This product complies with regulatory requirements of the following European
Directive 93/42/EEC concerning medical devices
This manual is a reference for the LOGIQ 7/LOGIQ 7 Pro. It applies to all versions of the
SW R4.2.0/R4.2.0Pro and later software for the LOGIQ 7/LOGIQ 7 Pro ultrasound
systems.
GE Medical Systems
GE Medical Systems: Telex 3797371
P.O. Box 414, Milwaukee, Wisconsin 53201 U.S.A.
(Asia, Pacific, Latin America, North America)
GE Medical Systems
283, rue de la Miniere,78533 Buc Cedex
France
Title PageRev. 2Chapter 2Rev. 2
Revision HistoryRev. 2Chapter 3Rev. 2
Table of ContentsRev. 2IndexRev. 2
Chapter 1Rev. 2
NUMBERPAGE NUMBER
REVISION
NUMBER
Please verify that you are using the latest revision of this document.
Information pertaining to this document is maintained on GPC (GE
Medical Systems Global Product Configuration). If you need to know the
latest revision, contact your distributor, local GE Sales Representative or
in the USA call the GE Ultrasound Clinical Answer Center at
1 800 682 5327 or 1 262 524 5698.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manuali-1
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i-2LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
Chapter 1 — Acoustic Output
Bioeffects
Concerns Surrounding the Use of Diagnostic Ultrasound - - - - - - - - - 1-2
TOC-2LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
Chapter 1
Acoustic Output
Provides Acoustic Output information and tables, as
well as possible bioeffects and prudent use.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-1
Direction 5116269-100 Rev. 2
Acoustic Output
Bioeffects
Concerns Surrounding the Use of Diagnostic Ultrasound
During a diagnostic ultrasound examination, high frequency
sound penetrates and interacts with tissue in and around the
area of anatomy to be imaged. Only a small portion of this sound
energy is reflected back to the probe for use in constructing the
image while the remainder is dissipated within the tissue. The
interaction of sound energy with tissue at sufficiently high levels
can produce biological effects (aka bioeffects) of either a
mechanical or thermal nature. Although the generation of
bioeffect is intentional with therapeutic ultrasound, it is generally
undesired in diagnostic applications and may be harmful in
some conditions.
NOTE:The American Institute of Ultrasound in Medicine has published
a document entitled "Medical Ultrasound Safety". This three
part document covers Bioeffects and Biophysics, Prudent Use
and Implementing ALARA.
Ultrasound users should read the AIUM to become more familiar
with Ultrasound safety.
NOTE:Only for U.S.A. : A copy of this document is included as part of
the documentation package (Document 2163920-100).
To contact the AIUM concerning their publications:
•In the USA, by telephone at 1-800-638-5352.
•To write them, use the following address:
AIUM
14750 Sweitzer Lane
Suite 100
Laurel, MD, USA 20707-5906
1-2LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
Maximum output summary
The following tables list the typical maimum acoustic output
levels achievalbe with LOGIQ 7/LOGIQ 7 Pro for all probes and
operational modes. It is intended that this is information be
useful in making ALARA decisions and selecting the most
appropriate probe for the application . In ac co rd an ce with US
FDA Guidelines, the overall maximum acoustic SPTA intensity
for LOGIQ 7/LOGIQ 7 Pro is limited to 720 mW/cm
limited to 1.9. Modes for which TI does not exceed 0.1 are
indicated by <0.1.
•The accuracy of acoustic output table of this manual : +0%/-
POutput Power / Time average acoustic power at the source
α
P
1
i
p
r
p
rα
PRFprrPulse Repetition Rate / Pulse repetition frequency
TITIThermal Index / (same)
TIBTIBBone Thermal Index / (same)
TICTICCranial-Bone Thermal Index / (same)
TISTISSoft-Tissue Thermal Index / (same)
PDt
x
-12,y-12
d
X, Y-12 dB Output Beam Dimensions / (same)
ZZDistance from the Source to a Specified Point / (same)
Z
sp
Z
bp
Z
sp
Z
b
Z
bp
Z
s
-12db Output Beam Area / Active aperture area
Normalizing Coefficient
Equivalent Aperture Diameter / (same)
Pulse Beam Width / Beam diameter at –6 dB
Equivalent Beam Diameter
Acoustic Working Frequency / Center frequency
Pulse-Average Intensity
Attenuated Pulse-Average Intensity
Pulse-Intensity Integral
Attenuated Pulse-Intensity Integral
Attenuated Output Power / Time average acoustic power derated to depth z
