Figure 4From: Empiric versus imaging guided left ventricular lead placement in cardiac resynchronization therapy (ImagingCRT): study protocol for a randomized controlled trial Evaluation of cardiac venous anatomy. Baseline cardiac CT images from a prospective high pitch scan illustrating cardiac venous anatomy in a chronic heart failure patient in the mid-LV multiplanar reformatted short axis view (top) and in a three-dimensional volume-rendered reconstruction (bottom). AIV, anterior interventricular vein; CS, coronary sinus; CX, circumflex coronary artery; LAD, left anterior descending artery; LMA, left marginal artery (circumflex artery branch); LMV, left marginal vein; MCV, middle cardiac vein; PDA, posterior descending artery (right coronary artery branch); PV, posterior vein (PV and CX are not seen in the mid-LV short axis view); RV, right ventricle.Back to article page