Podcast
Questions and Answers
Which term describes a substance that does not absorb radiation and appears white or light grey on an X-ray?
Which term describes a substance that does not absorb radiation and appears white or light grey on an X-ray?
- Radiopaque (correct)
- Radiolucent
- Radioactive
- Contrast medium
Radiography is solely used for the treatment of diseases such as cancer.
Radiography is solely used for the treatment of diseases such as cancer.
False (B)
What type of medium is often used to enhance the visibility of organs or tissues in radiography?
What type of medium is often used to enhance the visibility of organs or tissues in radiography?
contrast medium
The commonest diagnostic X-ray examination is the chest ______.
The commonest diagnostic X-ray examination is the chest ______.
Why is it important for a patient to hold their breath during a chest X-ray?
Why is it important for a patient to hold their breath during a chest X-ray?
Serial chest X-rays are performed only once to diagnose a condition.
Serial chest X-rays are performed only once to diagnose a condition.
What is the name of the technician who takes x-rays?
What is the name of the technician who takes x-rays?
A frontal chest X-ray is also known as a(n) ______ view.
A frontal chest X-ray is also known as a(n) ______ view.
What is the primary purpose of using Computed Tomography (CT)?
What is the primary purpose of using Computed Tomography (CT)?
CT scanners can only produce one cross-sectional image at a time.
CT scanners can only produce one cross-sectional image at a time.
Name one application of CT scanning mentioned in the text.
Name one application of CT scanning mentioned in the text.
CT scanning can provide accurate guidance for ______ procedures, such as biopsies.
CT scanning can provide accurate guidance for ______ procedures, such as biopsies.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Why are lungs radiolucent?
Why are lungs radiolucent?
An enema involves injecting a liquid contrast medium directly into a vein.
An enema involves injecting a liquid contrast medium directly into a vein.
What is the advantage of using thinner slices in CT scanning?
What is the advantage of using thinner slices in CT scanning?
Removing fluid from the site of an injury or infection is a type of ______.
Removing fluid from the site of an injury or infection is a type of ______.
Match the following anatomical structures with their typical radiographic appearance:
Match the following anatomical structures with their typical radiographic appearance:
A doctor orders radiology for a patient. Which of the following is within the scope of radiology?
A doctor orders radiology for a patient. Which of the following is within the scope of radiology?
If a patient is asked to stand sideways during a chest X-ray, it is to obtain an anteroposterior view.
If a patient is asked to stand sideways during a chest X-ray, it is to obtain an anteroposterior view.
Flashcards
Radiography
Radiography
Exposing a body part to radiation to image internal organs.
Radiopaque
Radiopaque
Organs that do not absorb radiation and appear light on X-rays.
Radiolucent
Radiolucent
Tissue that absorbs radiation and appears dark on X-rays.
Contrast Medium
Contrast Medium
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Radiology
Radiology
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Chest X-ray
Chest X-ray
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Blurred X-ray
Blurred X-ray
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Serial Chest X-rays
Serial Chest X-rays
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Computed Tomography (CT)
Computed Tomography (CT)
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CT Slices
CT Slices
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Study Notes
- Radiography uses small doses of radiation to image internal organs
Radiography
- Organs with high density, like ribs and spine, are radiopaque and appear white/light grey.
- Lung tissue is radiolucent and appears dark.
- Contrast medium (barium/iodine) can be swallowed, given as an enema, or injected to highlight organs/tissues.
- Radiology is using radiation to diagnose and treat diseases, including cancer.
X-ray Examination
- Chest X-rays are common, typically using a frontal (anteroposterior) view.
- Patient stands facing the photographic plate, chest pressed against it, hands on hips, elbows forward.
- The radiographer instructs the patient to hold still, inhale deeply, and hold their breath to avoid a blurred image.
- Lateral view involves standing sideways with arms raised.
- Serial chest X-rays are repeated to track changes over time.
Computed Tomography (CT)
- CT scanners use a rotating X-ray source to create cross-sectional images (slices).
- Modern CT scanners can take multiple slices simultaneously, with each slice being very thin (less than one millimetre).
- CT scans are used for:
- Diagnosing muscle and bone disorders.
- Locating tumors, infections, and blood clots.
- Monitoring the progress of malignant diseases and response to therapy.
- Guiding interventional procedures (biopsies, drainage).
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