Structural Comparison between the Right and Left Atrial Appendages Using Multidetector Computed Tomography

Figure 3

Pectinate muscles (PMs) in right atrial appendage (RAA) and left atrial appendage (LAA). A comparison whether there is intercommunication between PMs. (a)-1,2 PMs in RAA (traffic); (b) PMs in LAA (no traffic). TS: tenia sagittalis.