X-ray MCQs Radiology

By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 14, 2024

1. What does an X-ray image primarily show?
A) The temperature of internal organs
B) The density of internal structures
C) The chemical composition of tissues
D) The electrical activity of the heart

Answer: B) The density of internal structures


2. What material is commonly used in X-ray imaging to block X-rays and appear white on the image?
A) Air
B) Water
C) Bone
D) Muscle

Answer: C) Bone


3. Which of the following structures would appear darkest on an X-ray image?
A) Bone
B) Metal
C) Muscle
D) Air

Answer: D) Air


4. What type of X-ray image provides real-time visualization of internal structures?
A) Fluoroscopy
B) Computed Tomography
C) Mammography
D) Radiography

Answer: A) Fluoroscopy


5. What is the purpose of using a ‘contrast medium’ in X-ray imaging?
A) To increase image resolution
B) To improve the visibility of certain structures
C) To decrease radiation exposure
D) To speed up the imaging process

Answer: B) To improve the visibility of certain structures


6. Which X-ray imaging technique is most commonly used for breast cancer screening?
A) MRI
B) Ultrasound
C) Mammography
D) CT Scan

Answer: C) Mammography


7. In X-ray imaging, what is the role of a ‘grid’?
A) To increase the contrast of the image
B) To focus the X-ray beam
C) To reduce scattered radiation
D) To enhance image resolution

Answer: C) To reduce scattered radiation


8. What does the term ‘radiopacity’ mean in the context of X-ray imaging?
A) The ability of a substance to allow X-rays to pass through
B) The ability of a substance to block X-rays
C) The ability of a substance to absorb radiation
D) The speed at which an image is acquired

Answer: B) The ability of a substance to block X-rays


9. What type of X-ray image is typically used to assess bone fractures?
A) Chest X-ray
B) Bone X-ray
C) Dental X-ray
D) Abdominal X-ray

Answer: B) Bone X-ray


10. What is the primary purpose of ‘digital radiography’?
A) To use traditional film for imaging
B) To provide real-time imaging
C) To capture images electronically and improve processing
D) To use higher doses of radiation

Answer: C) To capture images electronically and improve processing


11. What does the term ‘density’ refer to in X-ray imaging?
A) The speed of the X-ray beam
B) The level of image contrast
C) The thickness of the imaged structure
D) The amount of radiation absorbed by the structure

Answer: D) The amount of radiation absorbed by the structure


12. Which X-ray technique uses ‘Bucky’ grids to reduce scatter radiation?
A) Conventional radiography
B) Digital radiography
C) Fluoroscopy
D) Computed tomography

Answer: A) Conventional radiography


13. What does ‘image contrast’ in X-ray imaging refer to?
A) The level of image detail
B) The difference in radiographic density between structures
C) The duration of the X-ray exposure
D) The type of imaging equipment used

Answer: B) The difference in radiographic density between structures


14. What is a common application of ‘chest X-ray’?
A) To evaluate bone density
B) To assess lung conditions
C) To visualize joint injuries
D) To measure body fat

Answer: B) To assess lung conditions


15. Which structure typically appears white on an X-ray image?
A) Air
B) Muscle
C) Bone
D) Fat

Answer: C) Bone


16. What does ‘film processing’ in X-ray imaging involve?
A) Capturing the X-ray image
B) Developing the X-ray film to produce a visible image
C) Enhancing the digital image
D) Analyzing the X-ray results

Answer: B) Developing the X-ray film to produce a visible image


17. What type of X-ray imaging is most commonly used for dental evaluations?
A) Panoramic X-ray
B) Chest X-ray
C) Abdominal X-ray
D) Mammography

Answer: A) Panoramic X-ray


18. In X-ray imaging, what does ‘radiographic resolution’ refer to?
A) The clarity of the image details
B) The amount of radiation exposure
C) The speed of the imaging process
D) The type of X-ray machine used

