IMG1002_ ANSWERKEY

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Across
  1. 4. Fluid-filled (typically anechoic with enhancement)
  2. 6. Particle motion in same direction as wave travel
  3. 7. Tissue-filled mass with internal echoes
  4. 10. Rectangular image format; superficial/vascular use
  5. 11. Detects and measures blood flow
  6. 15. Type of energy sound represents
  7. 18. Same echogenicity as reference tissue
  8. 19. Prefix meaning above/excessive
  9. 20. One cycle per second
  10. 21. Number of cycles per second; determines resolution vs depth
  11. 22. Produces strong echoes & appears bright
  12. 24. Particle motion perpendicular to wave direction
  13. 25. Lesion with both cystic and solid parts
  14. 26. Returning sound wave detected by transducer
  15. 28. Mixed/uneven echotexture
Down
  1. 1. Uniform echotexture
  2. 2. From Latin “sonus” (sound) + Greek “graphein” (to write)
  3. 3. Distance from one wave peak to the next
  4. 5. Device that converts electricity ↔ sound in ultrasound
  5. 8. Prefix meaning below/low
  6. 9. Sound above 20,000 Hz
  7. 12. Electric charge from stressed crystals
  8. 13. Typical transducer range 1.6–2.5 MHz
  9. 14. Wedge-shaped image format; cardiac use
  10. 16. High-pressure phase of sound wave
  11. 17. Brightness determined by echo strength
  12. 23. Time required to complete one cycle
  13. 27. Low-pressure phase of sound wave