tomography
tomography — noun
1. a medical imaging method that uses X-rays to photograph very thin slices of the
a medical imaging method that uses X-rays to photograph very thin slices of the body and then combines them into a detailed three-dimensional picture.
The doctor ordered a tomography scan of Feng's chest to look for signs of infection.
tomography scan of [body part]
After Manuela's fall, tomography showed that her knee bone had a small crack.
Tomography creates clear pictures of thin body sections using X-ray technology.
The hospital's new tomography machine can scan a patient's whole body in under a minute.
文法句型
tomography of [body part]
tomography scan
a tomography of [body part]
用法筆記
Frequently used as a modifier: 'tomography scan', 'tomography machine', 'tomography image'. When countable, it usually refers to a specific imaging procedure ('a tomography of the liver').
2. a broad technique that sends energy waves (such as X-rays, sound waves, or radio
a broad technique that sends energy waves (such as X-rays, sound waves, or radio waves) through any solid object and builds a three-dimensional view of its internal structure by measuring how the waves behave as they pass through.
Geologists use tomography to study rock layers deep below the earth's surface.
applied to non-medical objects
Selim's engineering team used tomography to find cracks inside a large metal bridge.
Unlike a simple X-ray, tomography builds a full 3D model of an object's hidden parts.
Archaeologists use tomography to look inside ancient stone boxes without opening them.
Yael's research team uses sound-wave tomography to examine the walls of old buildings.
- imaging
a more general term covering all methods of creating internal pictures, not limited to wave-based slice techniques
- scanning
less formal and broader; can refer to any method of systematically examining something
- radiography
refers only to methods using radiation (X-rays or gamma rays), not to sound-wave or other techniques
文法句型
tomography of [solid object]
tomography using [energy type]
用法筆記
This broader sense covers any solid object (not just the body) and any type of energy wave. It is the general scientific principle; sense 1 covers the specific medical X-ray application.