4DCT-Derived Endocardial Left Ventricular Torsion Correlates With CMR Tagging–Derived Torsion in the Same Subjects

Left ventricular (LV) torsion is an important prognostic parameter ([1][1]). We introduce here a new algorithm for measuring endocardial LV torsion from standard four-dimensional computed tomography (4DCT) imaging validated with cardiac magnetic resonance (CMR) tagging. We analyzed 16 consecutive