: a cross-sectional, three-dimensional image of an internal body part produced by computed tomography chiefly for diagnostic purposes
The CT scan showed dilation of the ventricles, the fluid-filled cavities in the brain.—
Burak Ozgur
Burak OzgurWhat distinguishes a CT scan from a conventional x-ray is its geometry. … Measurements are collected and assembled by a computer into images that correspond to anatomical slices of the body.—Adam Rogers
Adam Rogerscalled also CAT scan
see ct scanner
CT scanning
noun
Examples of CT scan in a Sentence
Recent Examples on the Web
Fortunately for him, a CT scan, performed in New York on Thursday, came back clean.
—Gary Phillips, New York Daily News, 1 May 2026
Talley allegedly was able to hide a gun until a CT scan was about to be performed.
—Chicago Tribune, 1 May 2026
And that follow-up, a low-dose CT scan, showed the mass had grown.
—Armstrong Williams, Baltimore Sun, 1 May 2026
Talley removed his pants, but was given a gown and a blanket to wear during a CT scan.
—Sabrina Franza, CBS News, 30 Apr. 2026
Yang and Sequist are preparing a trial that would follow people whose smoking history doesn’t qualify them for regular screening but who received a CT scan for some other medical reason.
—Caleb Hellerman, CNN Money, 29 Apr. 2026
Lee says in the document, filed in federal court in the Western District of Texas, that El Gamal was initially denied a CT scan recommended by a doctor at the Dilley Detention Center.
—Mike Hixenbaugh, NBC news, 16 Apr. 2026
The family's neighbors stepped in to care for Lily while both parents took Henry to the emergency room, and the toddler received X-rays, a CT scan and a neurological exam.
—Adam England, PEOPLE, 16 Apr. 2026
In a CT scan, coronary artery calcium shows up as distinct, bright pixels.
—Katie Palmer, STAT, 15 Apr. 2026
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Gary Phillips, New York Daily News, 1 May 2026
Talley allegedly was able to hide a gun until a CT scan was about to be performed.
—Chicago Tribune, 1 May 2026
And that follow-up, a low-dose CT scan, showed the mass had grown.
—Armstrong Williams, Baltimore Sun, 1 May 2026
Talley removed his pants, but was given a gown and a blanket to wear during a CT scan.
—Sabrina Franza, CBS News, 30 Apr. 2026
Yang and Sequist are preparing a trial that would follow people whose smoking history doesn’t qualify them for regular screening but who received a CT scan for some other medical reason.
—Caleb Hellerman, CNN Money, 29 Apr. 2026
Lee says in the document, filed in federal court in the Western District of Texas, that El Gamal was initially denied a CT scan recommended by a doctor at the Dilley Detention Center.
—Mike Hixenbaugh, NBC news, 16 Apr. 2026
The family's neighbors stepped in to care for Lily while both parents took Henry to the emergency room, and the toddler received X-rays, a CT scan and a neurological exam.
—Adam England, PEOPLE, 16 Apr. 2026
In a CT scan, coronary artery calcium shows up as distinct, bright pixels.
—Katie Palmer, STAT, 15 Apr. 2026
Cite this Entry
“CT scan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/CT%20scan. Accessed 5 May. 2026.
Copy CitationMedical Definition
CT scan
noun
: a cross-sectional, three-dimensional image of an internal body part produced by computed tomography chiefly for diagnostic purposes
A CT scan detected a lesion on her jawbone …—David Wallis, The New York Times
David Wallis, The New York TimesThe CT scan showed dilation of the ventricles, the fluid-filled cavities in the brain.—Burak Ozgur, Discover
Burak Ozgur, DiscoverThe CT scan shows a large mass within the lumen of the ascending colon.—The New England Journal of Medicine
The New England Journal of MedicineWhat distinguishes a CT scan from a conventional x-ray is its geometry. … Measurements are collected and assembled by a computer into images that correspond to anatomical slices of the body.—Adam Rogers, Harvard Medical Health Letter
Adam Rogers, Harvard Medical Health Lettercalled also CAT scan
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