Answer: A) The clarity of the image details


19. What does ‘scatter radiation’ refer to in X-ray imaging?
A) Radiation that passes through the body without interaction
B) Radiation that is absorbed by the body
C) Radiation that is deflected from its original path
D) Radiation that enhances image quality

Answer: C) Radiation that is deflected from its original path


20. What is the main benefit of using ‘digital subtraction angiography’ (DSA)?
A) It provides high-resolution images of bones
B) It allows for the real-time imaging of blood vessels
C) It reduces the radiation dose
D) It captures static images of soft tissues

Answer: B) It allows for the real-time imaging of blood vessels


21. In X-ray imaging, what is the purpose of using ‘lead aprons’?
A) To enhance image quality
B) To protect parts of the body from unnecessary radiation
C) To focus the X-ray beam
D) To speed up the imaging process

Answer: B) To protect parts of the body from unnecessary radiation


22. What does ‘radiographic attenuation’ measure?
A) The amount of radiation that passes through a structure
B) The speed of image acquisition
C) The thickness of the X-ray film
D) The clarity of the X-ray image

Answer: A) The amount of radiation that passes through a structure


23. What is ‘computed radiography’ (CR)?
A) A method of using film to capture images
B) A system that uses digital imaging plates to capture X-ray images
C) A type of CT imaging
D) A technique for real-time imaging

Answer: B) A system that uses digital imaging plates to capture X-ray images


24. Which X-ray technique is commonly used to assess fractures in small animals?
A) Computed Tomography
B) Bone Densitometry
C) Digital Radiography
D) Conventional Radiography

Answer: D) Conventional Radiography


25. What does the term ‘radiolucent’ mean in X-ray imaging?
A) A substance that blocks X-rays
B) A substance that allows X-rays to pass through
C) A type of contrast medium
D) An image artifact

Answer: B) A substance that allows X-rays to pass through


26. What is the main advantage of using ‘digital X-ray systems’ over film-based systems?
A) Higher radiation dose
B) Faster image acquisition and processing
C) Higher equipment cost
D) Use of film development chemicals

Answer: B) Faster image acquisition and processing


27. What is ‘radiographic density’?
A) The amount of detail in the X-ray image
B) The thickness of the imaged structure
C) The degree to which X-rays are absorbed or transmitted
D) The clarity of the image

Answer: C) The degree to which X-rays are absorbed or transmitted


28. What type of X-ray image is typically used to evaluate the gastrointestinal tract?
A) Chest X-ray
B) Abdominal X-ray
C) Bone X-ray
D) Dental X-ray

Answer: B) Abdominal X-ray


29. Which X-ray technique involves injecting a contrast medium into blood vessels?
A) Fluoroscopy
B) Digital Radiography
C) Angiography
D) Mammography

Answer: C) Angiography


30. What does ‘image artifact’ refer to in X-ray imaging?
A) A feature that enhances the image quality
B) An error or distortion in the image
C) A type of contrast medium
D) A method of improving image resolution

Answer: B) An error or distortion in the image


31. Which structure typically appears gray on an X-ray image?
A) Air
B) Bone
C) Muscle
D) Metal

Answer: C) Muscle


32. What is the function of a ‘radiographic grid’?
A) To focus X-ray beams
B) To increase image contrast
C) To reduce scatter radiation
D) To speed up image acquisition

Answer: C) To reduce scatter radiation


33. What is the main disadvantage of traditional film-based X-ray imaging?
A) Lower image resolution
B) Longer processing time
C) Higher radiation dose
D) Higher cost of equipment

Answer: B) Longer processing time


34. In X-ray imaging, what does ‘dynamic imaging’ refer to?
A) Static images captured over time
B) Real-time imaging of moving structures
C) Enhanced image resolution
D) High contrast imaging

