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Navigating PET-CT Scan Imaging: Unraveling the Mysteries of Brain PET CT Scan and Full-Body PET CT Scans

In the world of medical scans, two cutting-edge technologies are making waves: the FDG Brain PET-CT Scan and the PET CT Scan. Let's break down these complex-sounding procedures to understand how they work, what they're used for, and why they matter.

Whole Body PET CT Scan: Unveiling the Secrets of Cancer and More

Moving on to the PET CT Scan, this imaging technique is a powerhouse when it comes to diagnosing cancer and other health conditions. It's like a superhero combo of positron emission tomography (PET) and computed tomography (CT). Picture it as a dynamic duo ? CT scans provide detailed organ images, while PET scans reveal what's happening at the cellular level.

Before the scan, you'll receive a small amount of a radioactive substance through injection usually Fluorodeoxyglucose (FDG) into the patient's bloodstream. This substance helps the PET scanner monitor how your body's cells are functioning. And here's the good news ? the radiation used in these scans is minimal and fades away quickly, making it generally safe. However, pregnant women are usually advised to steer clear of PET CT Scans due to potential risks to the baby.

What to Expect During the Whole Body PET CT Scan:

  1. You might be exposed to a bit of X-ray radiation.
  2. The scan could reveal bright spots, indicating potential health issues.
  3. The entire process is relatively quick, taking about 30 minutes to an hour.

FDG Brain PET-CT Scan: A Closer Look at Your Brain

If you're dealing with brain-related concerns like tumors or memory issues, the FDG Brain PET-CT Scan could provide the insights you need. It's a non-invasive imaging method that helps doctors evaluate brain health, pinpointing conditions such as Alzheimer's and Parkinson's disease.

Here's how it works: Before the scan, you'll need to fast for 5-6 hours, and then a doctor will prescribe a special radioactive tracer (18F-FDG) given through an IV. This tracer highlights specific areas in your brain during the scan, helping healthcare providers see how well your brain is using oxygen, managing blood flow, and handling metabolism.

It's crucial to note that while this scan is excellent for certain brain issues, it might not catch all brain metastases. In such cases, additional tests like an MRI might be recommended based on your symptoms.

Why is Brain PET CT Scan Performed?

  1. To diagnose Alzheimer?s disease
  2. To diagnose whether cancer has spread or not
  3. To diagnose Parkinson's disease
  4. To determine the stroke problem
  5. To diagnose seizure or epilepsy
  6. To evaluate the brain after trauma
  7. To detect brain cancer
  8. To monitor the effects of treatment

Heart disease ? PET scan reveals the area of decreased blood flow or glucose metabolism of the heart. It helps the doctors decide the line of treatment.

Breaking Down Costs and City-wise Insights

Now, let's talk about the nitty-gritty: costs. Full body PET CT Scan prices in India can range from Rs. 11,000 to Rs. 25,000. But guess what? You might snag a discount, sometimes up to 40%. Each city has its own price range, with Delhi, Mumbai, Hyderabad, Bangalore, Aurangabad, Nashik, and Chennai showcasing different costs. For best discounts, you can always check once on as it provides the best cost in India for PET CT SCAN.

Following cancers can be detected using PET scan:

  1. Lymphoma
  2. Thyroid
  3. Brain disorders
  4. Lung
  5. Esophageal
  6. Cervical disorders
  7. Melanoma
  8. Colon
  9. Breast
  10. Pancreatic

Why PET CT Scans Matter: Beyond Cancer Diagnosis

PET scans go beyond cancer detection. They're useful for various reasons:

  1. Identifying chemical activity in body parts.
  2. Measuring blood sugar metabolism.
  3. Detecting abnormalities in blood supply.
  4. Monitoring ongoing cancer treatment.

These scans stand out because they reveal cellular-level changes, offering a unique perspective that other scans might miss.

Accessing PET CT Scans in Delhi: Affordable Options for All

Recognizing the financial challenges, an initiative in Delhi is making full-body PET CT Scans more accessible. You can get the scan done for just Rs. 11,000, breaking down financial barriers and ensuring that high-quality healthcare doesn't come with a hefty price tag.

