CT angiography of the lower extremities

Area of Science:

• Vascular Imaging
• Radiology
• Medical Diagnostics

Background:

• Advancements in multidetector computed tomographic systems have significantly enhanced CT angiography (CTA) for lower extremity assessment.
• CTA has become a primary noninvasive diagnostic tool, often replacing conventional catheter arteriography.

Purpose of the Study:

• To highlight the expanded applications and diagnostic capabilities of lower extremity CT angiography.
• To underscore the importance of CTA in evaluating diverse vascular pathologies and guiding interventions.

Main Methods:

• Utilizes 16 and 64 multidetector computed tomographic systems with advanced design.
• Employs specific protocols for acquiring, displaying, and interpreting high-quality CTA data.
• Application in diverse clinical scenarios including atherosclerotic disease, embolism, aneurysms, and arteritides.

Main Results:

• CTA precisely evaluates atherosclerotic peripheral arterial occlusive disease in symptomatic patients.
• Accurate diagnosis of atheroembolism, thromboembolism, aneurysmal disease, and arteritides (e.g., Buerger, Takayasu).
• Effective for arterial vascular mapping in reconstructive surgery and trauma evaluation.

Conclusions:

• CT angiography is a robust, noninvasive technique for comprehensive lower extremity vascular assessment.
• Expertise in CTA acquisition and interpretation is crucial for successful clinical application across various pathologies.
• CTA plays a vital role in pre- and post-operative evaluations and in clarifying ambiguous noninvasive test findings.