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Positron emission tomography

Index Positron emission tomography

Positron-emission tomography (PET) is a nuclear medicine functional imaging technique that is used to observe metabolic processes in the body as an aid to the diagnosis of disease. [1]

164 relations: Abass Alavi, Adrenal cortex, Alzheimer's disease, Ammonia, Amyloid, Anesthesia, Aromatic L-amino acid decarboxylase, Atherosclerosis, Avalanche photodiode, Avid Radiopharmaceuticals, Bayesian probability, Beta decay, Cancer, Cancer Care Ontario, Cardiac muscle, Cardiology, Center-of-momentum frame, Cho Zang-hee, Chord (geometry), Cognitive neuroscience, Compton scattering, Cost-effectiveness analysis, CT scan, Cyclotron, DASB, Data set, David E. Kuhl, Dead time, Denver, Desmethoxyfallypride, Diffuse optical imaging, Dopamine, Dopamine receptor, Edward J. Hoffman, Electromyography, Electron, Electron capture, Electron–positron annihilation, England, Enterobacteriaceae, Expectation–maximization algorithm, Fallypride, Fludeoxyglucose (18F), Fluorine-18, Fluorodopa, Forschungszentrum Jülich, Functional imaging, Functional magnetic resonance imaging, Gamma camera, Gamma ray, ..., Gina Kolata, Glucose, Gluteus minimus, Half-life, Health Physics Society, Hexokinase, Hibernating myocardium, Hodgkin's lymphoma, Hot cell, I. J. Good, Image registration, Image-guided surgery, Institute for Science and International Security, International Atomic Energy Agency, International Commission on Radiological Protection, Iobenguane, Ionizing radiation, Isotope, Isotopes of carbon, Isotopes of gallium, Isotopes of oxygen, Isotopes of zirconium, Isotopic labeling, Jaszczak phantom, Laplace distribution, Ligand (biochemistry), Lung cancer, Magnetic resonance imaging, Malignancy, Maltose, Massachusetts General Hospital, Mefway (18F), Metabolic trapping, Metastasis, Metomidate, Michael E. Phelps, Michel Ter-Pogossian, Mitochondrion, Molecular biology, Molecular imaging, Mood disorder, N-localizer, Nanosecond, National Health Service, Neoplasm, Neuroimaging, Neurology, Neuropsychology, Neurotransmitter receptor, Nicotinic acetylcholine receptor, Nifene, Nitrogen-13, Non-Hodgkin lymphoma, Nuclear medicine, Nuclear physics, Nuclear Regulatory Commission, Oncology, Opioid receptor, Orders of magnitude (radiation), Oxygen, Perfusion, PET-CT, Pharmacokinetics, Pheochromocytoma, Philadelphia, Phosphate, Phosphorylation, Photomultiplier, Photon, Picosecond, Pittsburgh compound B, Positron, Positron emission, Prior probability, Psychiatry, Raclopride, Radioactive tracer, Radioligand, Radiology, Radiology (journal), Radionuclide, Radiosurgery, Radon transform, Rubidium, Rubidium-82, Rubidium-82 chloride, Schizophrenia, Scintillator, Serotonin transporter, Shot noise, Sieve estimator, Sievert, Signal-to-noise ratio, Single-photon emission computed tomography, Sorbitol, Stereotactic surgery, Stroke, Structural analog, Substance abuse, Tesla (unit), The Journal of Nuclear Medicine, The New York Times, Tomography, Total variation denoising, Ulf Grenander, Ultrasound, University of Pennsylvania, Vastus intermedius muscle, Washington University School of Medicine, Water, Wavelet, X-ray, 5-HT receptor, 5-HT1A receptor. Expand index (114 more) »

Abass Alavi

Abass Alavi (عباس علوی.) is an Iranian-American physician-scientist specializing in the field of molecular imaging, most notably in the imaging modality of positron emission tomography (PET).

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Adrenal cortex

Situated along the perimeter of the adrenal gland, the adrenal cortex mediates the stress response through the production of mineralocorticoids and glucocorticoids, such as aldosterone and cortisol, respectively.