In a nutshell, FDG Brain PET-CT Scans and full-body PET CT Scans are like superheroes in the medical world, helping doctors uncover mysteries in your brain and body. As technology advances, initiatives like affordable scans in Delhi ensure that everyone can benefit from these medical marvels without breaking the bank.


PSMA stands for Prostate-specific Membrane Antigen. A PSMA PET CT Scan is a diagnostic imaging procedure that uses a radioactive tracer targeting the PSMA protein. It is primarily employed for the detection and evaluation of prostate cancer. The scan helps visualize the location and extent of prostate cancer cells in the body.


DOTA NOC Scan is a type of PET CT Scan that utilizes radiotracers DOTA and Noc. This scan is particularly sensitive and specific for diagnosing pancreatic tumors, especially gastropancreatic neuroendocrine tumors or pancreatic cancer. By detecting metastasis and assessing the characteristics of lesions, the DOTA NOC Scan aids in comprehensive diagnosis and treatment planning.

Preparations for a PET-CT Scan: Quick Overview

The levels of creatinine and uric acid are often assessed prior to undergoing a PET CT scan. These blood tests help evaluate kidney function. Here's why they are important:

  1. Creatinine and Uric Acid Blood Test:
    • Creatinine
    • Creatinine is a waste product produced by muscle metabolism and excreted by the kidneys. Elevated levels of creatinine in the blood can indicate impaired kidney function. Before a PET CT scan, checking creatinine levels is crucial because the contrast dye used in the scan is excreted through the kidneys. Impaired kidney function could affect the clearance of the contrast material, and in such cases, alternative imaging methods or adjustments in the procedure might be considered.

    • Uric Acid Blood Test:
    • While uric acid levels are not always routinely checked before a PET CT scan, some healthcare providers may include it in the pre-scan evaluation. Elevated uric acid levels can be associated with conditions like gout or kidney dysfunction.

  2. Medical History Alert:

    Inform your doctor about your medical history, especially pregnancy or breastfeeding.

  3. Caffeine Avoidance:

    Skip caffeine, especially if heart-related concerns are being addressed.

  4. Comfortable Attire:

    Wear loose, comfy clothes on the scan day.

  5. Fasting:

    Fast for 5-6 hours before the scan, following specific guidelines.

  6. Hydration:

    Drink water as allowed during fasting.

  7. Dietary Instructions:

    Follow any dietary guidelines, like limited carbs the day before.

  8. Diabetic Patients:

    Diabetics may get specific instructions; adhere to medication guidelines.

These simple steps ensure a smooth PET-CT scan process, contributing to accurate results. Always consult your healthcare provider for personalized instructions based on your health condition and scan purpose.

PET-CT Scan Procedure: A Brief Overview

  1. Radiotracer Injection:
    • A small amount of radioactive tracer, often FDG, is injected into a vein.
  2. Waiting Period:
    • Allow approximately an hour for the tracer to circulate in the body.
  3. Patient Positioning:
    • Lie on a table, which moves into the scanner.
  4. Radiotracer Injection:
    • A small amount of radioactive tracer, often FDG, is injected into a vein.
  5. Waiting Period:
    • Allow approximately an hour for the tracer to circulate in the body.
  6. Patient Positioning:
    • Lie on a table, which moves into the scanner.
  7. Scanning Process:
    • The combined PET and CT scanners capture detailed images of the body's metabolic activity and anatomy.
  8. Stillness is Key:
    • Stay still during the scan to prevent blurred images.
  9. Duration:
    • The entire procedure typically takes 30 minutes to 1 hour, depending on the area being examined.
  10. Report Preparation:
    • After the scan, healthcare providers analyze the images to generate a comprehensive report.

Remember, your healthcare team will guide you through the specifics based on your health condition and the purpose of the scan.

