Midesophageal aortic valve long-axis view showing a significant amount of gas confined in the sinus of Valsalva at the right coronary cusp. In contrast to the sinus of Valsalva at the noncoronary cusp, the sinus of Valsalva at the right coronary cusp shows obliteration of the natural curvature by the highly echogenic mass of gas; RCC: right coronary cusp, NCC: noncoronary cusp.