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PET scan and HD-PET/CT is often used to investigate the following conditions: epilepsy, Alzheimer’s disease, cancer and heart disease.

PET scan and HD-PET/CT is often used to investigate the following conditions: epilepsy, Alzheimer’s disease, cancer and heart disease.
آذر ۱۵, ۱۳۹۴

IPD group made some agreements with best European,Turkish, and Indian hospitals for offering PET/CT and HD-PET/CT diagnosis system to Iranian patient outside of Iran with better price and best quality services.

HD-PET/CT technology combines superior PET resolution with uniform resolution across the entire transverse field of view, resulting in higher lesion contrast. It improves spatial resolution to an unparalleled 2 millimeters throughout the entire field of view. The advances in spatial resolution and uniformity potentially translate into a wide array of clinical benefits — including improved visualization of metastases, superior edge detection to help clinicians develop highly accurate radiation therapy plans and improved visualization of smaller lesions in all patients, regardless of size.

A PET scan uses radiation, or nuclear medicine imaging, to produce 3-dimensional, color images of the functional processes within the human body.

PET stands for positron emission tomography. The machine detects pairs of gamma rays that 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 a 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.

A PET scan uses radiation to create 3-dimensional, color images of the functional processes in the human body.
PET is an acronym for positron emission tomography.
PET scans are often used to diagnose a condition or how a condition is developing.
They are used alongside X-rays or MRI (magnetic resonance imaging) scan to diagnose or provide more insight into a condition.
PET scans are often used to investigate the following conditions: epilepsy, Alzheimer’s disease, cancer, heart disease.
A CT or MRI scan examines the size and shape of body organs and tissue. A PET scan looks at function of those organs.
Patients are told to not consume any food for at least four to six hours prior to a scan, but to drink plenty of water. instead
PET scans are not painful.
Once the scan is complete, patients can go home. Patients should drinks lots of liquid afterward to flush the radioactive drugs from system
Pregnant women and women who are breastfeeding should not have a PET scan as there is a risk for the baby.

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. For example, FDG (fluorodeoxyglucose – a radioactive drug) is tagged to glucose to make a radiotracer. 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 the findings to the 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.
Why are PET scans required?

PET scans are used alongside X-rays or MRI (magnetic resonance imaging) scans. They are used to make a diagnosis or to get more data about a health condition. As mentioned above, they are also useful in finding out how effective current treatment is. The use of combined imaging technologies may hold the key to stopping – and even preventing – heart attacks, a study revealed.

The biggest advantage of a PET scan, compared to an MRI scan or X-ray, is that it can reveal how a part of the patient’s body is functioning, rather than just how it looks. Medical researchers find this aspect of PET scans particularly useful.

PET scans are commonly used to investigate the following conditions:

Epilepsy

It can reveal which part of the patient’s brain is being affected by epilepsy. This helps doctors decide on the most suitable treatments. MRI or CT scans are recommended for people after a first seizure, this study explains.

Alzheimer’s disease

It is very useful in helping the doctor diagnose Alzheimer’s disease. A PET scan that measures uptake of sugar in the brain significantly improves the accuracy of diagnosing a type of dementia often mistaken for Alzheimer’s disease, a study revealed.

Cancer

PET scans can show up a cancer, reveal the stage of the cancer, show whether the cancer has spread, help doctors decide on the most appropriate cancer treatment, and give doctors an indication on the effectiveness of ongoing chemotherapy. A PET scan several weeks after starting radiation treatment for lung cancer can indicate whether the tumor will respond to the treatment, a study showed. This article looks at whether PET scans are beneficial during cancer diagnosis, staging and monitoring.

Heart disease

A PET scan helps detect which specific parts of the heart have been damaged or scarred. Any faults in the working of the heart are more likely to be revealed with the help of a PET scan. A study revealed how comprehensive diagnosis of heart disease based on a single CT scan is possible.

Medical research

Researchers, especially those involved in how the brain functions get a great deal of vital data from PET scans.

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