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- W2019959217 abstract "Abstract Purpose To evaluate whether dynamic imaging of the coronary arteries can be performed with intracoronary infusion of low‐dose gadolinium (Gd)‐based contrast agent and assess the effect of long duration and multiple infusions on the image signal‐to‐noise ratio (SNR) and contrast‐to‐noise ratio (CNR). Materials and Methods Dynamic coronary magnetic resonance (MR) imaging (130 msec/image) and contrast agent first pass myocardial perfusion studies were performed with intracoronary infusions of low‐dose Gd‐based MR contrast agent on dogs ( N = 4) using a fast multislice gradient recalled echo (GRE) sequence. Results Contrast‐enhanced coronary arteries were clearly imaged during infusion periods as long as 2.3 minutes. The SNR and CNR of the contrast‐enhanced coronary arteries remained essentially unchanged over multiple consecutive angiographic sessions. In addition, we demonstrated that first pass studies performed with intracoronary injection of MR contrast agent can be used as a means of assessing regional myocardial perfusion. Conclusion These studies demonstrated that, using intracoronary infusion of Gd, coronary magnetic resonance angiography (MRA) can be performed with high temporal resolution, and multiple low‐dose slow infusions of Gd‐based MR contrast agent can be performed without compromise of the vessel SNR and CNR. J. Magn. Reson. Imaging 2002;16:311–319. © 2002 Wiley‐Liss, Inc." @default.
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- W2019959217 date "2002-08-20" @default.
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- W2019959217 title "Dynamic coronary MR angiography and first‐pass perfusion with intracoronary administration of contrast agent" @default.
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- W2019959217 doi "https://doi.org/10.1002/jmri.10161" @default.
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