In vivo quantification of carotid artery wall dimensions: 3.0-Tesla MRI versus B-mode ultrasound imaging.

In vivo quantification of carotid artery wall dimensions: 3.0 Tesla MRI versus B-mode ultrasound imaging. Duivenvoorden MRI and Ultrasound of Carotid Arteries

Comparison of in vivo carotid 3.0-T magnetic resonance to B-mode ultrasound imaging and histology in a porcine model.

OBJECTIVES We compared in vivo 3.0-T magnetic resonance (MR) images of the carotid artery wall in piglets to intima-media thickness measurements of similar carotid segments by B-mode ultrasound (US) and histology to define the corresponding anatomical tissue characteristics and accuracy of carotid MR images. BACKGROUND Carotid MR is increasingly used for the assessment of cardiovascular risk ...

Automated measurement of mean wall thickness in the common carotid artery by MRI: a comparison to intima-media thickness by B-mode ultrasound.

PURPOSE To determine whether the mean wall thickness (MWT) of the common carotid artery (CCA) measured by MRI is comparable to B-mode ultrasound (US) measurement of the intima-media thickness (IMT), an established marker of cardiovascular risk. MATERIALS AND METHODS As part of the two-year ORION trial, 43 patients with 16-79% stenosis by duplex US underwent high-resolution MRI and B-mode US e...

Manual versus Automated Carotid Artery Plaque Component Segmentation in High and Lower Quality 3.0 Tesla MRI Scans

PURPOSE To study the interscan reproducibility of manual versus automated segmentation of carotid artery plaque components, and the agreement between both methods, in high and lower quality MRI scans. METHODS 24 patients with 30-70% carotid artery stenosis were planned for 3T carotid MRI, followed by a rescan within 1 month. A multicontrast protocol (T1w,T2w, PDw and TOF sequences) was used. ...

Carotid geometry reconstruction: a comparison between MRI and ultrasound.

Image-based Computational Fluid Dynamics (CFD) has become a popular tool for the prediction of in vivo flow profiles and hemodynamic wall parameters. Currently, Magnetic Resonance Imaging (MRI) is most widely used for in vivo geometry acquisition. For superficial arteries such as the carotids and the femoral artery, three-dimensional (3-D) extravascular ultrasound (3-DUS) could be a cost-effect...