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Abstract #3870

Effect on Image Quality of Carotid Three-Dimensional MR-Angiography: 1.0 M Gadobutrol Versus 0.5 M Gadoterate Meglumine at 3 Tesla Scanner

RAYMOND LEE1, Gladys Lo Goh1, Kai Ming Paul Au Yeung1, CHI WAI LIU1, KA MAN CHAN1, MEI LEE BETTY HUNG1

1Department of Diagnostic and Interventional Radiology, Hong Kong Sanatorium & Hospital, Hong Kong, China

Improvements in 3D CEMRA image quality are needed to achieve high diagnostic confidence. One approach to overcoming the limitations of CEMRA is the introduction of contrast agents with increased T1 relaxivity, which leads to higher vessel signal intensity. Previous studies showed contradictory results whether 1.0 M gadobutrol could improve image quality over 0.5 M gadolinium-based contrast, possibly because different anatomic regions were examined and study design. As far as the author knows, no previous study has compared the effect of 1.0M Gadobutrol versus 0.5 M Gadoterate Geglumine in carotid angiography by using a 3 Tesla MRI scanner. Current study may give an insight whether 1.0M Gadolinium-based contrast would improve the image quality in carotid MR angiography.