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CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C$17.99
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CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C
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Course
CT REGISTRY
Institution
CT REGISTRY
CT TEST REVIEW (TEST Q'S AND A'S FOR CT REGISTRY PREP. THIS IS FROM THE BOOK "COMPUTED TOMOGRAPHY FOR TECHNOLOGISTS: EXAM REVIEW" BY LOIS E ROMANS. PUBLISHED BY WOLTERS KLUWER, LIPPINCOTT WILLIAMS AND WILKINS.) QUESTIONS & ANSWERS RATED 100% C PRACTICE QUESTIONS AND ANSWERS
CT REGISTRY REVIEW IMAGING PROCEDURES | Questions with 100% Correct Answers |
Updated 2024 | Guaranteed A+ QUESTIONS AND ANSWERS
1. Which of the following factors primarily affects spatial resolution in a CT
image?
● A) Slice thickness
● B) Patient positioning
● C) Gantry tilt
● D) Tube voltage (kVp)
Answer: A) Slice thickness
Explanation: Spatial resolution in CT imaging is significantly affected by slice thickness.
Thinner slices provide better spatial resolution by capturing more detail in the z-axis.
2. What is the primary advantage of using helical (spiral) CT scanning over
conventional CT scanning?
● A) Improved image contrast
● B) Reduced radiation dose
● C) Faster scan times and ability to acquire images during a single breath-hold
● D) Increased slice thickness
Answer: C) Faster scan times and ability to acquire images during a single breath-hold
Explanation: Helical CT scanning allows for continuous data acquisition while the patient
moves through the gantry, enabling faster scan times and reducing motion artifacts, which is
particularly beneficial for thoracic and abdominal imaging.
3. Which artifact is commonly associated with metal implants in CT
imaging?
● A) Ring artifact
● B) Beam hardening artifact
● C) Motion artifact
● D) Partial volume artifact
Answer: B) Beam hardening artifact
Explanation: Metal implants can cause beam hardening artifacts, which appear as streaks or
dark bands on the image. This occurs because the metal attenuates the X-ray beam more than
the surrounding tissue.
4. What is the purpose of using a contrast agent in CT imaging?
● A) To reduce patient dose
● B) To increase spatial resolution
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