Total longitudinal displacement (tLoD) of the common carotid artery can be measured using the ultrasound-based velocity vector imaging (VVI) technique. This study aimed to investigate clinical correlates and the possible predictive value of tLoD for cardiovascular outcome.
Four hundred forty-one patients referred for myocardial perfusion scintigraphy examination for suspected coronary artery disease were recruited and underwent VVI-assisted tLoD measurement. Patients were followed up with regard to major adverse cardiovascular event (MACE) 1 year later. Low tLoD (= 0.055 mm) was associated with greater clinically determined myocardial ischemia (P0.055 mm) predicted 1-year event-free survival (P