DMSA in Chennai
What is this study?
A DMSA scan, also known as dimercaptosuccinic acid scan, is a nuclear medicine imaging procedure used to assess the structure and function of the kidneys. It involves the injection of a radioactive tracer called technetium-99m (Tc-99m) dimercaptosuccinic acid (DMSA), which is taken up by the kidneys, allowing visualization of renal anatomy and function.
What is the need for the study?
The DMSA scan is performed to:
- Evaluate renal function and detect abnormalities such as kidney infections, scarring, or congenital renal anomalies
- Assess the severity and extent of renal damage in conditions such as pyelonephritis, vesicoureteral reflux (VUR), or renal trauma.
- Monitor the response to treatment in patients with kidney infections or other renal disorders.
This study helps healthcare providers make accurate diagnoses, guide treatment decisions, and monitor the progression of kidney diseases.
How do I prepare?
Preparation for a DMSA scan may include:
- Medication: Inform your healthcare provider about any medications you are taking, as certain medications may need to be temporarily stopped before the scan.
- Hydration: Drink plenty of fluids before the scan to ensure adequate hydration, which can help improve the distribution of the radioactive tracer.
- Empty Bladder: You may be instructed to empty your bladder before the scan to improve imaging quality.
Your healthcare provider will provide specific instructions on how to prepare for the DMSA scan based on your individual circumstances.
How is this scan performed?
During a DMSA scan:
- Radiotracer Injection: A small amount of technetium-99m (Tc-99m) DMSA is injected into a vein in your arm.
- Uptake Period: The radioactive tracer is allowed to accumulate in the kidneys over a period of time, typically several hours.
- Imaging: A gamma camera is used to acquire images of the kidneys from various angles. The camera detects the gamma rays emitted by the radioactive tracer, allowing visualization of renal anatomy and function.
- Functional Assessment: The images obtained from the scan are analyzed to assess kidney function, detect any abnormalities or lesions, and evaluate the extent of renal damage.
What should I do after the scan?
After the DMSA scan:
- Resume Normal Activities: You can usually resume your normal activities immediately after the scan.
- Follow-Up: Attend any scheduled follow-up appointments with your healthcare provider to review the results of the scan and discuss further management, if necessary.
Are there any risks in the study?
DMSA scans are generally considered safe and non-invasive. The amount of radiation exposure from the radioactive tracer used in the scan is minimal and poses little risk to most patients. However, as with any medical procedure involving radiation, there is a small risk of allergic reactions or adverse effects.
Your healthcare provider will discuss the potential risks and benefits of the DMSA scan with you and address any concerns you may have before proceeding with the procedure.
It’s essential to follow all instructions provided by your healthcare provider and communicate any symptoms or concerns you experience during or after the DMSA scan. Your healthcare team is here to support you throughout the process and ensure the best possible outcomes for your kidney health.
