Cardiovascular Business -- Patients with a transient ischemic attack (TIA) or minor stroke with suspected carotid artery stenosis (CAS) should undergo duplex ultrasound and then CT angiography (CTA) after positive results as the most effective and cost-effective imaging protocol, according to a study published in this month's Radiology. Immediate CTA and surgery for 50 to 99 percent stenosis is indicated for patients with a high-risk profile, a high CAS probability or those who can proceed to surgery without delay, added the authors.
