PET Scan for 3D Image Body Scaning For Cancer Treatment

PET Scan for 3D Image Body Scaning For Cancer Treatment

A PET scan is a medical imaging technique that uses a small amount of radioactive material to visualize and assess metabolic activity in the body, aiding in the diagnosis and monitoring of diseases such as cancer and neurological disorders.


What is PET Scan

PET scan stands for Positron Emission Tomography.

  • It's a medical imaging technique.
  • Involves a small amount of radioactive material.
  • This material is called a radiotracer.
  • Radiotracer is injected or ingested by the patient.
  • Special detectors capture emissions from radiotracer.
  • Provides images showing tissue function and metabolism.


PET Scan

Here are the basic details for the PET Scan .

Also Known As Positron Emission Tomography (PET)
Type Nuclear Medicine Imaging
Purpose Evaluate organ function and detect diseases
Preparation Fasting, avoid strenuous activity
Fasting Usually required
Gender All genders
Age Group All age groups
Procedure Duration 1-2 hours
Reporting Time Typically within a few days
Cost 10,000 - 40,000* INR
Pregnancy Consideration Avoided during pregnancy
Risks and Safety Low radiation, minor risks of allergies
Accessibility Available in specialized centers

*Price range may vary as per location, facility, type, and procedure.


What are the Purpose or Reasons for PET Scan?

Here are common reasons for PET Scan.

  • Evaluate organ and tissue function
  • Detect and stage cancer and tumors
  • Monitor cancer treatment response
  • Assess neurological disorders and brain function
  • Investigate cardiac conditions and blood flow
  • Study metabolic processes in the body
  • Identify areas of inflammation or infection

PET Scan Meaning, Price, Result, Purpose,Procedure, Preparation, Results and Abnormal Results - Drlogy Scan


Types of PET Scan

Here are the types of PET Scan along with their primary use.

PET Scan Type Organ/System Primary Use
Whole-Body PET Scan Whole body Detect metabolic abnormalities
Brain PET Scan Brain Assess brain function
Cardiac PET Scan Heart Evaluate cardiac blood flow
FDG-PET/CT Scan Various Detect cancer and metastases
Gallium Scan Various Assess inflammation or tumors
Renal Scan Kidneys Evaluate kidney function
Hepatobiliary Scan Liver/Gallbladder Assess liver and bile ducts
Lung Ventilation/Perfusion Scan Lungs Assess lung function
Octreotide Scan Various Detect neuroendocrine tumors

These PET scan types provide valuable insights into specific organs and conditions.


Preparing for Your PET Scan: Tips and Information

Here is the basic preparation before, during, and after PET Scan for any patient.


Before the PET Scan:

  • Consultation: Schedule the PET scan and discuss your medical history, allergies, and any concerns with your healthcare provider.
  • Fasting: Follow any fasting instructions provided by your healthcare team. Typically, you'll need to fast for several hours before the scan, usually overnight.
  • Medications: Inform your healthcare provider about all medications you are taking, as they may affect the scan. You may need to adjust your medication schedule.
  • Allergies: If you have known allergies to any substances used in the scan, such as contrast agents, inform your healthcare provider in advance.


During the PET Scan:

  • Injection: You will receive a radioactive tracer (often through an IV) before the scan. This tracer helps create detailed images of the inside of your body.
  • Waiting Period: After receiving the tracer, there may be a waiting period for it to distribute within your body before the actual scan.
  • Positioning: You'll be positioned on the PET scanner table, and the scanner will move slowly over the area of interest.
  • Communication: You can communicate with the healthcare team if you have any questions or concerns during the procedure.


After the PET Scan:

  • Recovery: Typically, there is no special recovery needed, and you can resume your normal activities immediately.
  • Hydration: Drinking fluids can help eliminate the radioactive tracer from your body. Follow any hydration recommendations from your healthcare team.
  • Results: Your PET scan results will be reviewed by a specialist, and a report will be sent to your healthcare provider.
  • Follow-Up: Schedule a follow-up appointment with your healthcare provider to discuss the PET scan results and any further steps or treatments if needed.

Please note that the specific instructions and procedures can vary based on your medical condition and the type of PET scan you are undergoing. Always adhere to the guidance provided by your healthcare team for a successful and safe PET scan.


Who Performs a PET Scan?

Professional Role
Nuclear Medicine Technologist Administers radioactive tracers, operates PET scanner.
Radiologic Technologist Assists during the procedure.
Radiologist Interprets PET scan images, provides a diagnosis.


PET Scan Procedure

The procedure for PET Scan typically follows these steps:

  • Check-in and registration at the PET scan department.
  • You may be asked to fast for several hours before the scan (typically 4-6 hours).
  • A radioactive tracer, usually FDG (fluorodeoxyglucose), is injected intravenously or administered orally.
  • You'll wait for about 30-60 minutes to allow the tracer to distribute in your body.
  • You'll be asked to empty your bladder before the scan.
  • You'll lie down on an examination table in a quiet room.
  • The PET scanner, a large ring-shaped machine, will slowly move over your body.
  • The scanner detects signals emitted by the radioactive tracer.
  • You'll need to remain as still as possible during the scan, which can take 30-60 minutes.
  • You may be asked to hold your breath briefly for certain images.
  • The procedure is painless, but it's important to relax and avoid movement.
  • After the scan, you can resume normal activities and eating.
  • The images are interpreted by a radiologist or nuclear medicine physician.
  • You may receive the results during your visit or at a later time.


