Happy Ultrasound Physics Quiz

ultrasound physics-4

Question #1: Which of the following is not user-adjustable?
frequencypowergaincompressionecho arrival time

Question #2: Which control would you adjust to alter the dynamic range of the displayed echoes?
compressiontransmit powerscanning depthtime gain compensationfocusing

Question #3: What do you do when you want to decrease a very bright echoes on the display?
adjusting rejectionadjusting TGCadjusting enhancementadjusting frame averagingadjusting frequency

Question #4: If you increase PRF and leave all other controls unchanged, what will happen?
lateral resolution will will improveframe rate will increaseframe rate will decreaseaxial resolution will improvefrequency will increase

Question #5: Pulsing of the transmitted sound wave is necessary for real-time imaging because:
the transducer becomes too hot to handle if continuous sound waves are emittedthe crystal in the transducer will break under the stress of continuous emissionsthe depth of the interface from which the echo originated can be determinedlateral resolution is improved by pulsed transmissiontemporal resolution is improved by pulsed transmission