SPI Ultrasound Physics TEST COMPILATION BUNDLE

While using a linear sequential array transducer during a color Doppler exam, the shape of the grayscale image is most often _______, Whereas the shape of the color Doppler portion of the image is _______. A. rectangular, parallelogram B. rectangular, sector C. sector, trapezoid D. square, rec...

Length Correct Answer: mm, cm, inches, feet distance, circumference *length of a circles border" Area Correct Answer: cm squared, ft squared cm2, ft2 Volume Correct Answer: cm cubed, ft cubed cm3, ft3 Multipy by that number Correct Answer: increase by a factor of___ means Divide ...

SPI Ultrasound Physics- Questions Practice Exam

When will the Doppler shift be the highest? A.when the beam is parallel to the direction of flow B.when the beam is at a 45 degree angle to flow C.when the beam is perpendicular to the direction of flow D. Doppler shift is unrelated to beam angle Correct Answer: A.when the beam is parallel to t...

Meaning of Anechoic? Correct Answer: Dark, less echos. Meaning of Echogenic? Correct Answer: Full of echoes. Meaning of Hyperechoic? Correct Answer: More echoes than adjacent tissue. Meaning of Hypoechoic? Correct Answer: Less Echoes than adjacent tissue. Meaning of Isoechoic? Correc...

What is frequency determined by? Correct Answer: The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies Correct Answer: Lower What is the reciprocal of frequency and what is the symbol Correct Answer: Period, ...

True or False? Focused sound beams are considered less likely to create bioeffects because the beams will strike fewer gas bubbles that could potentially cavitate. Correct Answer: True. Small gas bubbles, or gaseous nuclei in tissues, serve as sites of cavitation. Certain studies of bioeffects a...

If the output power setting is at 50% and this indicates 0dB, increasing the power by: Correct Answer: 3dB will increase the power output by a factor of 2 An increase in power of 3dB indicates an increase of 2X the original power. Every 3dB that the power increases will double the power output. ...

What is the relationship between wavelength and frequency? Correct Answer: Inversely related. As one increase the other decrease The rate at which a sound wave travels through a medium Correct Answer: Propagation Speed Propagation Speed is reported in what units? Correct Answer: -meters per...

Which x-ray interaction is the most likely to occur in high atomic number matter? correct answer: Photoelectric absorption Which x-ray interaction with matter has probability occurrence if the x-ray is in the 10-60 KeV range? correct answer: Photoelectric absorption Which x-ray interaction w...

X-ray interaction with matter produces the whites in the image: CORRECT ANSWERS: Photoelectric absorption X-ray interaction causing "fog" in an image: CORRECT ANSWERS: Compton scatter X-ray interaction occurs at high kVp in the diagnostic range: CORRECT ANSWERS: Compton scatter X-ray i...