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Abstract #3914

High quality 7T MRI of atherosclerotic plaque in the significantly stenosed carotid artery

Alexandra A.J. de Rotte 1 , Wouter Koning 2 , Martine T.B. Truijman 3,4 , Anne G. den Hartog 5 , Sandra M. Bovens 6 , Aryan Vink 7 , Shahrzad Sepehrkhouy 7 , Jaco J.M. Zwanenburg 8 , Dennis W.J. Klomp 8 , Gerard Pasterkamp 9 , Frans L. Moll 5 , Peter L. Luijten 8 , Jeroen Hendrikse 8 , and Gert Jan de Borst 5

1 Radiology, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 2 University Medical Center Utrecht, Utrecht, Netherlands, 3 Radiology and Clinical Neurophysiology, Maastricht University Medical Center, Limburg, Netherlands, 4 Cardiovascular Research Institute Maastricht, Limburg, Netherlands, 5 Vascular Surgery, University Medical Center Utrecht, Utrecht, Netherlands, 6 Bioengineering, Imperial College London, London, United Kingdom, 7 Pathology, University Medical Center Utrecht, Utrecht, Netherlands, 8 Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 9 Experimental Cardiology, University Medical Center Utrecht, Utrecht, Netherlands

This is the first study showing the feasibility of carotid plaque imaging at 7T in a series of patients with a symptomatic carotid artery stenosis of >70%. The available BB sequences at 7T seem accurate to demonstrate that an increasing hyperintensity of the MR signal in the carotid plaque on the PDW sequence is inversely proportional to the absence of calcification in the atherosclerotic plaque. Carotid plaque MRI at 7T enables to increase SNR significantly, compared to 3T, which results in accurate luminal and vessel wall determination, both in healthy volunteers and in a series of high-risk patients.

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