Radiographic Imaging Techniques MCQs

Which of the following imaging techniques uses ionizing radiation to create images of the body?
- A) Ultrasound
- B) X-ray
- C) MRI
- D) CT scan
What is the primary purpose of a collimator in radiography?
- A) To increase radiation exposure
- B) To limit the area of exposure
- C) To enhance image resolution
- D) To reduce patient motion
Which imaging technique is most effective for visualizing soft tissues?
- A) X-ray
- B) MRI
- C) CT scan
- D) Fluoroscopy
What is the main advantage of using a computed tomography (CT) scan over traditional X-rays?
- A) Lower radiation dose
- B) Better cross-sectional imaging
- C) Faster image acquisition
- D) No need for contrast agents
In which imaging technique is contrast media often used to enhance visualization of blood vessels?
- A) Ultrasound
- B) Angiography
- C) MRI
- D) X-ray
Which of the following is a non-invasive imaging technique?
- A) X-ray
- B) Ultrasound
- C) CT scan
- D) MRI
What is the main purpose of fluoroscopy in medical imaging?
- A) To capture static images
- B) To visualize dynamic processes in real time
- C) To measure radiation dose
- D) To enhance image contrast
Which imaging modality uses strong magnetic fields and radio waves?
- A) X-ray
- B) MRI
- C) CT scan
- D) PET scan
What does the term “windowing” refer to in CT imaging?
- A) The angle of the X-ray beam
- B) Adjusting the brightness and contrast of the image
- C) The time taken for image acquisition
- D) The thickness of the slices
What type of radiation is primarily used in PET scans?
- A) Ultraviolet
- B) Positron emission
- C) Gamma rays
- D) X-rays
What is the primary role of a grid in radiographic imaging?
- A) To enhance image brightness
- B) To reduce scatter radiation
- C) To increase patient dose
- D) To magnify the image
In MRI, what is the purpose of the magnetic field?
- A) To generate X-rays
- B) To align hydrogen protons
- C) To capture images in real time
- D) To filter radiation
Which imaging technique is best for detecting fractures?
- A) Ultrasound
- B) X-ray
- C) MRI
- D) CT scan
What is the primary imaging modality for evaluating the brain?
- A) X-ray
- B) MRI
- C) Ultrasound
- D) CT scan
Which radiographic technique involves the injection of a contrast agent into the bloodstream?
- A) Angiography
- B) Fluoroscopy
- C) MRI
- D) Ultrasound
What is the main disadvantage of using X-rays for imaging?
- A) Exposure to ionizing radiation
- B) Limited availability
- C) High cost
- D) Inability to visualize soft tissues
Which imaging technique is commonly used to assess cardiac function?
- A) CT scan
- B) Echocardiography
- C) X-ray
- D) MRI
What type of images does ultrasound produce?
- A) X-ray images
- B) Real-time images based on sound waves
- C) Cross-sectional images
- D) Static images only
What is the primary purpose of a contrast agent in imaging?
- A) To increase radiation dose
- B) To enhance the visibility of specific tissues or structures
- C) To reduce exposure time
- D) To measure blood flow
Which imaging technique is best for soft tissue contrast?
- A) X-ray
- B) CT scan
- C) MRI
- D) PET scan
What is the term for the process of obtaining images in MRI?
- A) Magnetic resonance imaging
- B) X-ray imaging
- C) Fluoroscopy
- D) Computed tomography
Which imaging modality is often used for tumor detection and staging?
- A) CT scan
- B) X-ray
- C) Ultrasound
- D) MRI
What does the acronym “CT” stand for?
- A) Continuous Transfusion
- B) Computed Tomography
- C) Contrast Therapy
- D) Cardiac Testing
In which situation is ultrasound particularly useful?
- A) Monitoring fetal development
- B) Assessing bone fractures
- C) Detecting lung infections
- D) Visualizing brain tumors
What type of imaging uses radioactive tracers to visualize metabolic activity?
- A) CT scan
- B) X-ray
- C) PET scan
- D) Ultrasound
Which imaging modality is least affected by patient motion?
- A) X-ray
- B) MRI with motion correction
- C) CT scan
- D) Ultrasound
What is the main application of bone scans in radiology?
- A) Assessing soft tissue injury
- B) Detecting bone metastases
- C) Evaluating lung function
- D) Imaging the brain
Which imaging technique is primarily used for gastrointestinal tract evaluation?
- A) CT scan
- B) Fluoroscopy
- C) X-ray
- D) MRI
In what situation is a chest X-ray most commonly performed?
- A) To assess fractures
- B) To evaluate lung conditions
- C) To visualize soft tissues
- D) To detect heart disease
What is the primary use of interventional radiology?
- A) Diagnostic imaging
- B) Minimally invasive treatments
- C) Monitoring patient progress
- D) General imaging procedures

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