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Alzheimer's disease

Alzheimer's disease (AD), also referred to simply as Alzheimer's, is a chronic neurodegenerative disease that usually starts slowly and worsens over time.

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Ammonia

Ammonia is a compound of nitrogen and hydrogen with the formula NH3.

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Amyloid

Amyloids are aggregates of proteins that become folded into a shape that allows many copies of that protein to stick together forming fibrils.

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Anesthesia

In the practice of medicine (especially surgery and dentistry), anesthesia or anaesthesia (from Greek "without sensation") is a state of temporary induced loss of sensation or awareness.

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Aromatic L-amino acid decarboxylase

Aromatic L-amino acid decarboxylase (AADC or AAAD), also known as DOPA decarboxylase (DDC), tryptophan decarboxylase, and 5-hydroxytryptophan decarboxylase, is a lyase enzyme.

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Atherosclerosis

Atherosclerosis is a disease in which the inside of an artery narrows due to the build up of plaque.

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Avalanche photodiode

An avalanche photodiode (APD) is a highly sensitive semiconductor electronic device that exploits the photoelectric effect to convert light to electricity.

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Avid Radiopharmaceuticals

Avid Radiopharmaceuticals is an American company, founded by Dr.

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Bayesian probability

Bayesian probability is an interpretation of the concept of probability, in which, instead of frequency or propensity of some phenomenon, probability is interpreted as reasonable expectation representing a state of knowledge or as quantification of a personal belief.

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Beta decay

In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which a beta ray (fast energetic electron or positron) and a neutrino are emitted from an atomic nucleus.

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Cancer

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

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Cancer Care Ontario

Cancer Care Ontario is an agency of the provincial Government of Ontario that is responsible for improving cancer services.

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Cardiac muscle

Cardiac muscle (heart muscle) is one of the three major types of muscle, the others being skeletal and smooth muscle.

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Cardiology

Cardiology (from Greek καρδίᾱ kardiā, "heart" and -λογία -logia, "study") is a branch of medicine dealing with disorders of the heart as well as parts of the circulatory system.

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Center-of-momentum frame

In physics, the center-of-momentum frame (also zero-momentum frame or COM frame) of a system is the unique (up to velocity but not origin) inertial frame in which the total momentum of the system vanishes.

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Cho Zang-hee

Zang-Hee Cho, Ph.D, is a Korean neuroscientist who developed the first Ring-PET scanner and the scintillation detector BGO.

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Chord (geometry)

A chord of a circle is a straight line segment whose endpoints both lie on the circle.

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Cognitive neuroscience

The term cognitive neuroscience was coined by George Armitage Miller and Michael Gazzaniga in year 1976.

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Compton scattering

Compton scattering, discovered by Arthur Holly Compton, is the scattering of a photon by a charged particle, usually an electron.

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Cost-effectiveness analysis

Cost-effectiveness analysis (CEA) is a form of economic analysis that compares the relative costs and outcomes (effects) of different courses of action.

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CT scan

A CT scan, also known as computed tomography scan, makes use of computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.

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Cyclotron

A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1929-1930 at the University of California, Berkeley, and patented in 1932.

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DASB

DASB, 3-amino-4-(2-dimethylaminomethylphenylsulfanyl)-benzonitrile, is a compound that binds to the serotonin transporter.

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Data set

A data set (or dataset) is a collection of data.

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David E. Kuhl

David Edmund Kuhl (born October 27, 1929 in St. Louis, Missouri, died May 28, 2017 in Ann Arbor, Michigan) was an American scientist specializing in nuclear medicine.

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Dead time

For detection systems that record discrete events, such as particle and nuclear detectors, the dead time is the time after each event during which the system is not able to record another event.

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Denver

Denver, officially the City and County of Denver, is the capital and most populous municipality of the U.S. state of Colorado.

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Desmethoxyfallypride

Desmethoxyfallypride is a moderate affinity dopamine D2 receptor/D3 receptor antagonist used in medical research, usually in the form of the radiopharmaceuticals desmethoxyfallypride or DMFP(18F) and has been used in human studies as a positron emission tomography (PET) radiotracer.

