tomography

(noun)

Imaging by sections or sectioning.

Related Terms

Examples of tomography in the following topics:

  • Emission Topography

    • Positron emission tomography is a nuclear medical imaging technique that produces a three-dimensional image of processes in the body.
    • Positron emission tomography (PET) is a nuclear medical imaging technique that produces a three-dimensional image or picture of functional processes in the body.
    • A technique much like the reconstruction of computed tomography (CT) and single-photon emission computed tomography (SPECT) data is more commonly used, although the data set collected in PET is much poorer than CT, so reconstruction techniques are more difficult.
    • Discuss possibility of uses of positron emission tomography with other diagnostic techniques.

  • X-Ray Imaging and CT Scans

    • Tomography refers to imaging by sections, or sectioning. demonstrates this concept.
    • CT scans, or computed tomography scans use a combination of X-ray radiography and tomography to produce slices of areas of the human body.

  • NMR and MRIs

    • Magnetic resonance imaging (MRI), also called nuclear magnetic resonance imaging (NMRI) or magnetic resonance tomography (MRT), is a medical imaging technique used in radiology to visualize internal structures of the body in detail.
    • MRI shows a marked contrast between the different soft tissues of the body, making it especially useful in imaging the brain, the muscles, the heart, and cancerous tissue—as compared with other medical imaging techniques such as computed tomography (CT) or X-rays.

  • Medical Imaging

    • These 2D techniques are still in wide use despite the advance of 3D tomography due to the low cost, high resolution, and depending on application, lower radiation dosages.
    • Positron emission tomography (PET) uses coincidence detection to image functional processes .
    • Computed Tomography (CT), or Computed Axial Tomography (CAT) or CT scan is also known as a CAT scan, and is a helical tomography (latest generation), which traditionally produces a 2D image of the structures in a thin section of the body .
    • A CT scan image showing a ruptured abdominal aortic aneurysm.X-ray computed tomography, also computed tomography (CT scan) or computed axial tomography (CAT scan), is a medical imaging procedure that utilizes computer-processed X-rays to produce tomographic images or 'slices' of specific areas of the body.These cross-sectional images are used for diagnostic and therapeutic purposes in various medical disciplines.

  • Bone Scans

    • Some lesions, especially lytic (destructive) ones, require positron emission tomography (PET) for visualization.
    • This image demonstrates a Siemens single-photon emission computed tomography machine in operation, doing a total body bone scan.

  • Biopsychology

    • Three types of scans include (left to right) PET scan (positron emission tomography), CT scan (computed tomography), and fMRI (functional magnetic resonance imaging).

  • Matter and Antimatter

    • Matter-antimatter reactions have practical applications in medical imaging, such as in positron emission tomography (PET).

  • Radiation Detection

    • Scintillators can also be used in neutron and high-energy particle physics experiments, new energy resource exploration, x-ray security, nuclear cameras, computed tomography, and gas exploration.

  • Brain Imaging Techniques

    • Positron emission tomography (PET) scans measure levels of the sugar glucose in the brain in order to illustrate where neural firing is taking place.

  • Structure of a Nerve

    • This initial exam can be followed with tests such as nerve conduction study, electromyography, or computed tomography.