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Transthoracic Echocardiographic Visualization of Calcification of the Sinotubular Ridge of the Ascending Aorta

Ivan A. D'Cruz1, Erick Calderon, Regenia Clark

  • 1Cardiology Section, VA Medical Center, 1030 Jefferson Avenue, Memphis, TN 38104.

Insights

Echocardiography reveals calcification of the sinotubular ridge, a finding previously undocumented by imaging. This distinct calcific deposit in the ascending aorta requires differentiation from atheromatous plaques.

Area of Science:

  • Cardiovascular Imaging
  • Cardiac Anatomy
  • Aortic Pathology

Background:

  • Calcification of the sinotubular ridge (STR) has been observed during autopsies.
  • No prior echocardiographic descriptions of STR calcification exist.
  • Understanding imaging characteristics is crucial for accurate diagnosis.

Purpose of the Study:

  • To describe the two-dimensional echocardiographic features of sinotubular ridge calcification.
  • To differentiate STR calcification from other aortic pathologies.

Main Methods:

  • Two-dimensional echocardiography was performed on 33 male patients (mean age 69 years).
  • Echocardiographic images were analyzed to identify and characterize STR calcification.
  • Associated calcifications in cardiac structures were also noted.

Main Results:

  • Sinotubular ridge calcification appeared as a dense echo at the junction of the aortic sinus and tubular ascending aorta.
  • Frequent co-occurrence of calcification in aortic valve cusps, mitral annulus, and papillary muscles was observed.
  • STR calcification is a distinct entity separate from atheromatous aortic plaques.

Conclusions:

  • Two-dimensional echocardiography can visualize sinotubular ridge calcification.
  • This finding is associated with other cardiac calcifications.
  • Distinguishing STR calcification from atheromatous plaques is essential.

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