Side Effects of PET CT Scan:

  1. Localized Pain and Swelling:
    • At the injection site, some individuals may experience localized pain and swelling. This is a common and generally mild side effect.
  2. Allergic Reactions:
    • In rare cases, there might be an allergic reaction to the contrast dye used during the scan. This can include symptoms such as itching, rash, or more severe allergic responses.
  3. Claustrophobia:
    • People who are claustrophobic may feel nervous or uncomfortable inside the PET Scanner. The enclosed space might trigger anxiety in some individuals.
  4. Nausea and Vomiting:
    • Patients undergoing PET scans may experience nausea and vomiting. These symptoms can be associated with the contrast dye used for the CT part of the scan.
  5. Headache:
    • Some individuals might experience headaches as a result of the contrast dye or other factors related to the scan.
  6. Radiation Exposure:
    • While PET CT scans involve exposure to X-ray radiation, the amount is relatively small and is generally considered safe. However, pregnant women are often advised to avoid the scan due to potential risks to the baby.

It's important to note that these side effects are generally uncommon, and the benefits of obtaining crucial diagnostic information often outweigh the risks. Patients should communicate any concerns or pre-existing conditions to their healthcare providers before undergoing a PET CT Scan.

Difference Between PET-CT Scan and CT Scan:

  1. Purpose:
    • CT Scan: Primarily used for obtaining detailed anatomical images of tissues and organs.
    • PET-CT Scan: Combines anatomical and functional information, particularly sensitive to metabolic changes.
  2. Functional Information:
    • CT Scan: Emphasizes structural details but lacks sensitivity to functional or metabolic activity.
    • PET-CT Scan: Highly sensitive to cellular activity, providing insight into metabolic functions.
  3. Early Detection:
    • CT Scan: Effective in visualizing structures but may not detect physiological changes in the early stages.
    • PET-CT Scan: Particularly advantageous in identifying changes in cellular activity sooner than many other tests.
  4. Cancer Detection:
    • CT Scan: Useful for locating and assessing the size of tumors.
    • PET-CT Scan: Specifically employed to obtain detailed information about cancer, including its location, extent, and metabolic activity.
  5. Combination Strength:
    • CT Scan: Provides precise anatomical images.
    • PET-CT Scan: Merges anatomical and functional information, offering a comprehensive diagnostic tool.
  6. Applications:
    • CT Scan: Widely used for various diagnostic purposes, including trauma assessment and structural abnormalities.
    • PET-CT Scan: Commonly used in cancer-related assessments, treatment planning, and monitoring.
  7. Radiation Exposure:
    • CT Scan: Involves exposure to X-ray radiation.
    • PET-CT Scan: Involves a combination of X-ray radiation (CT component) and a radioactive tracer (PET component).
  8. Clinical Uses:
    • CT Scan: Valuable in identifying structural abnormalities.
    • PET-CT Scan : Particularly powerful in cancer diagnosis, treatment planning, and monitoring treatment response.

In summary, while CT Scans focus on detailed anatomy, PET-CT Scans excel in providing both anatomical and functional insights. The combination of these imaging modalities in a PET-CT Scan enhances diagnostic capabilities, especially in the context of cancer assessment and treatment.

Difference Between FDG Brain PET-CT Scan and Brain MRI Scan:

  1. Imaging Technique:
    • FDG Brain PET-CT Scan: Utilizes positron emission tomography with computed tomography and involves a radioactive tracer (18F-FDG).
    • Brain MRI Scan: Relies on magnetic resonance imaging technology without the use of ionizing radiation.
  2. Purpose:
    • FDG Brain PET-CT Scan: Primarily used to evaluate tumors, dementia, Alzheimer's, and Parkinson's disease by detecting metabolic activity.
    • Brain MRI Scan: Commonly employed for detailed imaging of brain structures, detecting abnormalities like tumors, lesions, and vascular issues.
  3. Detection Capability:
    • FDG Brain PET-CT Scan: Highlights areas with increased metabolic activity, aiding in the detection of functional abnormalities.
    • Brain MRI Scan: Provides detailed structural images, revealing anatomical features and abnormalities.
  4. Tracer Used:
    • FDG Brain PET-CT Scan: Involves the injection of 18F-FDG, a radioactive glucose analog.
    • Brain MRI Scan: Does not use radioactive tracers; images are generated based on the magnetic properties of tissues.
  5. Information Obtained:
    • FDG Brain PET-CT Scan: Emphasizes cellular metabolism, helping in early disease detection and differentiation of active and inactive lesions.
    • Brain MRI Scan: Emphasizes detailed anatomy, aiding in the visualization of tissue structures and abnormalities.
  6. Conditions Assessed:
    • FDG Brain PET-CT Scan: Particularly useful in assessing conditions with altered metabolic activity, such as tumors and neurodegenerative diseases.
    • Brain MRI Scan: Commonly used for a broad range of brain assessments, including tumor detection, stroke evaluation, and structural abnormalities.
  7. Invasiveness:
    • FDG Brain PET-CT Scan: Non-invasive; involves injection of a radioactive tracer.
    • Brain MRI Scan: Non-invasive; does not require injection of contrast agents in standard cases.
  8. Cost:
    • FDG Brain PET-CT Scan: May have a higher cost compared to a Brain MRI Scan.
    • Brain MRI Scan: Generally considered more cost-effective for routine brain imaging.

