• Anglický jazyk

Nuclear medicine

Autor: Source: Wikipedia

Source: Wikipedia. Pages: 61. Chapters: Positron emission tomography, Electron-positron annihilation, Medical imaging, Technetium-99m, Radiopharmacology, National Research Universal Reactor, Single photon emission computed tomography, Linear no-threshold... Viac o knihe

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Source: Wikipedia. Pages: 61. Chapters: Positron emission tomography, Electron-positron annihilation, Medical imaging, Technetium-99m, Radiopharmacology, National Research Universal Reactor, Single photon emission computed tomography, Linear no-threshold model, Cardiac stress test, Chalk River Laboratories, Nuclear medicine physician, Cardiovascular magnetic resonance imaging, Cardiac MRI perfusion, Gamma camera, Institute for Transuranium Elements, Iodine-125, Therac-25, Radioactive tracer, VistA imaging, American Board of Nuclear Medicine, MAG3 scan, Iodine-123, PET-CT, Joseph Gilbert Hamilton, Bone scan, Ioflupane, Scintigraphy, BHIE, Technetium-99m generator, Gallium-68 generator, IASON, Pertechnetate, Gamma probe, Technetium tc-99m albumin aggregated, Frans Wackers, Rectilinear scanner, Gated SPECT, Scintillography, Institute of Nuclear Medicine, Oncology and Radiotherapy, Society of Nuclear Medicine, Radioactive iodine uptake test, Well counter, Dose area product, Australasian College of Physical Scientists and Engineers in Medicine, Oxygen enhancement ratio, Octreotide scan, IBZM, Radioimmunodetection. Excerpt: Positron emission tomography (PET) is a nuclear medicine imaging technique that produces a three-dimensional image or picture of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on a biologically active molecule. Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern scanners, three dimensional imaging is often accomplished with the aid of a CT X-ray scan performed on the patient during the same session, in the same machine. If the biologically active molecule chosen for PET is FDG, an analogue of glucose, the concentrations of tracer imaged then give tissue metabolic activity, in terms of regional glucose uptake. Although use of this tracer results in the most common type of PET scan, other tracer molecules are used in PET to image the tissue concentration of many other types of molecules of interest. The concept of emission and transmission tomography was introduced by David E. Kuhl and Roy Edwards in the late 1950s. Their work later led to the design and construction of several tomographic instruments at the University of Pennsylvania. Tomographic imaging techniques were further developed by Michel Ter-Pogossian, Michael E. Phelps and others at the Washington University School of Medicine. Work by Gordon Brownell, Charles Burnham and their associates at the Massachusetts General Hospital beginning in the 1950s contributed significantly to the development of PET technology and included the first demonstration of annihilation radiation for medical imaging. Their innovations, including the use of light pipes, and volumetric analysis have been important in the deployment of PET imaging. In 1961, James Robertson and his associates at Brookhaven National Laboratory built the first single-plane PET scan, nicknamed the "head-shrinker." It is interesting to note that one of the factors mos

  • Vydavateľstvo: Books LLC, Reference Series
  • Rok vydania: 2011
  • Formát: Paperback
  • Rozmer: 246 x 189 mm
  • Jazyk: Anglický jazyk
  • ISBN: 9781156550571

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