Diagnostic Medical Sonography

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Across
  1. 6. minimum distance between two reflectors along the ultrasound beam direction
  2. 10. Lower, away from the head
  3. 13. towards the back
  4. 17. Doppler scan that measures blood flow by attributing color to different velocities of movement
  5. 18. Minimum distance between two reflectors perpendicular to the ultrasound beam direction.
  6. 19. A transducer that has a motor inside.
  7. 21. toward the middle or center
  8. 23. Gel used in an ultrasound scan functions as the medium through which sound energy is transmitted between the transducer and the patients skin.
  9. 24. Imaging error that occurs in color flow Doppler and pulsed wave Doppler scans sampling rate is insufficient to record direction and velocity.
  10. 25. The tendency for ultrasound waves to decrease as they travel through tissues.
  11. 26. an imaging technique that focuses on the different heights of amplitude spikes
Down
  1. 1. Away from the point of origin or trunk.
  2. 2. Toward the side
  3. 3. the ability for sound waves to travel without return echoes because an anechoic space is full of fluid, creating a black space in the sonogram
  4. 4. in front
  5. 5. area in which sound waves encounter a dense structure, such as a tumor or fetus, and all waves are reflected
  6. 7. toward the point of origin or trunk
  7. 8. early ultrasound modality that shows the time-motion display of the ultrasound wave; displayed as a single scan line, not a visual image
  8. 9. Am imaging technique that focuses on the brightness of the echo, not the amplitude spikes (such as in a typical 2D ultrasound)
  9. 11. Highly sensitive Doppler technique that detects moving matter.
  10. 12. procedure named after physicist Christan Doppler in which sound waves bounce off circulating red cells to measure blood flow;often used to detect the heartbeat of a fetus
  11. 14. the ultrasound beams enter the body from the lateral (right or left) direction
  12. 15. structures that return greater echoes of sound waves and appear bright white on a sonogram
  13. 16. structures that return weaker echoes of sound waves and appear gray or black on a sonogram
  14. 20. body chamber without echoes; fluid-filled structures that appear black on the sonogram
  15. 22. change in frequency as the transducer moves away from the source of the sound echoes.