Figure 5
The fascicular arrangement of the left bundle branch resolved by micro-CT. This figure demonstrates high resolution (73 × 73 × 73 µm3) micro-CT data from a whole human heart. Panels a and b show short axis micro-CT sections of the ribbon-like anterior, septal and posterior fascicles in the planes indicated in the 3D segmentation (d). A comparison between the visual anatomy in a macro photograph and the segmented atrioventricular conduction axis and left sided bundle branches of the same heart is shown in panels c and d. AVCA- atrioventricular conduction axis, IVS- interventricular septum, LV- left ventricular cavity, LAF- left anterior fascicle, LSF- left septal fascicle, LPF, left posterior fascicle, MS- membranous septum, PF- Purkinje fibre.
