In case of an aortic aneurysm, determine the superior limit, preferably excluding possible para- or juxtarenal aortic aneurysm. The renal arteries may be seen by Doppler, but the branching points are often difficult to see.
[[File:Ultrasonography of abdominal aortic aneurysm with mural thrombus.jpg|thumb|200px|Mural thrombus]]
Also check for mural thrombus, since it is associated with earlier rupture.<ref name="HallerCrawford2018">{{cite journal|last1=Haller|first1=Stephen J.|last2=Crawford|first2=Jeffrey D.|last3=Courchaine|first3=Katherine M.|last4=Bohannan|first4=Colin J.|last5=Landry|first5=Gregory J.|last6=Moneta|first6=Gregory L.|last7=Azarbal|first7=Amir F.|last8=Rugonyi|first8=Sandra|title=Intraluminal thrombus is associated with early rupture of abdominal aortic aneurysm|journal=Journal of Vascular Surgery|volume=67|issue=4|year=2018|pages=1051–1058.e1|issn=07415214|doi=10.1016/j.jvs.2017.08.069}}</ref>