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Diffuse optical imaging

Diffuse optical imaging (DOI) is a method of imaging using near-infrared spectroscopy (NIRS) or fluorescence-based methods.

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Dopamine

Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is an organic chemical of the catecholamine and phenethylamine families that plays several important roles in the brain and body.

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Dopamine receptor

Dopamine receptors are a class of G protein-coupled receptors that are prominent in the vertebrate central nervous system (CNS).

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Edward J. Hoffman

Edward Joseph Hoffman (January 1, 1942 – July 1, 2004) helped invent the first human PET scanner, a commonly used whole-body scanning procedure for detecting diseases like cancer.

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Electromyography

Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.

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Electron

The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.

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Electron capture

Electron capture (K-electron capture, also K-capture, or L-electron capture, L-capture) is a process in which the proton-rich nucleus of an electrically neutral atom absorbs an inner atomic electron, usually from the K or L electron shell.

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Electron–positron annihilation

Electron–positron annihilation occurs when an electron and a positron (the electron's antiparticle) collide.

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England

England is a country that is part of the United Kingdom.

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Enterobacteriaceae

The Enterobacteriaceae are a large family of Gram-negative bacteria.

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Expectation–maximization algorithm

In statistics, an expectation–maximization (EM) algorithm is an iterative method to find maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variables.

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Fallypride

Fallypride is a high affinity dopamine D2/D3 receptor antagonist used in medical research, usually in the form of fallypride (18F) as a positron emission tomography (PET) radiotracer in human studies.

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Fludeoxyglucose (18F)

Fludeoxyglucose (18F) (INN), or fludeoxyglucose F 18 (USAN and USP), also commonly called fluorodeoxyglucose and abbreviated FDG, 18F-FDG or FDG, is a radiopharmaceutical used in the medical imaging modality positron emission tomography (PET).

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Fluorine-18

Fluorine-18 (18F) is a fluorine radioisotope which is an important source of positrons.

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Fluorodopa

Fluorodopa, also known as FDOPA, is a fluorinated form of L-DOPA primarily synthesized as its fluorine-18 isotopologue for use as a radiotracer in positron emission tomography (PET).

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Forschungszentrum Jülich

Forschungszentrum Jülich ("Jülich Research Centre") is a member of the Helmholtz Association of German Research Centres and is one of the largest interdisciplinary research centres in Europe.

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Functional imaging

Functional imaging (or physiological imaging), is a medical imaging technique of detecting or measuring changes in metabolism, blood flow, regional chemical composition, and absorption.

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Functional magnetic resonance imaging

Functional magnetic resonance imaging or functional MRI (fMRI) measures brain activity by detecting changes associated with blood flow.

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Gamma camera

A gamma camera (γ-camera), also called a scintillation camera or Anger camera, is a device used to image gamma radiation emitting radioisotopes, a technique known as scintigraphy.

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Gamma ray

A gamma ray or gamma radiation (symbol γ or \gamma), is penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.

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Gina Kolata

Gina Bari Kolata (born February 25, 1948) is an American science journalist, writing for The New York Times.

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Glucose

Glucose is a simple sugar with the molecular formula C6H12O6.

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Gluteus minimus

The gluteus minimus (or glutæus minimus), the smallest of the three gluteal muscles, is situated immediately beneath the gluteus medius.

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Half-life

Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half its initial value.

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Health Physics Society

The Health Physics Society (HPS) is a nonprofit scientific professional organization whose mission is excellence in the science and practice of radiation safety.

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Hexokinase

A hexokinase is an enzyme that phosphorylates hexoses (six-carbon sugars), forming hexose phosphate.

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Hibernating myocardium

In cardiology, hibernating myocardium is a state when some segments of the myocardium exhibit abnormalities of contractile function.

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Hodgkin's lymphoma

Hodgkin's lymphoma (HL) is a type of lymphoma which is generally believed to result from white blood cells of the lymphocyte kind.

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Hot cell

Shielded nuclear radiation containment chambers are commonly referred to as hot cells.

