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Computed Tomography (CT)

  • Reference work entry
  • First Online:
Endocrine Pathology

Part of the book series: Encyclopedia of Pathology ((EP))

  • 8 Accesses

Synonyms

ceCT Imaging (contrast enhanced); CT imaging

Definition

A Computed Tomography (CT) uses X-rays from different angles, usually in a helical geometry to obtain cross sectional images

Principle

X-rays are emitted by a source rotating around the patient (single axis of rotation) and the opposite absorption measured in all angles is reconstructed to a three dimensional image. A CT scan makes use of the different absorptions of different parts and organs of the body (e.g., bones versus lung). The reconstruction process was described by Hounsfield (Nobel Prize 1979). Since then many advances in the technique have been developed (e.g., the multidetector computed tomography (MDCT)) and it is today probably the most used cross sectional imaging technique. The images can be enhanced using iodinated contrast agent to visualize different phase of perfusion of organs and tissue.

Methodology

A CT scan is mandatory in all patients with neuroendocrine neoplasms. If there are no major...

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References and Further Reading

  • Maxwell, J. E., & Howe, J. R. (2015). Imaging in neuroendocrine tumors: An update for the clinician. International Journal of Endocrine Oncology, 2(2), 159–168.

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Author information

Authors and Affiliations

  1. Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, University Hospital of Lausanne, Lausanne, Switzerland

    Niklaus Schaefer

Authors
  1. Niklaus Schaefer
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Corresponding author

Correspondence to Niklaus Schaefer .

Editor information

Editors and Affiliations

  1. University of Insubria, Varese, Italy

    Stefano La Rosa

  2. Department of Medicine and Surgery, Unit of Pathology, University of Insubria, Varese, Italy

    Silvia Uccella

  3. Department of Biomedical Sciences, Humanitas University and Service of Pathology, Humanitas Research Hospital, Milan, Italy

    Silvia Uccella

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Schaefer, N. (2022). Computed Tomography (CT). In: La Rosa, S., Uccella, S. (eds) Endocrine Pathology. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-030-62345-6_5271

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  • DOI: https://doi.org/10.1007/978-3-030-62345-6_5271

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-62344-9

  • Online ISBN: 978-3-030-62345-6

  • eBook Packages: MedicineReference Module Medicine

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