Gabriele Bonanno1, 2, David Brotman1, 2, Matthias Stuber1, 2
1Department of Radiology, University Hospital (CHUV) and University of Lausanne (UNIL),, Lausanne, Vaud, Switzerland; 2Center for Biomedical Imaging (CIBM), Lausanne, Vaud, Switzerland
A novel extension of phase-sensitive dual inversion recovery (PS-DIR) is proposed, implemented and tested for carotid vessel wall imaging. By probing the statistical distribution of the phase image carotid lumens are automatically segmented and their residual signal suppressed. The proposed PS-DIR technique was tested in healthy adult subjects and provided effective blood-suppression over a broad range of inversion times enhancing lumen-to-vessel wall contrast and vessel wall sharpness in the carotid arteries. Preliminary results of a multi-slice implementation showed to improve volumetric coverage with a 3-fold acceleration in scanning time.