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I. J. Good

Irving John ("I. J."; "Jack") Good (9 December 1916 – 5 April 2009) The Times of 16-apr-09, http://www.timesonline.co.uk/tol/comment/obituaries/article6100314.ece was a British mathematician who worked as a cryptologist at Bletchley Park with Alan Turing.

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Image registration

Image registration is the process of transforming different sets of data into one coordinate system.

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Image-guided surgery

Image-guided surgery (IGS) is any surgical procedure where the surgeon uses tracked surgical instruments in conjunction with preoperative or intraoperative images in order to directly or indirectly guide the procedure.

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Institute for Science and International Security

The Institute for Science and International Security (ISIS) is a nonprofit, non-governmental institution to inform the public about "science and policy issues affecting international security." Founded in 1993, the group is led by founder and former United Nations IAEA nuclear inspector David Albright.

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International Atomic Energy Agency

The International Atomic Energy Agency (IAEA) is an international organization that seeks to promote the peaceful use of nuclear energy, and to inhibit its use for any military purpose, including nuclear weapons.

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International Commission on Radiological Protection

The International Commission on Radiological Protection (ICRP) is an independent, international, non-governmental organization, with the mission to provide recommendations and guidance on radiation protection.

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Iobenguane

Iobenguane, also known as metaiodobenzylguanidine or mIBG, or MIBG (tradename Adreview) is a radiopharmaceutical, used in a scintigraphy method called MIBG scan.

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Ionizing radiation

Ionizing radiation (ionising radiation) is radiation that carries enough energy to liberate electrons from atoms or molecules, thereby ionizing them.

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Isotope

Isotopes are variants of a particular chemical element which differ in neutron number.

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Isotopes of carbon

Carbon (6C) has 15 known isotopes, from 8C to 22C, of which 12C and 13C are stable.

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Isotopes of gallium

Natural gallium (31Ga) consists of a mixture of two stable isotopes: gallium-69 and gallium-71.

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Isotopes of oxygen

There are three known stable isotopes of oxygen (8O): 16O, 17O, and 18O.

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Isotopes of zirconium

Naturally occurring zirconium (40Zr) is composed of four stable isotopes (of which one may in the future be found radioactive), and one very long-lived radioisotope (96Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×1019 years; it can also undergo single beta decay, which is not yet observed, but the theoretically predicted value of t1/2 is 2.4×1020 years.

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Isotopic labeling

Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope (an atom with a detectable variation) through a reaction, metabolic pathway, or cell.

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Jaszczak phantom

A Jaszczak phantom (pronounced "Jay-zak") aka Data Spectrum ECT phantom is an imaging phantom used for validating scanner geometry, 3D contrast, uniformity, resolution, attenuation and scatter correction or alignment tasks in nuclear medicine.

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Laplace distribution

In probability theory and statistics, the Laplace distribution is a continuous probability distribution named after Pierre-Simon Laplace.

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Ligand (biochemistry)

In biochemistry and pharmacology, a ligand is a substance that forms a complex with a biomolecule to serve a biological purpose.

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Lung cancer

Lung cancer, also known as lung carcinoma, is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung.

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Magnetic resonance imaging

Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease.

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Malignancy

Malignancy is the tendency of a medical condition to become progressively worse.

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Maltose

Maltose, also known as maltobiose or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) bond. In the isomer isomaltose, the two glucose molecules are joined with an α(1→6) bond. Maltose is the two-unit member of the amylose homologous series, the key structural motif of starch. When beta-amylase breaks down starch, it removes two glucose units at a time, producing maltose. An example of this reaction is found in germinating seeds, which is why it was named after malt. Unlike sucrose, it is a reducing sugar.

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Massachusetts General Hospital

Massachusetts General Hospital (Mass General or MGH) is the original and largest teaching hospital of Harvard Medical School and a biomedical research facility located in the West End neighborhood of Boston, Massachusetts.

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Mefway (18F)

Mefway is a serotonin 5-HT1A receptor antagonist used in medical research, usually in the form of mefway (18F) as a positron emission tomography (PET) radiotracer.

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Metabolic trapping

Metabolic trapping is a localization mechanism of the synthesized radiocompounds in human body.

