Sestamibi Scan

In the realm of medical imaging, Sestamibi scans have emerged as indispensable tools for diagnosing and assessing various health conditions. This article provides an in-depth look at the versatility of Sestamibi scans, showcasing their vital role in both cardiac and parathyroid imaging.

Sestamibi Scans for the Heart

What Are Cardiac Sestamibi Scans?

Cardiac Sestamibi scans, often referred to as technetium sestamibi scans or MIBI scans, are non-invasive nuclear medicine procedures used to evaluate the heart’s structure and function. These scans are primarily focused on assessing blood flow to the heart muscle, making them invaluable for detecting cardiac issues.

How Do Cardiac Sestamibi Scans Work?

  1. Radioactive Tracer Injection: A small amount of a radioactive tracer called technetium sestamibi is injected into a vein. This tracer highlights areas of the heart with normal blood flow.
  2. Imaging Process: The radioactive tracer travels through the bloodstream and accumulates in healthy regions of the heart.
  3. Image Capture: Specialized gamma cameras capture images of the heart, utilizing the tracer’s radiation to create detailed pictures of the heart’s condition.

Significance in Cardiac Health

Cardiac Sestamibi scans are instrumental in several aspects of heart health:

  • Cardiac Evaluation: Detecting blood flow issues, blockages, or coronary artery disease.
  • Diagnosis of Heart Abnormalities: Identifying conditions such as ischemia and cardiomyopathy.
  • Treatment Planning: Assisting surgeons and cardiologists in planning interventions.
  • Treatment Progress Monitoring: Tracking the effectiveness of cardiac treatments over time.

Sestamibi Scans for the Parathyroid Glands

What Are Parathyroid Sestamibi Scans?

Parathyroid Sestamibi scans, also known as Sestamibi parathyroid scans, are nuclear medicine procedures designed to evaluate the parathyroid glands. These small glands, located in the neck, play a critical role in regulating calcium levels in the body.

How Do Parathyroid Sestamibi Scans Work?

  1. Radioactive Tracer Injection: Similar to cardiac scans, a radioactive tracer, technetium sestamibi, is injected into a vein. Overactive parathyroid glands absorb the tracer, making them stand out.
  2. Imaging Process: The tracer is taken up by the overactive parathyroid gland.
  3. Image Capture: Specially equipped gamma cameras capture detailed images of the neck area, revealing the location and activity of the parathyroid glands.

Significance in Parathyroid Health

Parathyroid Sestamibi scans provide unique advantages for individuals with parathyroid concerns:

  • Identifying Abnormal Parathyroid Glands: Essential for diagnosing conditions like hyperparathyroidism.
  • Guiding Surgical Intervention: Accurately locating problematic parathyroid glands for surgical removal.
  • Reducing Surgery Complications: Minimizing the risk of complications by ensuring precise and targeted surgical procedures.
  • Monitoring Post-Surgery: Assessing the success of surgical intervention and confirming the removal of overactive glands.


Sestamibi scans not only aid in cardiac evaluation but also offer valuable assistance in parathyroid gland-related diagnostics and treatments. If you suspect cardiac or parathyroid issues, consult with a healthcare provider to determine if a Sestamibi scan is the right diagnostic tool for your specific situation.

Disclaimer: The content of this website is provided for general informational purposes only and is not intended as, nor should it be considered a substitute for, professional medical advice. Do not use the information on this website for diagnosing or treating any medical or health condition. If you have or suspect you have a medical problem, promptly contact your professional healthcare provider.

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