In conclusion, the choice between FDG Brain PET-CT Scan and Brain MRI Scan depends on the clinical context, with PET-CT being more focused on metabolic activity and MRI providing detailed structural information. The selection is often based on the specific diagnostic needs of the patient and the suspected underlying conditions.

PET Scan Names and Abbreviations:

  1. PET Scan: The general term for the imaging technique.
  2. PET-CT Scan: When PET is combined with CT for more detailed anatomical information.
  3. FDG PET Scan: Involves the use of Fluorodeoxyglucose (FDG) as a radioactive tracer.
  4. Whole Body PET Scan: Captures images of the entire body to assess various organs.
  5. PSMA PET CT Scan: Specifically used for prostate cancer detection, employing Prostate-Specific Membrane Antigen (PSMA) as a tracer.
  6. DOTA NOC Scan: Utilizes Dotatate (DOTA) and Noc (Nuclear orphan receptor) tracers, often for pancreatic tumors.
  7. Brain PET-CT Scan: Focuses on imaging the brain for conditions like tumors, dementia, Alzheimer's, and Parkinson's disease.
  8. PET-CT Angiography: Emphasizes the evaluation of blood vessels.
  9. Cardiac PET Scan: Specialized for assessing heart conditions.
  10. FDG Whole Body PET-CT Scan: Examines the entire body using FDG as a tracer.
  11. 18F-FDG PET Scan: Specifies the use of 18F-FDG as the radioactive tracer.
  12. PET-CT Oncology Scan: Applied in cancer-related assessments.

These names reflect the diverse applications and variations of PET scans tailored to different medical needs.

Frequently Asked Questions (FAQs) About PET CT Scans:

  1. What is a PET CT Scan and how does it work?
    • A PET CT Scan is a specialized medical imaging test that combines positron emission tomography (PET) and computed tomography (CT). It employs a small amount of a radioactive substance to detect and measure changes in cellular activity, providing detailed insights into the functioning of organs and tissues.
  2. Why is a PET CT Scan important in cancer diagnosis?
    • A PET CT Scan is crucial in cancer diagnosis as it can identify metabolic changes in cells, aiding in the detection of tumors, monitoring treatment response, and assessing the possibility of cancer recurrence. It plays a vital role in early and accurate cancer diagnosis.
  3. What is the cost of a PET CT Scan in different cities in India?
    • The cost of a PET CT Scan varies across cities in India. In Delhi, it ranges from Rs. 8900 to Rs. 25000, in Mumbai, it's Rs. 9999, in Hyderabad, it's Rs. 9900, and in Bangalore, it's Rs. 12992. The cost may differ based on the diagnostic center and location.
  4. How is a PET CT Scan different from other imaging techniques like MRI and CT scans?
    • Unlike traditional imaging techniques such as MRI and CT scans, a PET CT Scan provides information at the cellular level. It detects metabolic and functional changes, offering a comprehensive view of tissue activity, which is particularly beneficial in early disease detection.
  5. What preparations are required before undergoing a PET CT Scan?
    • Before a PET CT Scan, fasting for 5-6 hours is necessary. A doctor's prescription is required, and a radioactive tracer is administered through an IV. Inform your doctor about medications, and wear loose, comfortable clothes for the procedure.
  6. Are there any side effects associated with PET CT Scans?
    • PET CT Scans are generally safe, with minimal side effects. Some individuals may experience localized pain or swelling at the injection site, and in rare cases, there might be an allergic reaction to the contrast dye.
  7. Can pregnant women undergo a PET CT Scan?
    • Pregnant women are generally advised against undergoing a PET CT Scan due to potential risks to the developing fetus from the small amount of radiation involved.
  8. What is the purpose of a PSMA PET CT Scan?
    • A PSMA PET CT Scan is specifically designed for detecting prostate cancer. It provides highly detailed imaging, aiding in accurate diagnosis and staging.
  9. What is a DOTA NOC Scan, and what does it detect?
    • A DOTA NOC Scan is a PET CT Scan that utilizes specific tracers for diagnosing gastropancreatic neuroendocrine tumors or pancreatic cancer. It is particularly helpful in detecting metastasis.
  10. How long does it take to get the results of a PET CT Scan?
    • The results of a PET CT Scan are typically ready within 1-3 days after the test, providing prompt information for diagnosis and treatment decisions.
  11. What are the indications for a PET CT Scan?
    • PET CT Scans are recommended for various indications, including cancer detection, heart diseases, brain disorders, depression, Alzheimer's, epilepsy, and monitoring treatment plans.
  12. In which health conditions is a PET CT Scan recommended?
    • PET CT Scans are beneficial in diagnosing and monitoring cancer, heart diseases, brain disorders, and other conditions where detailed functional information is crucial.
  13. Can PET CT Scans detect brain disorders such as Alzheimer's and Parkinson's disease?
    • Yes, PET CT Scans can assist in detecting brain disorders like Alzheimer's and Parkinson's disease by revealing metabolic changes in the brain.
  14. Is fasting required before a PET CT Scan?
    • Yes, fasting for 5-6 hours is required before a PET CT Scan to ensure accurate imaging and interpretation of metabolic activity.
  15. What information does a PET CT Scan provide that other imaging techniques may not?
    • A PET CT Scan offers detailed insights into cellular function and anatomy, providing information that may not be obtained through other imaging techniques.
  16. What are the benefits of a PET CT Scan in cancer treatment monitoring?
    • PET CT Scans are valuable in monitoring cancer treatment effectiveness, helping doctors assess the response to therapies and detect any signs of cancer recurrence.
  17. Can PET CT Scans be booked online, and how?
    • Yes, PET CT Scans can be conveniently booked online through platforms like This allows users to choose from diagnostic centers, avail discounts, and book appointments effortlessly.
  18. Why might a doctor recommend a PSMA PET CT Scan for prostate cancer detection?
    • A doctor may recommend a PSMA PET CT Scan for prostate cancer detection due to its ability to provide highly detailed images, aiding in accurate diagnosis and staging.
  19. What are the potential risks of radiation exposure during a PET CT Scan?
    • PET CT Scans involve minimal radiation exposure, and the risks are considered low. However, pregnant women are generally advised against it due to potential risks to the developing fetus.
  20. Are there any alternative tests or scans that can be done instead of a PET CT Scan in specific cases?
    • Depending on the specific case, alternative tests like MRI or CT scans may be considered. However, the choice depends on the diagnostic requirements and the information needed.
  21. How many PET scans can you have in your life?
    • The frequency of PET scans is determined by medical necessity, and individuals should consult their doctors for personalized advice based on their health conditions.
  22. Is providing PET CT SCAN Test From well-Equipped with Advance Machinery Labs?
    • Yes, offers PET CT Scan tests from well-equipped and advanced machinery labs, ensuring accurate and reliable results.
  23. How can I avail discounts on PET CT Scan costs when booking online?
    • Users can avail discounts on PET CT Scan costs by booking through The platform often provides promotional offers and discounts for online bookings.
  24. What is the average discount percentage offered on PET CT Scan bookings through
    • The average discount percentage on PET CT Scan bookings through varies, and users can check the platform for specific details while making their bookings.
  25. Can I book a PET CT Scan online and choose a diagnostic center nearby?
    • Yes, facilitates online PET CT Scan bookings, offering the option to choose a nearby diagnostic center based on the user's preference.

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