- Why Diagnostic Digital Subtraction Angiography (DSA) is Important
Digital Subtraction Angiography stands out as one of the most accurate diagnostic tools for evaluating vascular diseases. Unlike standard X-rays or CT scans, DSA removes background structures, providing a clear, detailed view of blood flow. This level of accuracy helps physicians identify critical conditions at an early stage, preventing serious complications like stroke, ischemia, and aneurysm rupture.
DSA is particularly important for diagnosing:
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Cerebral vascular diseases (stroke, aneurysm, AVM)
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Carotid artery stenosis
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Peripheral artery disease (PAD)
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Coronary artery evaluation
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Tumor vascularization and pre-surgical planning
By enabling early detection, DSA contributes to timely medical or surgical interventions, improving patient outcomes and saving lives.
- Benefits of Diagnostic Digital Subtraction Angiography (DSA)
DSA offers several important benefits that make it a preferred choice for vascular imaging at Diagnopein.
- High Precision Imaging: Produces accurate, detailed images of even small vessels.
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Early Detection: Detects vascular issues long before symptoms become serious.
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Minimal Invasiveness: Performed using a fine catheter with minimal recovery time.
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Safe and Controlled: Uses a low dose of contrast medium under monitored conditions.
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Guidance for Treatment: Assists doctors in planning surgical or interventional procedures effectively.
This precision-based diagnostic test is ideal for patients with suspected vascular blockages, neurological symptoms, or cardiac concerns, ensuring timely and appropriate management.
- How Diagnostic Digital Subtraction Angiography (DSA) is Done
The DSA test is performed in a specialized radiology room under sterile conditions. Here’s what the procedure involves:
- Patient Preparation: You may be asked to fast for a few hours before the test. The medical team will review allergies and kidney function to ensure safe contrast use.
- Catheter Insertion: A small, thin catheter is inserted into an artery (usually in the groin or wrist) and guided toward the target area using fluoroscopic guidance.
- Contrast Injection: A contrast dye is gently injected, allowing real-time visualization of the blood vessels.
- Digital Imaging: The system captures images before and after contrast injection, subtracting background tissues to display clear vessel images.
- Post-procedure Monitoring: After the test, you’ll be observed for a short time to ensure recovery before discharge.
The entire DSA process typically takes 30 to 60 minutes and is performed by trained radiologists and technicians at Diagnopein, ensuring accurate results and patient comfort.