ct scan: meaning, definition, pronunciation and examples
B2Formal, technical, medical
Quick answer
What does “ct scan” mean?
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the inside of the body.
Audio
Pronunciation
Definition
Meaning and Definition
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the inside of the body.
The procedure itself, the resulting images, or the machine used to perform the imaging. Informally, it can refer to the experience of undergoing the scan.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. 'CT scan' is the standard term in both regions. 'CAT scan' (Computed Axial Tomography) is an older synonym that is now less common but equally understood in both.
Connotations
None; purely technical/medical.
Frequency
Equally frequent and standard in both medical and general contexts.
Grammar
How to Use “ct scan” in a Sentence
The doctor ordered [OBJECT] a CT scan.They performed [OBJECT] a CT scan on the patient.The patient had [OBJECT] a CT scan.The results of [POSSESSOR] the CT scan were clear.Vocabulary
Collocations
Examples
Examples of “ct scan” in a Sentence
verb
British English
- The patient needs to be CT scanned to rule out a pulmonary embolism.
- They decided to CT scan his abdomen.
American English
- The radiologist will CT scan the patient's head.
- We need to CT scan that area with contrast.
adverb
British English
- (Not standard; no common adverbial use)
American English
- (Not standard; no common adverbial use)
adjective
British English
- The CT-scan findings were inconclusive.
- We reviewed the CT-scan report.
American English
- The CT scan results are back.
- She is a CT scan technologist.
Usage
Meaning in Context
Business
Rare, except in contexts of medical device manufacturing or hospital administration.
Academic
Common in medical and biomedical research papers and textbooks.
Everyday
Common when discussing medical tests, symptoms, and hospital visits.
Technical
The default, precise term in radiology, diagnostics, and clinical medicine.
Vocabulary
Synonyms of “ct scan”
Watch out
Common Mistakes When Using “ct scan”
- Incorrect capitalisation: 'ct Scan', 'Ct scan'.
- Using 'scan' alone ambiguously (could be MRI or ultrasound).
- Incorrect article: 'He went to a CT scan' (better: 'for a CT scan' or 'to have a CT scan').
FAQ
Frequently Asked Questions
No. A CT scan uses X-rays, while an MRI uses strong magnets and radio waves. They show different tissue types and have different uses and safety profiles.
The actual scanning process is very quick, often just a few minutes, though the entire appointment including preparation may take 30-60 minutes.
It involves exposure to a low dose of ionising radiation, so it is not performed without a clear medical need. The benefits of an accurate diagnosis typically outweigh the small risks.
There is no difference. 'CAT scan' (Computed Axial Tomography) is an older name for the same technology. 'CT scan' is now the more common term.
A medical imaging procedure that uses X-rays and computer processing to create detailed cross-sectional images of the inside of the body.
Ct scan is usually formal, technical, medical in register.
Ct scan: in British English it is pronounced /ˌsiː ˈtiː skæn/, and in American English it is pronounced /ˌsi ˈti skæn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “As clear as a CT scan (rare, metaphorical for something very revealing).”
Learning
Memory Aids
Mnemonic
Imagine a 'See Through' (CT) scan that lets doctors see through your body to create a detailed map.
Conceptual Metaphor
A slice of bread (representing a cross-section of the body). The scan is like slicing the body into many thin layers for inspection.
Practice
Quiz
What does the 'CT' in CT scan stand for?