Myocardial Perfusion Scan - Rest And Exercise Hyderabad | Focus Diagnostics

About Myocardial Perfusion Scan - Rest and Exercise

A myocardial perfusion scan is a nuclear medicine imaging examination used to evaluate blood flow to the heart muscle. The rest and exercise study compares images acquired when the patient is resting with images obtained after exercise stress, helping doctors assess the distribution of blood flow through the myocardium.

The examination typically uses a prescribed radioactive tracer and a gamma camera to create images of the heart. The exercise component is performed under medical supervision according to the patient's condition and the prescribed protocol.

What Does a Myocardial Perfusion Scan Evaluate?

The scan evaluates the distribution of radiotracer uptake in the heart muscle during rest and stress. It may help identify areas with reduced tracer uptake that could be associated with reduced blood supply to the myocardium.

Comparing rest and stress images helps clinicians assess possible perfusion abnormalities. Findings are interpreted alongside symptoms, medical history, electrocardiography and other cardiac investigations.

Why Is a Rest and Exercise Myocardial Perfusion Scan Recommended?

A cardiologist may recommend myocardial perfusion imaging when evaluating selected patients with suspected or known coronary artery disease, chest discomfort or other symptoms that require assessment of myocardial blood flow.

The examination may also contribute to cardiac risk assessment or further evaluation of known heart disease when clinically appropriate. The decision to perform the test depends on the patient's symptoms, medical history and clinical assessment.

How Is the Myocardial Perfusion Scan Performed?

A prescribed radiotracer is administered, and gamma camera images are acquired according to the imaging protocol. The rest portion evaluates tracer distribution in the heart under resting conditions.

For the exercise portion, the patient performs supervised physical activity, commonly using a treadmill or another approved exercise method. The radiotracer is administered at the appropriate point in the stress protocol, followed by cardiac imaging.

Heart rate, blood pressure and the patient's clinical condition are monitored during exercise. If exercise is unsuitable, the cardiologist may consider an alternative stress method when clinically appropriate.

Preparation for Myocardial Perfusion Scan

Preparation is important because food, beverages and certain medicines can affect the examination or stress response. Follow the specific instructions provided by the nuclear medicine team and referring cardiologist.

• Ask the team whether fasting is required and how long it should continue.
• Avoid caffeine-containing products if instructed, as they may affect some cardiac stress protocols.
• Inform the team about all medications, supplements and relevant medical conditions.
• Wear comfortable clothing and suitable footwear if exercise testing is planned.
• Bring previous cardiac reports, ECGs and relevant investigation results.
• Inform the team about pregnancy or possible pregnancy and breastfeeding, where applicable.

Do not stop heart medicines or change medication doses unless specifically instructed by your treating doctor.

Benefits of Myocardial Perfusion Imaging

Myocardial perfusion imaging provides information about the distribution of blood flow to the heart muscle during rest and stress. Comparing the images may help doctors evaluate suspected perfusion abnormalities and support further cardiac assessment.

The scan is interpreted as part of the overall clinical picture. Additional tests may be required depending on the patient's symptoms and findings.

Understanding the Myocardial Perfusion Scan Report

The report may describe tracer uptake in different regions of the heart and compare the rest and stress findings. Areas of reduced uptake may require correlation with the imaging pattern, cardiac history and other investigations.

A qualified nuclear medicine physician interprets the images. The treating cardiologist explains the findings and their significance for further evaluation or management.

Myocardial Perfusion Scan in Hyderabad

Focus Diagnostics provides diagnostic imaging services in Hyderabad. Patients advised to undergo a Myocardial Perfusion Scan - Rest and Exercise should contact the centre to confirm the examination protocol, availability, preparation instructions and appointment details.

Consult your cardiologist or nuclear medicine team to determine whether this examination is suitable for your clinical condition.

Frequently Asked Questions

What is a Myocardial Perfusion Scan - Rest and Exercise?

It is a nuclear medicine cardiac imaging examination that compares blood flow patterns in the heart muscle during rest and exercise stress.

Why is a myocardial perfusion scan performed?

It may be recommended to assess myocardial blood flow and investigate possible perfusion abnormalities in selected patients with suspected or known coronary artery disease.

Does a myocardial perfusion scan use a gamma camera?

Yes. The examination typically uses a gamma camera to detect radiation from the administered radiotracer and produce images of the heart muscle.

Does the scan involve radiation?

Yes. The examination uses a radioactive tracer and involves exposure to ionising radiation. The nuclear medicine team selects an appropriate protocol based on the clinical indication.

Can I eat or drink before the scan?

Preparation requirements depend on the prescribed protocol. Follow the centre's instructions regarding fasting, caffeine, fluids and medication before the examination.

How long does a rest and exercise myocardial perfusion scan take?

The examination may take several hours because rest and stress imaging can involve separate stages and waiting periods. The exact duration depends on the imaging protocol.

What if I cannot exercise on a treadmill?

If exercise is unsuitable, the treating cardiologist may consider pharmacological stress imaging when clinically appropriate. Inform the team about mobility limitations and other health concerns before the appointment.

Where can I get a myocardial perfusion scan in Hyderabad?

Contact Focus Diagnostics in Hyderabad to confirm availability of the rest and exercise myocardial perfusion scan and obtain the required preparation instructions.