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©2013 UpToDate ® Print Email Abdominal aortic aneurysm on ultrasound Routine sonographic evaluation of an abdominal aortic aneurysm involves measuring the anteroposterior, longitudinal, and transverse dimensions of the aorta. In this instance, the diameters in the transverse dimensions (5.75 and 5.43 cm) are much greater than normal (typically around 2 cm or less). Thrombus or echodense calcifications (arrow) in or adjacent to the aortic wall may also be visualized. Courtesy of Emile R Mohler III, MD.
©2013 UpToDate ® Print Email Abdominal aortic aneurysm on ultrasound Routine sonographic evaluation of an abdominal aortic aneurysm involves measuring the anteroposterior, longitudinal, and transverse dimensions of the aorta. In this instance, the diameters in the transverse dimensions (5.75 and 5.43 cm) are much greater than normal (typically around 2 cm or less). Thrombus or echodense calcifications (arrow) in or adjacent to the aortic wall may also be visualized. Courtesy of Emile R Mohler III, MD. Abdominal aortic aneurysm long and short axis (A) The long axis view shows an aneurysm of the abdominal aorta (A Ao An) as the aorta crosses the diaphragm. Prominent plaques just beyond the aneurysm can be appreciated. (B) The short axis through the aneurysm (An) also shows the inferior vena cava (IVC).