Meeting Banner
Abstract #1896

Coronary Vessel Wall Thickness: Validation of MR Coronary Vessel Wall Imaging with Intravascular Ultrasonography.

Suzanne C. Gerretsen1, M. Eline Kooi1, Rene M. Botnar2, Johannes Waltenberger3, Rob J. van der Geest4, J. Dijkstra4, J. H. Reiber4, Tim Leiner1

1Radiology, Maastricht University Medical Center, Maastricht, Netherlands; 2Dept. of Experimental MRI, King's College London, London, UK; 3Cardiology, Maastricht University Medical Center, Maastricht, Netherlands; 4LKEB, Radiology, Leiden University Medical Center, Leiden, Netherlands

In this study, MR of the coronary vessel wall (MR-CVW) was compared to the current in-vivo standard of reference for coronary vessel wall imaging: intravascular ultrasound (IVUS). Fourteen patients with chest pain underwent both MR-CVW and IVUS. On both IVUS and MR-CVW, areas of focal wall thickening in the RCA were identified and wall thickness was measured. The current study confirmed the ability of MR-CVW to detect areas of positive remodeling as seen with IVUS. There is a good agreement between IVUS and MRI with regard to location and extent of wall thickening. However, MR-CVW overestimated wall thickness approximately 3-fold.