PET Scan Results

Here are some common elements you might find in a PET Scan report:

PET Scan Findings Interpretation
Area of Imaging (e.g., brain, chest, etc.) Normal or Abnormal
Standardized Uptake Values (SUV) Quantitative measurements of radiotracer uptake, if applicable
Metabolic Activity Assessment of increased or decreased metabolic activity
Radiotracer Distribution Information about the distribution pattern of the radiotracer
Impression Summary of key findings or diagnostic impressions
Recommendations Follow-up tests, treatments, or further evaluation, if necessary
Conclusion Final remarks or clinical recommendations

PET scans are often used to assess metabolic activity and detect abnormalities in various tissues and organs. The results are typically discussed with the healthcare provider, and any abnormal findings would prompt further evaluation and management based on the clinical context.


PET Scan Abnormal Result

Here are potential causes of abnormal PET scan results:

Abnormal PET Scan Finding Potential Causes
Increased Metabolic Activity Cancerous tumors, infection, inflammation, metabolic disorders
Decreased Metabolic Activity Areas of tissue damage, decreased blood flow, necrosis
Altered Radiotracer Distribution Abnormal tissue growth, lesions, infections
Asymmetry in Activity Benign tumors, structural abnormalities, positional differences
Unusual Focal Uptake Lesions, focal infections, granulomas
Impaired Clearance Kidney or liver dysfunction, metabolic disorders

Abnormal PET scan findings require further evaluation by a healthcare provider or specialist to determine the underlying cause and appropriate next steps for diagnosis and treatment. PET scans are valuable for assessing metabolic activity and identifying areas of concern in the body.


How Long Does a PET Scan Take?

The duration of a PET (Positron Emission Tomography) scan can vary based on the specific procedure being performed. Here's a general overview of the approximate time it takes for different types of PET scans:

PET Scan Procedure Duration
Whole-Body PET Scan 30 minutes to 1 hour
Brain PET Scan 30 minutes to 1 hour
Cardiac PET Scan 2-3 hours (including rest and stress phases)
FDG-PET/CT Scan (commonly used) 1-2 hours
FDG-PET/MRI Scan (less common) 1-2 hours
  • Please note that these are approximate times and can vary depending on factors such as the type of radiotracer used, the patient's specific condition, and the imaging equipment's capabilities.
  • Additionally, some PET scans may require additional preparation time, such as allowing the radiotracer to circulate in the body before imaging.
  • Always follow the instructions provided by your healthcare provider for your specific PET scan.


PET Scan Report

PET Scan Report Format Example Sample Template - Drlogy Lab Report

PET Scan Report Sample PDF


PET Scan Limitation

Here are some limitation associated with a PET Scan.

  • Radiation exposure
  • Allergic reactions to radiotracers
  • Pregnancy (avoided if possible)
  • Kidney or liver issues (may affect tracer elimination)
  • Claustrophobia or anxiety
  • Inability to remain still during the scan


PET Scan Risk Factors

Here are some risk factors associated with a PET Scan

  • Exposure to ionizing radiation due to radiotracer
  • Small radiation dose, but precautions for repeated scans
  • Allergic reactions to radiotracers
  • Minimal discomfort during injection
  • Potential for false-positive or false-negative results
  • Operator expertise crucial for accurate scans
  • Special precautions for pregnant and breastfeeding individuals


Exploring the Safety of PET Scan: Myth vs Reality

Myth Reality
High radiation risk Low radiation exposure
Dangerous for all Specific medical purposes
Harmful for health Generally well-tolerated
Invasive procedure Non-invasive imaging
Risky for children Used in pediatric medicine
Permanent effects Temporary radiation
Not for everyone Risk assessment considered


PET Scan Price

Here are the estimated PET Scan Price in India with different top cities:

City Price Range (INR)*
Mumbai 10,000 - 40,000
New Delhi 12,000 - 40,000
Bangalore 10,000 - 40,000
Hyderabad 12,000 - 40,000
Kolkata 10,000 - 40,000
Pune 12,000 - 40,000
Lucknow 10,000 - 40,000
Noida 12,000 - 40,000
Surat 12,000 - 40,000
Gurugram 10,000 - 40,000
Patna 10,000 - 40,000
Chennai 12,000 - 40,000
Jaipur 12,000 - 40,000
Ahmedabad 10,000 - 40,000

*Prices are approximate and range may vary as per location, facility, type, and procedure.



Overall, PET Scan provide valuable insights into tissue function and metabolism through safe radiotracer use, aiding in medical diagnosis and research. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.



  • PET Scan - Wikipedia [1].
  • PET Scanning - StatPearls NIH [2].
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What is a PET scan?

A PET scan, or Positron Emission Tomography, is a medical imaging technique that uses a small amount of radioactive material and a special camera to visualize and assess various processes within the body. It provides detailed information about organ function and can detect abnormalities on a cellular level.

How does a PET scan work?

PET scans work by injecting a radioactive tracer into the patient's body, which emits positrons that interact with electrons in the tissues. These interactions produce gamma rays, which are detected by a PET scanner to create images of the body's metabolic activity.

What are the common uses of PET scans?

PET scans are commonly used to detect and diagnose cancer, assess cancer staging, monitor cancer treatment effectiveness, evaluate heart conditions, and study brain disorders like Alzheimer's disease.

Are PET scans safe?

PET scans are generally considered safe. The amount of radiation used is small and unlikely to cause harm. However, it's important for pregnant women to inform their healthcare provider before undergoing a PET scan.

How do I prepare for a PET scan?

Preparation may include fasting for several hours before the scan and avoiding strenuous physical activity. You should inform your healthcare provider about your medical history, medications, and allergies.

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