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Metastasis

Metastasis is a pathogenic agent's spread from an initial or primary site to a different or secondary site within the host's body; it is typically spoken of as such spread by a cancerous tumor.

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Metomidate

Metomidate is a non-barbiturate imidazole that was discovered by Janssen Pharmaceutica in 1965 and under the names (Hypnodil, Nokemyl) is sold as a sedative-hypnotic drug used in Europe to treat humans and for veterinary purposes.

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Michael E. Phelps

Michael Edward Phelps (born August 24, 1939) is a professor and an American biophysicist.

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Michel Ter-Pogossian

Michel Matthew Ter-Pogossian (April 21, 1925 – June 19, 1996) was an Armenian-American nuclear physicist who is one of the fathers of positron emission tomography (PET), the first functional brain imaging technology.

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Mitochondrion

The mitochondrion (plural mitochondria) is a double-membrane-bound organelle found in most eukaryotic organisms.

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Molecular biology

Molecular biology is a branch of biology which concerns the molecular basis of biological activity between biomolecules in the various systems of a cell, including the interactions between DNA, RNA, proteins and their biosynthesis, as well as the regulation of these interactions.

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Molecular imaging

Molecular imaging originated from the field of radiopharmacology due to the need to better understand fundamental molecular pathways inside organisms in a noninvasive manner.

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Mood disorder

Mood disorder, also known as mood (affective) disorders, is a group of conditions where a disturbance in the person's mood is the main underlying feature.

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N-localizer

The N-localizer or N-bar is a device that enables guidance of stereotactic surgery or radiosurgery using tomographic images that are obtained via medical imaging technologies such as X-ray computed tomography (CT), magnetic resonance imaging (MRI) or positron emission tomography (PET).

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Nanosecond

A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second (or one billionth of a second), that is, 1/1,000,000,000 of a second, or 10 seconds.

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National Health Service

The National Health Service (NHS) is the name used for each of the public health services in the United Kingdom – the National Health Service in England, NHS Scotland, NHS Wales, and Health and Social Care in Northern Ireland – as well as a term to describe them collectively.

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Neoplasm

Neoplasia is a type of abnormal and excessive growth of tissue.

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Neuroimaging

Neuroimaging or brain imaging is the use of various techniques to either directly or indirectly image the structure, function/pharmacology of the nervous system.

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Neurology

Neurology (from νεῦρον (neûron), "string, nerve" and the suffix -logia, "study of") is a branch of medicine dealing with disorders of the nervous system.

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Neuropsychology

Neuropsychology is the study of the structure and function of the brain as they relate to specific psychological processes and behaviours.

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Neurotransmitter receptor

A neurotransmitter receptor (also known as a neuroreceptor) is a membrane receptor protein that is activated by a neurotransmitter.

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Nicotinic acetylcholine receptor

Nicotinic acetylcholine receptors, or nAChRs, are receptor proteins that respond to the neurotransmitter acetylcholine.

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Nifene

Nifene is a high affinity, selective nicotinic α4β2* receptor partial agonist used in medical research for nicotinic acetylcholine receptors, usually in the form of nifene (18F) as a positron emission tomography (PET) radiotracer.

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Nitrogen-13

Nitrogen-13 is a radioisotope of nitrogen used in positron emission tomography (PET).

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Non-Hodgkin lymphoma

Non-Hodgkin lymphoma (NHL) is a group of blood cancers that includes all types of lymphoma except Hodgkin's lymphomas.

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Nuclear medicine

Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.

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Nuclear physics

Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions.

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Nuclear Regulatory Commission

The Nuclear Regulatory Commission (NRC) is an independent agency of the United States government tasked with protecting public health and safety related to nuclear energy.

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Oncology

Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer.

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Opioid receptor

Opioid receptors are a group of inhibitory G protein-coupled receptors with opioids as ligands.

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Orders of magnitude (radiation)

Recognized effects of higher acute radiation doses are described in more detail in the article on radiation poisoning.

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Oxygen

Oxygen is a chemical element with symbol O and atomic number 8.

