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

Figure 2

Quantification of the pectinate muscles (PMs) portion of the atrial appendages (AA) by three-dimensional morphological operation. (a) Determination of the PMs portion of the AA by computer analysis (short axis image). (b and c) The PMs were separated from the main body of AA (long axis image). (b) Main body, (c) PMs.