Bounded Output Power / Power emitted from the central 1cm of aperture
Pulse Pressure Squared Integral / Pulse intensity integral
Peak-Rarefactional Acoustic Pressure / (same)
Attenuated Peak-Rarefactional Acoustic Pressure / (same)
Pulse Duration / (same)
Depth for TIB / Depth at which the relevant index is maximum
Break-Point Depth / (same)
Depth for TIS / Depth at whcih the relevant index is maximum
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-5
Direction 5116269-100 Rev. 2
)
Frequency (MHz)T4.0T4.0---T4.0
Image Depth (cm)24.010.0---10.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)T4.0T4.0-#T4.0T4.0
Image Depth (cm)24.010.0-#24.024.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-7
Direction 5116269-100 Rev. 2
)
Frequency (MHz)D2.5D2.5D2.5-D2.5D2.5
Image Depth (cm)3.54.83.5-3.54.8
Vel Scale (kHz)1.804.901.1-1.074.90
PenetOnOnOn-OnOn
ROI60deg5deg---5deg
Operating Control
Conditions
PS141416.0-1614
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)D2.5T4.0D2.5-D2.5D2.5
Image Depth (cm)3.510.02.2-2.22.2
Vel Scale (kHz)0.64-1.23-1.231.23
SV3-6-66
Peneton-on-onon
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-9
Direction 5116269-100 Rev. 2
)
Frequency (MHz)T5.0#---T4.0
Image Depth (cm)30.0#---8.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)T5.0#-#T5.0T5.0
Image Depth (cm)30.0#-#30.030.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-11
Direction 5116269-100 Rev. 2
)
Frequency (MHz)D3.3#-#D3.3D2.0
Image Depth (cm)4.8#-#4.84.8
Vel Scale (kHz)1.80#-#1.237.69
PenetOff#-#OffOn
ROI70deg#-#-5deg
Operating Control
Conditions
PS12#-#1612
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)D3.3#-#D2.0#
Image Depth (cm)4.8#-#3.5#
Vel Scale (kHz)0.64--#1.23#
SV1--#4#
PenetOff--#On#
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-13
Direction 5116269-100 Rev. 2
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)T5.0#---T4.0
Image Depth (cm)30.0#---8.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)T5.0#-##T5.0
Image Depth (cm)30.0#-##30.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-17
Direction 5116269-100 Rev. 2
)
Frequency (MHz)D3.3#-#D3.3D2.0
Image Depth (cm)4.8#-#4.84.8
Vel Scale (kHz)1.80#-#1.237.69
PenetOff#-#OffOn
ROI70deg#-#-5deg
Operating Control
Conditions
PS12#-#1612
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)D3.3#-#D2.0D2.0
Image Depth (cm)4.8#-#3.53.5
Vel Scale (kHz)0.64--#1.231.23
SV1--#44
PenetOff--#OnOn
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-19
Direction 5116269-100 Rev. 2
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
1-20LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
3.5CS Probe (continued)
Tab le 1-19: Transducer Mode: 3.5CS Operating Mode: B-Flow
Acoustic Output Data
Index LabelMI
scan
TISTIB
non-scan
Aaprt<Aaprt>1
TIC
nonscan
Global Maximum: Index Value1.7<1-<11.61.1
IECFDAUnits
pra p
PW
min of [P
(zs, I
α
(MPa)2.8
r.3
(mW)#-50.181.3
.3(Z1),ITA.3
ta,α(zs
o
)] [(W
(z1)])#
zs z1(cm)#
zbp zbp(cm)#
zb zsp(cm)3.4
Assoc Acoustic Paramete
zat max. Ipi,αz
sp
(cm)4.5
deq(zb) deq(zsp) (cm)0.7
ƒ
awf
Dim of A
t
d
aprt
f
c
(MHz)2.7#-#2.02.7
X(cm)#- #1.42.0
Y(cm)
PD(µsec)1.9
#- #1.31.3
prrPRF (Hz)2285.2
pr at max. Ipi pr@PII
deq at max. Ipi deq@PII
Other infromation
Focal LengthFL
I
at max. MII
pa,α
PA.3
(MPa)3.9
max
(cm)0.7
max
(cm)#- #4.5
X
FL
(cm)#- #6.6
Y
2
@MI
max
(W/cm
282.4
)
Frequency (MHz)BF3.3#-#D2.0BF3.3
Image Depth (cm)30.0#-#3.55.0
Vel Scale (kHz)-#-#1.23SV-#-#4Penet-#-#On-
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-21
Direction 5116269-100 Rev. 2
)
Frequency (MHz)4.04.0---4.0
Image Depth (cm)24.015.0---15.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
)
Frequency (MHz)4.04.0#-#4.0
Image Depth (cm)24.015.0#-#24.0
Operating Control
Conditions
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual1-23
Direction 5116269-100 Rev. 2
)
Frequency (MHz)D4.0D4.0-#D4.0D4.0
Image Depth (cm)3.32.1-#3.32.1
Vel Scale (kHz)1.808.53-#2.138.53
PenetOnOn-#OnOn
ROI60deg10deg-#-10deg
Operating Control
Conditions
PS1414-#1614
NOTE:
a. This index is not required for this operation mode; see section 4.1.3.1 of the
Output Display Standard(NEMA UD-3)
b. This probe 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 are reported for this operating condition since the global maximum
index value is not reported for the reason listed.
1-24LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
Direction 5116269-100 Rev. 2
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