Terms Used In The Acoustic Output Tables - FujiFilm SonoSite Edge II Manual De Instrucciones

Terms used in the acoustic output tables

Table 1-1: Terms used in the acoustic output tables
Term Definition
α
Attenuation coefficient used for derating. Equal to 0.3 dB/cm/MHz
f Acoustic working frequency.
awf
I Attenuated pulse-average intensity.
pa,α
I Spatial-peak temporal-average intensity.
spta
I Attenuated spatial-peak temporal-average intensity.
spta,α
Mechanical index.
MI
P Output power.
P Bounded-square output power.
1x1
p Attenuated peak-rarefactional acoustic pressure.
r,α
p Peak-rarefactional acoustic pressure.
r
Pulse-intensity integral.
pii
Attenuated pulse-intensity integral.
pii,α
n Number of pulses per ultrasonic scan line.
pps
prr Pulse repetition rate.
srr Scan repetition rate.
TI Thermal index.
TIB Bone thermal index.
TIC Cranial-bone thermal index.
TIS Soft-tissue thermal index.
z Depth for TIB.
b
z Depth for mechanical index.
MI
z Depth for peak pulse-intensity integral.
pii
z Depth for peak attenuated pulse-intensity integral.
pii,α
92
2
.
Acoustic output tables