computed tomography


Definition of computed tomography

: radiography in which a three-dimensional image of a body structure is constructed by computer from a series of plane cross-sectional images made along an axis

called also computed axial tomography, computerized axial tomography, computerized tomography

Examples of computed tomography in a Sentence

Recent Examples on the Web None of this would be possible without computed tomography, or CT scans that use rotating X-ray machines to create cross-sectional images of the body. Rachel Pannett, WSJ, "Augmented Reality Offers a Promise of Incision-Free Autopsies," 30 Sep. 2020 In diagnostic medicine and in some surgical procedures, imaging contrast agents are materials used to improve internal body pictures produced by X-rays, computed tomography (CT) scans, magnetic resonance imaging (MRI), and ultrasounds. Courtney Sexton, Smithsonian Magazine, "Could Tattoo Ink Be Used to Detect Cancer?," 18 Sep. 2020 These days, non-invasive techniques are heavily favored, such as polarized light microscopy, conventional radiography, and medical X-ray computed tomography (CT). Jennifer Ouellette, Ars Technica, "Peer inside a mummified cat from ancient Egypt, courtesy of high-res 3D X-rays," 21 Aug. 2020 In fact, today Xprize announced another related challenge: the Covid-19 CT Scan Collaborative, which will award $1.8 million to teams that can devise methods for using computed tomography scans to fight Covid-19. Grace Huckins, Wired, "Solve the Covid-19 Testing Crunch, Win $5 Million," 11 Aug. 2020 The team, led by Catrin Rutland of the University of Nottingham, studied the chests of 16 chimpanzees with micro-computed tomography, an advanced kind of 3-D X-ray imaging, Brooks Hays reports for United Press International. Nora Mcgreevy, Smithsonian Magazine, "Tiny, Rare Bone Found in the Hearts of Chimpanzees," 16 June 2020 Fraser’s team, which used computed tomography and laser scans on the mummy, found resin fragments, bandages, bones and 7,000 glass beads in the coffin. Josh Magness, miamiherald, "For decades, scientists said 2,500-year-old coffin was empty. Then they looked inside | Miami Herald," 27 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'computed tomography.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of computed tomography

1974, in the meaning defined above

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The first known use of computed tomography was in 1974

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Last Updated

13 Oct 2020

Cite this Entry

“Computed tomography.” Dictionary, Merriam-Webster, Accessed 24 Nov. 2020.

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computed tomography


Medical Definition of computed tomography

: a method of producing a three-dimensional image of an internal body structure by computerized combination of two-dimensional cross-sectional X-ray images abbreviation CT

called also computed axial tomography, computerized axial tomography, computerized tomography

— see ct colonography, ct scan

More from Merriam-Webster on computed tomography

Britannica English: Translation of computed tomography for Arabic Speakers

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