Figure 6. Left ventricular lead visualization with multislice CT. With the use of 3-dimensional volume-rendered reconstructions, the exact location of the left ventricular [LV] lead can be assessed. This may be helpful when repositioning of the LV lead is necessary. (A) This image shows the LV lead positioned in the posterior vein of the left ventricle [PVLV]. No other suitable branches on the posterolateral wall of the LV are present. (CS = coronary sinus; GCV = great cardiac vein.) (B) After adjustment of the window level, the course and location of the LV lead (arrows) can be well visualized.