Safety
86 EchoNous Bladder & Vein User Guide
I
SPTA.3
Derated spatial peak, temporal average intensity (milliwatts/cm
2
)
TI Thermal index
MI Mechanical index
I
PA.3
@MI
max
Derated spatial-peak pulse-average intensity (watts/cm
2
)
Uncertainties are the cumulative effect of measurement uncertainties.
EchoNous Vein
Probe
(fundamental)
Output
0.961 TIS 0.0088 0.411 69.2
EchoNous Vein
Probe
(fundamental)
Uncertainties
±10.3% ±10.5% ±5.2% ±10.5%
EchoNous Vein
Probe (THI)
Output
4.27 TIS 0.0271 0.67 102.29
EchoNous Vein
Probe (THI)
Uncertainties
±10.5% ±10.6% ±5.3% ±10.4%
TABLE 4. B-mode acoustic output and uncertainties (Continued)
I
SPTA.3
[mW/
cm
2
] TI type TI Value MI
I
PA.3
@MI
max
[W/
cm
2
]