Sinotubular Ridge

The sinotubular ridge the portion of the ascending aorta just distal to the sinuses of Valsalva at the junction with the tubular segment of the ascending aorta.

Dilation of the aortic valve and effacement of the sinotubular ridge is characteristic of Marfan syndrome and other connective disorders, while one of the characteristic features of syphilitic aneurysm is sparing of the sinotubular junction

Aortic sinotubular ridge calcification may be associated with coronary artery disease.

References

• Kaufman JA and Lee MJ. Chapter 9. in Vascular and interventional radiology: The Requisites. Mosby 20004. pp 229-230.
• Stechert MM, London MJ. Aortic sinotubular ridge calcification: a common transesophageal echocardiography finding with uncertain implications. Anesth Analg. 2009 Jul;109(1):32-4.