Podcast
Questions and Answers
Which imaging technique is commonly used to visualize bones?
Which imaging technique is commonly used to visualize bones?
- CT scan
- MRI
- Ultrasound
- Radiography (correct)
What type of radiation is used in radiography?
What type of radiation is used in radiography?
- Ultraviolet rays
- X-rays (correct)
- Gamma rays
- Infrared rays
What happens when X-rays interact with atoms?
What happens when X-rays interact with atoms?
- They cause ionization (correct)
- They produce heat
- They emit light
- They create sound waves
Which structures in the body absorb more X-rays and appear lighter on the image?
Which structures in the body absorb more X-rays and appear lighter on the image?
What are residual X-rays?
What are residual X-rays?
Which of the following best describes a computed tomography (CT) scan?
Which of the following best describes a computed tomography (CT) scan?
What is the purpose of the movable table in a CT scan?
What is the purpose of the movable table in a CT scan?
What role do detectors play in a CT scan?
What role do detectors play in a CT scan?
What is the purpose of injecting a contrast product, such as iodine, during a CT scan?
What is the purpose of injecting a contrast product, such as iodine, during a CT scan?
In what medical field is a CT scan commonly used to control the response to chemotherapy?
In what medical field is a CT scan commonly used to control the response to chemotherapy?
Flashcards
Radiography
Radiography
An imaging technique that uses X-rays to create images of the inside of the body.
X-rays
X-rays
A type of electromagnetic radiation with high energy that can pass through the body.
Ionization
Ionization
When X-rays interact with atoms, they knock electrons out of their orbits, creating charged particles.
Dense structures like bones
Dense structures like bones
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Residual X-rays
Residual X-rays
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Computed Tomography (CT) scan
Computed Tomography (CT) scan
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Movable table in a CT scan
Movable table in a CT scan
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Detectors in a CT scan
Detectors in a CT scan
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Contrast product in a CT scan
Contrast product in a CT scan
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CT scans in Cancerology
CT scans in Cancerology
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Study Notes
Radiography
- Radiography, commonly known as X-ray, is used to visualize bones.
- X-rays, a type of ionizing radiation, are used in radiography.
X-ray Interaction
- When X-rays interact with atoms, they are absorbed or scattered, resulting in a varying degree of attenuation.
Image Formation
- Dense structures in the body, such as bones, absorb more X-rays and appear lighter on the image.
- Residual X-rays, which are not absorbed, form the image on the detector.
Computed Tomography (CT) Scan
- A CT scan is a non-invasive imaging technique that uses X-rays to produce detailed cross-sectional images of the body.
CT Scan Components
- The movable table in a CT scan allows the patient to be positioned correctly and moved smoothly during the scan.
- Detectors in a CT scan convert X-rays into digital signals that are used to reconstruct the image.
Contrast Agents
- Injecting a contrast product, such as iodine, during a CT scan enhances the visibility of certain structures and improves image quality.
Clinical Applications
- CT scans are commonly used in oncology to control the response to chemotherapy and monitor tumor progression.
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Description
Test your knowledge about radiography and X-rays with this quiz! Learn about the medical imaging technique used to visualize bones and detect abnormalities in soft tissues. Understand the ionization process caused by X-rays and the potential risks associated with long exposure.
