PET-CT India is a advanced molecular imaging procedure that provides a way to diagnose disease through the measurement of metabolic activity. CT stands for Computerized Tomography. CT is an X-ray test that generates a detailed view of the anatomy of structure of organs and tissues in the body. The CT scan can show the structural details of blood vessels, lymph nodes and organ systems. A PET CT India a combination of a PET scanner and a High Resolution Multi-slice CT which fuses the functional images of PET with the high resolution structural images of CT.
How does PET-CT Technology help?
By combining the strengths of the two modalities, the PET CT scanner affords unparalleled diagnostic capabilities, particularly in the fields of oncology (cancer), cardiology and neurology. By using a 32 slice/second MDCT and by doing a contrast enhanced multi-phasic CT and combining it with functional information of PET, the examination can give all the information required for staging and management of disease in a single test, rather than undergoing separate examinations.
PET helps physicians to improve the accuracy of a diagnosis, create an individualized treatment plan, and closely monitor a patient's progress.
Radiation oncologists can use PET CT 's combined information about metabolic activity and anatomical location to better tailor radiation fields reaching all the cancer cells while avoiding damage to the surrounding healthy tissue. Surgeons can use PET CT to pinpoint exactly where to perform a biopsy or surgical excision.
How does PET-CT Work?
During a PET scan, the patient is first injected with a radiopharmaceutical compound, usually FDG, a radioactive glucose compound. The compound distributes throughout the body and accumulates in various organs depending on the metabolic activity within the organ or tissue. Because cancer cells usually have a higher metabolic rate than surrounding cells, they absorb more of the tracer and will show up more prominently on the image. The PET CT scanner detects the FDG accumulated in glucose-avid organs or tissues and creates images that are displayed as colour-coded images.
At the Mahajan Imaging, a high resolution 3-dimensional contrast enhanced CT Scan is obtained in most cases. Acquiring 0.625 mm thick slices in all planes, using volume acquisition on a 32 slice/second MDCT, obviates the need for a separate CT scan examination and makes the PET CT very cost-effective. Where necessary, CT Angiography is also performed in the same sitting.
Major Indications for PET-CT
PET CT And Cancer
PET CT And Neurology
PET CT And Cardiology
PET CT And Infection
Prior to the exam you will receive a small injection of radioactive sugar (FDG). You will be asked to sit or lie down on a comfortable chair or bed for 30-60 minutes while the FDG travels throughout your body. It is important that you do not talk, read, walk around or chew gum during this period. In some cases you may be asked to drink medicine (oral contrast). This will be at regular intervals before the actual scan is performed. After this short time, the technologist will assist you to the scanner. The CT portion of the exam is completed first followed by the PET portion. An intravenous non-ionic iodinated contrast may be injected for the CT scan. It is important that you don't move for the duration of the scan. The length of the exam is determined by your height and area of interest. Most PET CT scans at our centre are typically completed within 20-30 minutes.
After the Scan
Once the scan has been performed you may resume normal daily activity. Even though the FDG and contrast will quickly leave your body, you can expedite the process by drinking plenty of water after your scan is complete. Your PET CT result will not be immediately available, but the reading physician will contact your referring doctor to convey all pertinent information gathered from the scan. You can collect your scan report the next day.
Since the radioactive glucose prepared for you is expensive and has a very short life it is imperative that you keep your appointment on time. In case you need to cancel your appointment please inform us at least 24 hours ahead.
Mahajan PET-CT & Nuclear Medicine Centre
Sir Ganga Ram Hospital , Rajinder Nagar,
New Delhi -110060