumflex artery (white arrow). (c) Conventional coronary angiogram image showing >50% luminal narrowing at the proximal left circumflex artery (white arrow).