Digital Subtraction Angiography (DSA) is a medical imaging procedure used to visualize blood vessels in great detail. However, many people still wonder: what exactly is DSA used for?
This procedure plays a crucial role in diagnosing and treating various serious medical conditions involving blood vessels, especially in the brain and heart. With the help of DSA, doctors can design more accurate and safer treatment strategies for patients.
DSA works by injecting a contrast agent into the blood vessels, then capturing a series of X-ray images to produce a clear visualization of the vessels without interference from surrounding tissues.
Below is a complete list of conditions where DSA is essential for evaluation or treatment.
DSA is extremely important in managing both ischemic and hemorrhagic strokes. In ischemic stroke, there is a blockage in the blood flow to the brain.
In hemorrhagic stroke, there is bleeding due to a ruptured blood vessel. DSA allows doctors to precisely identify the location and cause of the blood flow disturbance.
Beyond diagnosis, DSA is also used in endovascular procedures such as thrombectomy, where a blood clot is removed from a brain vessel.
In cases of hemorrhagic stroke, DSA helps guide the placement of tools like coils, balloons, or stents to seal off the ruptured vessel.
An aneurysm is an abnormal bulging or dilation of a blood vessel wall, which can rupture and cause life-threatening bleeding in the brain.
DSA is the gold standard for detecting aneurysms, including determining their size and location with high precision.
This information is crucial when planning procedures like coiling, where the aneurysm is sealed using metal coils to prevent rupture. Without DSA, detecting aneurysms accurately would be much more difficult and dangerous for patients.
Some brain tumors have a strong blood supply from specific vessels. In such cases, DSA is necessary to clearly visualize the feeder vessels supplying the tumor.
With this information, doctors can plan an embolization procedure, which involves blocking the blood supply to the tumor before surgery. This helps reduce the risk of heavy bleeding during tumor removal.
DSA is also useful for assessing arterial blockages in heart patients, especially those with atherosclerosis (plaque buildup). This procedure allows doctors to evaluate the severity of arterial narrowing in detail.
Based on the findings, doctors can plan further treatment such as angioplasty (balloon dilation of blood vessels) or stent placement to restore normal blood flow. In other words, DSA helps prevent serious heart complications.
AVM is a condition where arteries and veins connect abnormally, bypassing the capillaries. This can cause high pressure in brain vessels and increase the risk of bleeding.
DSA provides detailed imaging of the AVM's vascular structure. This helps doctors plan embolization to close off the abnormal vessels and prevent complications such as AVM rupture.
DSA is used to manage serious conditions such as:
Thanks to its ability to provide highly detailed vascular imaging, DSA is a leading method for diagnosing and treating blood vessel-related conditions.
If you or a loved one requires a thorough vascular evaluation, National Hospital Surabaya offers advanced DSA services with cutting-edge technology and a professional medical team. You can consult further to receive safe and appropriate care based on your condition.