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Perfusion

Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.

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PET-CT

Positron emission tomography–computed tomography (better known as PET-CT or PET/CT) is a nuclear medicine technique which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed (co-registered) image.

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Pharmacokinetics

Pharmacokinetics (from Ancient Greek pharmakon "drug" and kinetikos "moving, putting in motion"; see chemical kinetics), sometimes abbreviated as PK, is a branch of pharmacology dedicated to determining the fate of substances administered to a living organism.

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Pheochromocytoma

Pheochromocytoma (PCC) is a neuroendocrine tumor of the medulla of the adrenal glands (originating in the chromaffin cells), or extra-adrenal chromaffin tissue that failed to involute after birth, that secretes high amounts of catecholamines, mostly norepinephrine, plus epinephrine to a lesser extent.

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Philadelphia

Philadelphia is the largest city in the U.S. state and Commonwealth of Pennsylvania, and the sixth-most populous U.S. city, with a 2017 census-estimated population of 1,580,863.

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Phosphate

A phosphate is chemical derivative of phosphoric acid.

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Phosphorylation

In chemistry, phosphorylation of a molecule is the attachment of a phosphoryl group.

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Photomultiplier

Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.

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Photon

The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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Picosecond

A picosecond is an SI unit of time equal to 10−12 or 1/1,000,000,000,000 (one trillionth) of a second.

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Pittsburgh compound B

Pittsburgh compound B (PiB) is a radioactive analog of thioflavin T, which can be used in positron emission tomography scans to image beta-amyloid plaques in neuronal tissue.

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Positron

The positron or antielectron is the antiparticle or the antimatter counterpart of the electron.

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Positron emission

Positron emission or beta plus decay (β+ decay) is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe).

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Prior probability

In Bayesian statistical inference, a prior probability distribution, often simply called the prior, of an uncertain quantity is the probability distribution that would express one's beliefs about this quantity before some evidence is taken into account.

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Psychiatry

Psychiatry is the medical specialty devoted to the diagnosis, prevention and treatment of mental disorders.

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Raclopride

Raclopride is a synthetic compound that acts as a selective antagonist on D2 dopamine receptors.

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Radioactive tracer

A radioactive tracer, or radioactive label, is a chemical compound in which one or more atoms have been replaced by a radionuclide so by virtue of its radioactive decay it can be used to explore the mechanism of chemical reactions by tracing the path that the radioisotope follows from reactants to products.

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Radioligand

A radioligand is a radioactive biochemical substance (in particular, a ligand that is radiolabeled) that is used for diagnosis or for research-oriented study of the receptor systems of the body.

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Radiology

Radiology is the science that uses medical imaging to diagnose and sometimes also treat diseases within the body.

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Radiology (journal)

Radiology is a monthly, peer reviewed, medical journal, owned and published by the Radiological Society of North America.

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Radionuclide

A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.

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Radiosurgery

Radiosurgery is surgery using radiation, that is, the destruction of precisely selected areas of tissue using ionizing radiation rather than excision with a blade.

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Radon transform

In mathematics, the Radon transform is the integral transform which takes a function f defined on the plane to a function Rf defined on the (two-dimensional) space of lines in the plane, whose value at a particular line is equal to the line integral of the function over that line.

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Rubidium

Rubidium is a chemical element with symbol Rb and atomic number 37.

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Rubidium-82

Rubidium-82 (82Rb) is a radioactive isotope of rubidium.

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Rubidium-82 chloride

Rubidium-82 chloride is a form of rubidium chloride containing a radioactive isotope of rubidium.

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Schizophrenia

Schizophrenia is a mental disorder characterized by abnormal social behavior and failure to understand reality.

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Scintillator

A scintillator is a material that exhibits scintillation—the property of luminescence, when excited by ionizing radiation.

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Serotonin transporter

The serotonin transporter (SERT or 5-HTT) also known as the sodium-dependent serotonin transporter and solute carrier family 6 member 4 is a protein that in humans is encoded by the SLC6A4 gene.

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Shot noise

Shot noise or Poisson noise is a type of electronic noise which can be modeled by a Poisson process.

