Siemens Acuson S3000 - Page 474

Appendix F Acoustic Output Reference
F - 32 Instructions for Use
Acoustic Output Reporting Table — Track 3, FDA 510(k) and IEC 60601-2-37
(Per transducer/mode that exceeds MI or TI value of 1.0)
Transducer model: 18L6 HD Operating mode: M-Mode
MI
TIS
TIB
TIC
Index Label
Scan
Non-scan
Non-scan
A
aprt
≤1
A
aprt
>1
Maximum Value
1.50
-
0.14
-
0.26
0.14
Associated Acoustic Parameters
FDA
IEC
Units
P
r.3
p
ra
(MPa)
3.97
W
o
P
(mW)
-
4.68
2.87
4.68
min of [W
.3
(z
1
),
I
TA.3
(z
1
)]
Min. of [P
α
(z
s
),
I
ta.α
(z
s
)]
(mW)
-
z
1
z
s
(cm)
-
z
bp
z
bp
(cm)
-
z
sp
z
b
(cm)
1.60
z@PII
.3max
z @ max. I
pi,α
(cm)
1.20
d
eq
(z
sp
)
d
eq
(z
b
)
(cm)
0.12
f
c
f
awf
(MHz)
6.97
-
6.48
-
6.78
6.48
Dim. of A
aprt
X (cm)
-
1.38
-
1.08
1.38
Y (cm)
-
0.40
-
0.40
0.40
Other Information
PD t
d
(µsec)
0.27
PRF
prr
(Hz)
600.00
P
r
@ PII
max
P
r
@ max. I
pi
(MPa)
4.78
d
eq
@ PII
max
d
eq
@ max. I
pi
(cm)
3.70
Focal Length
FLx
(cm)
-
3.00
-
3.00
FLy
(cm)
-
1.80
-
1.80
I
pa.3
@ MI
max
I
pa, α
@ max. MI
(W/cm
2
)
603.46
Operator
Control
Frequency (MHz)
8.00
-
8.00
-
8.00
8.00
Focus (cm)
1.50
-
3.00
-
2.00
3.00
Gate Size (cm)
1.00
-
1.00
-
1.00
1.00
Sample Rate (Hz)
600.00
-
600
-
600
600
a This Index is not relevant to this operating mode.
b This transducer is not intended for transcranial or neonatal cephalic uses.
c This formulation for TIS is less than that for an alternate formulation in this mode.
# No data is provided for this operation condition since the maximum index value is not reported for the reason listed.