Medical Imaging Systems – MCQs

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1. Which imaging technique uses X-rays to create cross-sectional images?





2. Which imaging system is most suitable for detecting soft tissue contrast?





3. Which principle is the basis of ultrasound imaging?





4. Which radioactive substance is commonly used in PET scans?





5. Which imaging modality provides the highest spatial resolution?





6. Which imaging system is free from ionizing radiation?





7. Which imaging technique is most commonly used for fetal imaging?





8. Which parameter determines image brightness in X-ray imaging?





9. Which imaging technique uses gadolinium-based contrast agents?





10. Which scan is most effective in detecting bone fractures?





11. What does CT stand for?





12. Which imaging technique detects metabolic activity in tissues?





13. Which component in an MRI scanner generates the magnetic field?





14. Which imaging method is most useful for brain tumor detection?





15. Which property of tissue determines ultrasound echo intensity?





16. Which scan is primarily used for cardiac perfusion studies?





17. Which imaging technique is fastest in emergency trauma cases?





18. What does DEXA scan measure?





19. Which radiation is used in X-ray imaging?





20. Which imaging technique uses Doppler effect?





21. Which scan is best for detecting pulmonary embolism?





22. Which MRI sequence highlights fluid as bright?





23. Which factor improves spatial resolution in CT imaging?





24. Which imaging method is best for detecting calcium deposits?





25. Which imaging technique provides functional as well as structural information?





26. What is the unit of absorbed radiation dose?





27. Which scan is most suitable for interventional radiology guidance?





28. Which contrast is commonly used in CT imaging?





29. Which parameter in MRI controls slice thickness?





30. Which imaging modality is best for soft tissue of the spinal cord?





31. Which scan uses collimators to detect gamma rays?





32. Which factor increases radiation dose in X-ray imaging?





33. Which imaging method is safest for pregnant women?





34. Which imaging system is most cost-effective and portable?





35. What is the primary disadvantage of MRI?





36. Which PET detector crystal is most commonly used?





37. Which scan is useful in detecting ischemic stroke within minutes?





38. Which imaging method can assess tissue elasticity?





39. Which radiation safety principle is followed in medical imaging?





40. Which imaging method uses time-of-flight principle?





41. Which technique is most effective for breast cancer screening?





42. Which artifact is common in ultrasound imaging?





43. Which scan uses attenuation correction to improve image quality?





44. Which imaging technique is preferred for liver lesions?





45. Which scan provides 3D reconstruction of anatomy?





46. Which imaging modality uses strong magnetic fields and radiofrequency pulses?





47. Which parameter reduces noise in CT images?





48. Which modality combines CT and PET in hybrid systems?





49. Which imaging system is best for musculoskeletal injuries?





50. Which contrast method enhances vascular imaging in ultrasound?





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