Digital Subtraction Angiography (DSA)

1. What is Digital Subtraction Angiography (DSA)?
DSA is a specialized imaging technique that uses X-rays and contrast material to visualize blood vessels clearly by digitally removing surrounding bones and tissues from the images.

2. When is DSA recommended?
DSA may be recommended to investigate narrowed or blocked arteries, aneurysms, vascular malformations, abnormal blood vessels, bleeding, or other vascular conditions when detailed vessel imaging is required.

3. How is DSA performed?
A thin catheter is introduced into a blood vessel, commonly through the groin or wrist, and guided toward the blood vessels being examined. Contrast material is then injected while X-ray images are captured.

4. What areas of the body can be examined?
DSA can evaluate blood vessels in the brain and neck, heart and major vessels, kidneys, abdomen, pelvis, and limbs. The area examined depends on the suspected vascular condition.

5. Is DSA only a diagnostic procedure?
No. DSA can also serve as a platform for minimally invasive treatment. When appropriate, procedures such as angioplasty, stent placement, coil embolization, or treatment of abnormal vessels may be performed during the same session.

6. What preparation is required before DSA?
The medical team may review kidney function, blood-clotting tests, allergies, medications, and previous imaging. Fasting may be required, particularly when sedation or an interventional procedure is planned.

7. How long does DSA take?
A diagnostic DSA may take around 1–2 hours, although the duration varies depending on the vascular territory and complexity. Therapeutic procedures performed during DSA may take longer.

8. What are the possible risks?
Potential complications include bleeding or bruising at the catheter insertion site, infection, allergic reaction to contrast, blood-vessel injury, blood clots, and contrast-related kidney problems. Neurological or other serious complications are uncommon but can occur depending on the procedure.

9. Why consider India for DSA?
India has advanced interventional radiology and neurointerventional facilities, experienced specialists, modern angiography systems, and multidisciplinary teams capable of performing both diagnostic and therapeutic vascular procedures.

10. How can Medavelle help?
Medavelle can coordinate evaluation with an appropriate interventional radiologist or neurointervention specialist, arrange review of existing scans and reports, obtain a personalized cost estimate, and assist with hospital, travel, and treatment coordination in India.