Figure 6.

Colour-coded bulls-eye projections of mechanical activation times (top row; A to D) and of timing of peak shortening (bottom row; A₁-D₁), with the vector magnitude and direction plotted in the centre (small blue arrows). The thick black line on the left of each bulls-eye defines the attachment of the inferior right ventricular wall between the inferior and the septal wall (wall segmentation: see figure 1). For clarity, all plots have an equal scale: 0 ms to 180 ms for mechanical activation times (top row) and 100 to 550 ms for peak times (bottom row). Example A and A₁: normal volunteer. Examples B, B₁ and C, C₁: patient with an inferoseptal and with an anterolateral bypass, respectively (* = invasively determined bypass localization). D: patient with LBBB. Note the large onset delay vector (D) and even larger peak shortening vector (D₁) pointing from the septum to the lateral wall.