Draft Aortic Imaging Protocols – September 2011

Uncomplicated abdominal aortic aneurysm (AAA) Sonography 92% (81–100%) 89% (85–100%) 9 0.1 ... a double contrast helical CT stages severity and predicts mortality earlier than the Ranson criteria. ... ranges from 12 to 16 as the size of the aneurysm increases from >3 cm to >4 cm.20 Thus, inability to palpate an enlarged aorta in a patient ... ................
................