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Updated: Aug 29, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
Published on: September 8, 2023
CT of acute abdominal aortic disorders
Sanjeev Bhalla1, Christine O Menias, Jay P Heiken
1Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway, St. Louis, MO 63110, USA. bhallas@mir.wustl.edu
Insights
Helical CT is the primary imaging choice for acute abdominal aortic conditions due to its speed. Other imaging modalities like MR, angiography, and ultrasound play secondary or specific roles in diagnosis.
Area of Science:
- Radiology
- Vascular Imaging
- Emergency Medicine
Background:
- Acute abdominal aortic conditions include aneurysm rupture, dissection, PAU, occlusion, injury, and fistula.
- Prompt diagnosis is critical for effective management of these life-threatening conditions.
Purpose of the Study:
- To outline the role of various imaging modalities in diagnosing acute abdominal aortic conditions.
- To highlight helical CT as the primary imaging modality.
Main Methods:
- Review of imaging techniques for acute aortic pathologies.
- Discussion of helical CT, MR imaging, conventional angiography, and ultrasound.
Main Results:
- Helical CT is the imaging test of choice due to speed and ED proximity.
- MR imaging is valuable for aortic dissection and PAU, especially with contrast contraindications.
- Conventional angiography serves as a secondary tool for equivocal cross-sectional findings.
- Ultrasound is useful when CT is unavailable and MR is not feasible.
Conclusions:
- Helical CT is the preferred initial imaging modality for acute abdominal aortic conditions.
- MR imaging, angiography, and ultrasound have specific indications and complementary roles in diagnosis.
Abstract:
Aortic aneurysm rupture, aortic dissection, PAU, acute aortic occlusion, traumatic aortic injury, and aortic fistula represent acute abdominal aortic conditions. Because of its speed and proximity to the emergency department, helical CT is the imaging test of choice for these conditions. MR imaging also plays an important role in the imaging of aortic dissection and PAU, particularly when the patient is unable to receive intravenous contrast material. In this era of MDCT, conventional angiography is used as a secondary diagnostic tool to clarify equivocal findings on cross-sectional imaging. Ultrasound is helpful when CT is not readily available and the patient is unable or too unstable to undergo MR imaging.
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