Across
- 4. Region where particles are spread apart in a sound wave.
- 7. Generated by a transducer and are sent into the patient where they produce echoes at organ boundaries within tissues.
- 9. Height of a sound wave related to its strength or loudness.
- 10. Speed at which sound travels through a medium.
- 13. The number of sound wave cycles per second.
- 16. Distance between two consecutive compressions or rarefactions.
- 17. Area in a sound wave where particles are close together.
- 18. Material or substance through which sound must travel.
- 20. The return of part of the sound wave back to the transducer.
- 21. Resistance a medium provides to the transmission of sound waves.
- 23. Bending of a wave as it passes from one medium to another.
- 25. Technique to measure motion via frequency shifts.
- 26. The principle of converting energy by applying pressure to a crystal
Down
- 1. A structure with mixed or varied echogenicity.
- 2. Device that converts electrical energy to sound waves and vice versa.
- 3. The same echogenicity throughout a structure it will appear brighter.
- 5. Loss of sound energy as it travels through a medium.
- 6. The unit of frequency in cycles per second.
- 8. Particles that transmit sound energy in a medium.
- 11. Region that appears black on ultrasound
- 12. Type of wave where particle motion is parallel to wave propagation.
- 14. The reflected sound wave detected by the transducer.
- 15. The path or shape of sound as it travels from the transducer.
- 19. Having the same echogenicity as adjacent structures.
- 22. A mechanical wave that requires a medium to travel.
- 24. Producing fewer echoes than surrounding tissues appears darker on the image.