Technical Innovation Protocol for MR & US Plaque Imaging: Reproducibility.
Technical Innovation Protocol for MR & US Plaque Imaging: Reproducibility.
The aim of this study is to develop non-invasive MRI, and MRS approaches that will quantify
 the plaque composition and lipid content of plaques and will have the potential for repeated
 in vivo measurements. Simultaneously this study aims to develop US plaque imaging as a
 screening tool to select plaque phenotypes of interest for clinical trials (a large LRNC).
 For plaque composition imaging by MRI the researchers aim to increase scan resolution and
 decrease scan time. For quantifying plaque lipid content the researchers aim to develop an
 MRS protocol. Subsequently, the researchers intend to study the reproducibility of plaque
 composition and lipid content measurements by MRI, MRS and Ultrasound in subjects that have
 carotid artery plaques.
Inclusion Criteria:

 -  Patients, with 30 to 70% carotid artery stenosis on ultrasound duplex, who will not go
 for endarterectomy.

 Exclusion Criteria:

 -  Metal in the body, as a result of e.g. pacemaker or artificial cardiac valves;
 claustrophobia; surgery performed in the area of measurement (Carotid artery region);
 Cardiac arrhythmias.