PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India

 

PET CT Scan in India

PET stands for positron emission tomography. The machine detects pairs of gamma rays which are emitted indirectly by a tracer which is placed in the body on a biologically active molecule. The images are reconstructed by computer analysis. Modern machines often use a CT X-ray scan which is performed on the patient at the same time in the same machine.
PET scans can be used to diagnose a health condition, as well as for finding out how an existing condition is developing. PET scans are often used to see how effective an ongoing treatment is.

Working of PET CT

Radiotracer - Before carrying out a PET scan, a radioactive medicine is produced in a cyclotron (a type of machine). The radioactive medicine is then tagged to a natural chemical. This natural chemical could be glucose, water, or ammonia. The tagged natural chemical is known as a radiotracer. The radiotracer is then inserted into the human body. 
When it is inside the radiotracer will go to areas inside the body that use the natural chemical. The glucose goes into those parts of the body that use glucose for energy. Cancers, for example, use glucose differently from normal tissue - so, FDG can show up cancers. Detecting positrons - A PET scan detects the energy emitted by positively-charge particles (positrons). As the radiotracer is broken down inside the patient's body positrons are made. This energy appears as a 3-dimensional image on a computer monitor.

The image - The image reveals how parts of the patients body function by the way they break down the radiotracer. A PET image will display different levels of positrons according to brightness and color.
When the image is complete it will be examined by a radiologist who reports his/her findings to a doctor. A radiologist is a doctor who specializes in interpreting these types of images, as well as MRI scan, CT scan, Ultrasound and X-ray images.

 

Conditions where PET CT is required

PET scans are commonly used to investigate the following conditions:
Brain Tumours
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Breast Cancer
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Gynae Cancer
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Head & Neck Cancer
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Lung cancer
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Prostate cancer

Procedure of PET CT Scan

In most cases, the patient does not have to spend the night in hospital when he/she comes in for a PET scan. The following Steps are being followed:
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India Patients will be told not to consume any food for at least four to six hours before the scan, but to drink plenty of water. Some will be asked to refrain from consuming caffeine for at least 24 hours prior to the PET scan.
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India A small quantity of radiotracer will either be injected into the patient's arm or breathed in as a gas. The radiotracer may take anything from 30 minutes to 90 minutes to reach the targeted part of the body. 
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India When the patient is ready he/she will be taken to the room where the PET scan is and will lie down on a cushioned examination table.

• The machine has a large hole which the table slides into. Then images of the body are taken. 
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India While the scan is in process it is vital that the patient keep as still as possible. Depending on which part of the body is being scanned, the whole process takes from about 30 to 60 minutes.
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India The process is not painful & patients can go home as soon as the scan has been done

 

 

 

 

 

 

 

 

 

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PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India   PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India
     
PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India   PET CT Scan in India, Best Hospital for PET CT SCan in India, Cancer Staging in India

 

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