What to expect from a digital subtraction angiography (DSA) procedure
DSA is a clever imaging technique doctors use to get super clear pictures of your blood vessels.
By injecting a special dye and digitally removing everything but the vessels, it helps spot issues that regular X-rays might miss—think of it as giving doctors X-ray vision for your arteries.
The process is usually done under local anesthesia
You're mildly sedated while doctors use a thin tube (catheter) to deliver dye into an artery, usually through your wrist or groin.
Real-time X-rays guide the process, making sure they get detailed images exactly where needed.
It's all closely monitored for safety.
Risks and benefits are carefully weighed
DSA is crucial for diagnosing things like aneurysms, blocked arteries, or blood clots—and even guides life-saving treatments like stroke interventions.
While risks like bleeding or allergic reactions exist, serious complications are rare (under 2.5%).
If you have clotting problems, or are taking anticoagulant medications, clinicians will assess risks and benefits and may modify the approach rather than automatically excluding you.
Afterward, some pressure on the entry spot helps you heal up quickly.