Abstract
Introduction MR angiography (MRA) of left atrium (LA) is performed to provide an anatomical map of the LA for use during RF ablation procedures. High-resolution Late Gadolinium enhancement (LGE) imaging of LA is used to assess the left atrial wall [1,2] in patients undergoing RF ablation [3] typically with full (0.1 mmol/kg) doses of contrast (Gd-BOPTA). It is of interest to determine if smaller doses (0.05 mmol/kg) give comparable image quality, especially to image patients with abnormal kidney function.
Highlights
MR angiography (MRA) of left atrium (LA) is performed to provide an anatomical map of the LA for use during RF ablation procedures
MRA images of the 12 patients were analyzed by estimating a Contrast Enhancement Ratio (CER - ratio of signal in LA measured at first pass to that of pre-contrast image)
For Late Gadolinium enhancement (LGE) images, the 3 and 6-months post ablation images were analyzed with measurements of contrast to noise ratios (CNR)
Summary
MR angiography (MRA) of left atrium (LA) is performed to provide an anatomical map of the LA for use during RF ablation procedures. High-resolution Late Gadolinium enhancement (LGE) imaging of LA is used to assess the left atrial wall [1,2] in patients undergoing RF ablation [3] typically with full (0.1 mmol/kg) doses of contrast (Gd-BOPTA). It is of interest to determine if smaller doses (0.05 mmol/kg) give comparable image quality, especially to image patients with abnormal kidney function
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