Answer: B) Real-time imaging of moving structures


35. What is ‘image magnification’ in X-ray imaging used for?
A) To increase the size of the imaging area
B) To make structures appear larger and more visible
C) To reduce the radiation dose
D) To decrease the image acquisition time

Answer: B) To make structures appear larger and more visible


36. What type of X-ray is commonly used to assess the spine and joints?
A) Fluoroscopy
B) CT Scan
C) Bone X-ray
D) Mammography

Answer: C) Bone X-ray


37. In X-ray imaging, what does ‘radiographic contrast’ help to distinguish?
A) Different types of tissues
B) The duration of the imaging process
C) The thickness of the X-ray film
D) The type of imaging equipment

Answer: A) Different types of tissues


38. What is a ‘film badge’ used for in X-ray imaging?
A) To record the amount of radiation exposure to the imaging technician
B) To enhance image resolution
C) To speed up image acquisition
D) To adjust image contrast

Answer: A) To record the amount of radiation exposure to the imaging technician


39. Which X-ray technique uses ‘computed tomography’ (CT) to provide detailed cross-sectional images?
A) Conventional X-ray
B) Digital Radiography
C) CT Scan
D) Fluoroscopy

Answer: C) CT Scan


40. What does ‘radiographic quality’ depend on?
A) The size of the X-ray machine
B) The amount of radiation used
C) The clarity and detail of the image
D) The cost of the imaging equipment

Answer: C) The clarity and detail of the image


41. What does ‘exposure control’ in X-ray imaging refer to?
A) The amount of time the patient is exposed to X-rays
B) The adjustment of the X-ray machine settings
C) The use of protective equipment
D) The enhancement of image contrast

Answer: B) The adjustment of the X-ray machine settings


42. Which type of X-ray image is used to diagnose fractures and joint injuries?
A) Digital X-ray
B) MRI
C) Ultrasound
D) CT Scan

Answer: A) Digital X-ray


43. What is the primary use of ‘fluoroscopy’ in radiology?
A) To capture static images of bones
B) To provide real-time imaging of internal structures
C) To assess soft tissue injuries
D) To visualize internal organs in detail

Answer: B) To provide real-time imaging of internal structures


44. In X-ray imaging, what does ‘radiographic attenuation’ measure?
A) The amount of radiation that is absorbed or scattered by a structure
B) The clarity of the X-ray image
C) The speed of image acquisition
D) The thickness of the X-ray film

Answer: A) The amount of radiation that is absorbed or scattered by a structure


45. What is the purpose of ‘digital subtraction’ in X-ray imaging?
A) To remove background structures for better visualization of specific areas
B) To increase the radiation dose
C) To enhance image resolution
D) To speed up the imaging process

Answer: A) To remove background structures for better visualization of specific areas


46. What does ‘radiographic detail’ refer to?
A) The amount of radiation used
B) The quality and clarity of the X-ray image
C) The duration of the imaging process
D) The type of contrast medium used

Answer: B) The quality and clarity of the X-ray image


47. What is the primary benefit of using ‘digital subtraction angiography’ (DSA)?
A) Ability to visualize blood vessels clearly
B) Reduced radiation exposure
C) Enhanced bone imaging
D) Faster image processing

Answer: A) Ability to visualize blood vessels clearly


48. What is the purpose of ‘radiographic collimation’?
A) To focus the X-ray beam on a specific area
B) To increase image contrast
C) To reduce scatter radiation
D) To enhance image resolution

Answer: A) To focus the X-ray beam on a specific area


49. What does ‘radiographic noise’ refer to?
A) Unwanted variations in the image
B) The quality of the X-ray machine
C) The amount of radiation used
D) The speed of image acquisition

Answer: A) Unwanted variations in the image


50. What is the typical use of ‘computed radiography’ (CR) systems in X-ray imaging?
A) To use traditional film
B) To capture digital images using imaging plates
C) To provide real-time imaging
D) To enhance image resolution

Answer: B) To capture digital images using imaging plates