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Digital Subtraction Angiography (DSA)

  • What is Digital Subtraction Angiography (DSA)?

    Digital subtraction angiography (DSA) is an examination that provides images of the lumen (inner surface) of blood vessels (arteries and veins) and heart chambers. These images are obtained using complex computerised x-ray machines. A special contrast ‘dye’ (high density clear liquid) is usually injected to make the blood supply to the legs, heart or other organs visible on the image.

  • This examination is commonly used to diagnose a variety of blood vessel diseases. You may need to undergo DSA to diagnose obstructive vascular diseases that are caused by blockages or narrowing of the lumen of arteries and veins. Your doctor may also request a DSA to diagnose a brain aneurysm, bleeding vessels, arteriovenous malformations (abnormal connections between arteries and veins) and to assess the vascularity (blood supply) of cancerous tumours. Angiography also provides a visual guide for interventional procedures needed to unblock or reopen blocked arteries. These procedures include angioplasty, arterial stenting, nephrostomy (opening created between kidney and skin) and biliary (bile duct) procedures.

  • At Parkway East Hospital you can look forward to receiving treatment in a warm and comforting environment. Our friendly staff and specialists are here to see you through each step of your journey towards recovery.

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