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Left ventricular transmural profiles of v1 and v3 helix angles (HA) and transverse angles (TA) across four segments (lateral, anterior, septal and posterior) in three slices (basal, mid and apical) in slack (SL) and contractured (CO) hearts. Profiles are centred on the midline (transmural depth, d = 0 mm) and extend towards the epicardium (d < 0 mm) and endocardium (d > 0 mm).
