Positron emission tomography

PET is a nuclear medicine, working imaging ability that creates a three-dimensional image of functional processes within the human body. [1] First, chemicals which emits gamma radiation are injected into the human body, then; the system detects pairs of gamma rays emitted indirectly by a tracer to show images of bones and organs. These substances are injected into the body, and are usually tagged with a radioactive atom.[1] Doctors use this device to create images of bones and organs of the…

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Summary In the Article, What Can Neuroscience Tell Us about Evil?, the author Richard Brandt discusses how the advances in neuroscience reveal how the brains of psychopathic or sociopathic people are different. For example, some brain-imaging techniques show that not only do some of the psychopathic or sociopathic minds lack emotions such as empathy, but also, some techniques expose that these certain sections of the brain are inactive (Brandt, 2007). Furthermore, fMRI scans illustrate that in…

A positron emission tomography (PET) scan is an imaging test used by doctors to check for the disease in the patient's body. This PET scan also can use to measure blood flow, oxygen use and can detect cancer, heart problems, brain disorders and another. PET scans use radioactive materials called tracers to find diseases in the body and it will shows how organs and tissues are working. Stacy Simon reported annual statistics reporting from the American Cancer Society shows the death rate from…

medical radionuclide production highly used reactors, accelerators and cyclotrons. Among the 1500 nuclides that are available, reactor-produced radionuclides are usually electron rich. This property result for the nuclides to decay by β negative emission that was used for cancer therapy. Some reactor-produced radionuclides were used for nuclear medicine imaging. The other aspect of medical radionuclide production was…

Nuclear medicine is used by physicians all over the world, pre-dating Computed Tomography (CT), Magnetic Resonance Imaging (MRI), and Ultrasound technology. Tests are conducted using pharmaceuticals in conjunction with specific mechanical imaging, allowing optimal diagnosis for various conditions. Nuclear medicine allows doctors to see inside the body in ways that X-ray, CT, and MRI alone cannot, providing the most accurate way to study and diagnose specific abnormalities within the body’s…

find potential biomarkers that will allow to detect early stages of the disease, and so far Brain Imaging/Neuroimaging have been the top contender. There has been the development of tracers such as Florbetapir F-18 which during a PET(Positron Emission Tomography) brain scan reveals amyloid plaques in the brain of tested patients. Others that have been made are Flutemetamol F18 (approved in 2013) which binds and reveals the amyloid plaque. Florbetaben F18 (approved in 2014), also attaches and…

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spiraling out of control causing increasing atmospheric temperature which contributes to negative climate changes. Due to transportation emitting twenty-three percent of greenhouse gas emissions, it is only fair to say that countries all over the world should enforce proper regulations and requirements to slow down these emissions. Renewable energies has created many solutions for reduce greenhouse gases. Once these alternatives are implemented more effectively the dilemma of global warming will…

limit their Greenhouse Emissions. These countries greatly promote alternative energy, organic produce and recycling. In countries where these social values haven’t been instituted, there exists a reduced drive to promote the reduction of Greenhouse Emissions. Lastly, the political atmosphere of a country affects the Total Greenhouse Gas Emissions of an individual. Much like the social factors, a government can do much to promote the reduction of the Greenhouse Gas Emissions of its citizens.…