SPI 試験問題を無料オンラインアクセス

Which characteristic of ultrasound transmission is directly proportional to an increase in frequency?

• A.Wavelength
• B.Pulse duration
• C.Attenuation
• D.Penetration

Which adjustment would reduce the noise in the Doppler waveform in this image?

• A.Increasing sweep speed
• B.Decreasing velocity scale
• C.Decreasing Doppler gain
• D.Increasing the gate size

What is the primary interaction that occurs when sound waves encounter a smooth, flat surface?

• A.Diffraction
• B.Reflection
• C.Attenuation
• D.Interference

Which situation occurs when the incident angle of a sound beam is adjusted to be perpendicular to a soft tissue interface?

• A.Refraction
• B.Reflection
• C.Cavitation
• D.Range ambiguity

Which factor affects temporal resolution?

• A.Display depth
• B.Time gain compensation
• C.Overall gain
• D.Log compression