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Sieve estimator

In statistics, sieve estimators are a class of non-parametric estimator which use progressively more complex models to estimate an unknown high-dimensional function as more data becomes available, with the aim of asymptotically reducing error towards zero as the amount of data increases.

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Sievert

The sievert (symbol: SvNot be confused with the sverdrup or the svedberg, two non-SI units that sometimes use the same symbol.) is a derived unit of ionizing radiation dose in the International System of Units (SI) and is a measure of the health effect of low levels of ionizing radiation on the human body.

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Signal-to-noise ratio

Signal-to-noise ratio (abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.

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Single-photon emission computed tomography

Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays.

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Sorbitol

Sorbitol, less commonly known as glucitol, is a sugar alcohol with a sweet taste which the human body metabolizes slowly.

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Stereotactic surgery

Stereotactic surgery or stereotaxy is a minimally invasive form of surgical intervention which makes use of a three-dimensional coordinate system to locate small targets inside the body and to perform on them some action such as ablation, biopsy, lesion, injection, stimulation, implantation, radiosurgery (SRS), etc.

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Stroke

A stroke is a medical condition in which poor blood flow to the brain results in cell death.

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Structural analog

A structural analog, also known as a chemical analog or simply an analog, is a compound having a structure similar to that of another compound, but differing from it in respect to a certain component.

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Substance abuse

Substance abuse, also known as drug abuse, is a patterned use of a drug in which the user consumes the substance in amounts or with methods which are harmful to themselves or others, and is a form of substance-related disorder.

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Tesla (unit)

The tesla (symbol T) is a derived unit of magnetic flux density (informally, magnetic field strength) in the International System of Units.

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The Journal of Nuclear Medicine

The Journal of Nuclear Medicine is a monthly peer-reviewed medical journal published by Society of Nuclear Medicine and Molecular Imaging that covers research on all aspects of nuclear medicine, including molecular imaging.

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The New York Times

The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.

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Tomography

Tomography is imaging by sections or sectioning, through the use of any kind of penetrating wave.

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Total variation denoising

In signal processing, total variation denoising, also known as total variation regularization, is a process, most often used in digital image processing, that has applications in noise removal.

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Ulf Grenander

Ulf Grenander (23 July 1923 – 12 May 2016) was a Swedish statistician and professor of applied mathematics at Brown University.

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Ultrasound

Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.

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University of Pennsylvania

The University of Pennsylvania (commonly known as Penn or UPenn) is a private Ivy League research university located in University City section of West Philadelphia.

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Vastus intermedius muscle

The vastus intermedius (Cruraeus) arises from the front and lateral surfaces of the body of the femur in its upper two-thirds, sitting under the rectus femoris muscle and from the lower part of the lateral intermuscular septum.

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Washington University School of Medicine

Washington University School of Medicine (WUSM), located in St. Louis, Missouri, is the medical school of Washington University in St. Louis on the eastern border of Forest Park in St. Louis.

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Water

Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.

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Wavelet

A wavelet is a wave-like oscillation with an amplitude that begins at zero, increases, and then decreases back to zero.

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X-ray

X-rays make up X-radiation, a form of electromagnetic radiation.

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5-HT receptor

5-hydroxytryptamine receptors or 5-HT receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in the central and peripheral nervous systems.

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5-HT1A receptor

The serotonin 1A receptor (or 5-HT1A receptor) is a subtype of serotonin receptor (5-HT receptor) that binds the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT).

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Redirects here:

11C-Metomidate, FDG-PET, PET Scan, PET imaging, PET scan, PET scanner, PET scans, PET study, PET-CT scanning, PET-FDG, PET-scanner, PET/CT scan, Pet imaging, Pet scan, Pet scans, Positron Emission Tomography, Positron Emission Tomography Scan, Positron Emission Tomography Scans, Positron Emission Topography, Positron emission tomograph, Positron emission tomography scan, Positron emission tomography scanner, Positron emmision tomography, Positron-emission tomography, Radioisotope scan.

References

[1] https://en.wikipedia.org/wiki/Positron_emission_tomography

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