Coronary CTA to Investigate Predictive Value of Left Atrial Appendage for Cardiogenic Stroke in Patients with Nonvalvular Atrial Fibrillation

Figure 1

An example of cardiac CTA images illustrating the measurement of the left atrial appendage (LAA): (a) locating the LAA orifice in its long-axis view; (b, c) measurements of the maximum and minimum left atrial appendage orifice diameter (LAAODmax and LAAODmin, respectively) and the left atrial appendage orifice area (LAAOA) in the short-axis view; (d, e) by implementing curved planar reformation (CPR) along the LAA long-axis, a straightened LAA is obtained that can be used to measure the left atrial appendage depth (LAAD).

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