Overview
CTA uses timed iodinated contrast bolus and high resolution acquisition to visualize arterial anatomy and occlusion.
Acquisition Technique
Use rapid bolus tracking thin collimation and arterial phase timing with multiplanar reconstructions and maximum intensity projections.
Clinical Indications
Used for acute stroke vessel occlusion detection aneurysm evaluation and pre interventional planning.
Dose and Contrast Considerations
Optimize contrast volume and use dose modulation and iterative reconstruction to minimize radiation while preserving vascular detail.