Ultrasound Physics Spi Exam Questions (120 Terms) With Verified Definitions Updated 2024

the AIUM and ACR recommend for accreditation purposes that system sensitivity and penetration, image uniformity, and electrical and mechanical safety inspection should be inspected or tested... a- monthly b- quarterly c- semi annually d- none of the above {Ans: c}if the attenuation for a 1MHz beam traveling through 10cm of muscle is 12dB, what would the attenuation be for a 10MHz beam? a- 6dB half as much b- 12dB unchanged c- 24dB twice as much d- 60dB five times as much {Ans: d... Total atten dB=(atten co dB/cm)×(distance cm)}no independently confirmed significant bioeffects in mammalian tissues have been reported below.... a- 300 mW/cm² SPTA b- 200 mW/cm² SPTA c- 100 mW/cm² SPTA {Ans: c}as a longitudinal sound wave passes through tissue, the area of tissue with an increase in mass density is referred to as... a- convergent zone b- divergent zone c- compression d- rarefaction {Ans: c}tissue doppler imaging is most frequently used in... a- msk b- echo c- carotid duplex d- gi {Ans: b}doppler and flow phantoms are useful to test for... a- spectral velocity calibration b- sample gate location matches vessel location c- penetration of spectral and color flow information d- all of