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What imaging modality is most effective for detecting early-stage bone infections?
A) Ultrasound
B) X-ray
C) CT Scan
✔✔D) MRI
Which contrast agent is commonly used in MRI scans?
A) Iodine
B) Barium
C) Carbon dioxide
✔✔D) Gadolinium
In fluoroscopy, what is the main purpose of an image intensifier?
A) To decrease exposure time
B) To remove scatter radiation
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,C) To increase patient radiation dose
✔✔D) To enhance image brightness
Which of the following projections is best for assessing the odontoid process?
A) AP Pelvis
B) Waters view
C) Oblique Lumbar
✔✔D) Open-mouth cervical spine
What is the primary advantage of digital radiography over conventional film-based radiography?
A) Increased processing time
B) Decreased image resolution
C) No need for collimation
✔✔D) Reduced radiation dose
Which of the following conditions would require the use of a double-contrast barium enema?
A) Gallstones
B) Kidney stones
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,C) Pneumonia
✔✔D) Polyps or colorectal cancer screening
Which imaging modality is best for detecting gallbladder stones?
A) CT
C) MRI
D) Nuclear Medicine
✔✔B) Ultrasound
What is the primary purpose of a lateral decubitus abdominal X-ray?
A) Assess kidney stones
B) Detect pneumonia
D) Evaluate the liver
✔✔C) Identify free air or fluid levels
Which structure is best visualized using a T2-weighted MRI sequence?
A) Bone cortex
C) Air-filled spaces
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, D) Metal implants
✔✔B) Soft tissue and fluid-filled structures
What is the most common reason for using a non-contrast CT scan of the brain?
A) Tumor detection
C) Evaluation of soft tissue injuries
D) Detection of multiple sclerosis
✔✔B) Acute stroke assessment
Which patient position is preferred for an esophagram to evaluate reflux?
A) Supine
C) Prone
D) Upright
✔✔B) Trendelenburg
Which of the following is a contraindication for MRI?
A) Dental fillings
C) Joint replacement
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