User's Manual

Table Of Contents
InnoSight Ultrasound System
Transducer Surface Temperature Rise 
2 enin
26
P6992-4, EN, 16/12/6
Display Guideline
Thermal Index (TI) consists of two indices: soft tissue (TIS) and bone (TIB) TIB is only displayed in non-
scanning modes, such as M-mode, PW mode and CW mode TIS is displayed in all scan modes The
index is continuously displayed over a range of 1 to 6 in increments of 1 Mechanical Index (MI) is
continuously displayed over a range of 1 to 19 in increments of 1
Display and Report in Different Modes
For 2D Mode
Display and report only MI and TIS
For Color Mode
Display and report only MI and TIS
For Doppler Mode
Display and report MI, TIS and TIB
Below is a simple guideline for the operator when TI exceeds one limit exposure time to 4
(6-TI)
minutes based
on the
‘National Council on Radiation Protection. Exposure Criteria for Medical Diagnostic Ultrasound: I.
Criteria Based on Thermal Mechanisms. Report No.113 1992’
Operator Control Features
The operator should be aware that certain operator controls may affect the acoustic output It is
recommended to use the default (or lowest) output power setting and compensate using Gain control to
acquire an image Other than the output power setting in the Soft Menu, which has the most direct impact
on the power the PRF (Pulse Repetition Frequency), image sector size, frame rate, depth, and focal position
also slightly affect the output power The default setting is normally around , occasionally 9, of the
allowable power, depending on the exam type
Transducer Surface Temperature Rise
The table below lists the measured surface temperature rise from ambient (23C  3C) of transducers used
on the system The temperatures were measured in accordance with EN 661-2-3 cl2111 and cl2113
with controls and settings positioned to give maximum temperatures
Test External use (°C) Non-external Use (°C)
C6-2 S4-2 L12-4 C9-4v
Simulated use 1 14 3 19
Still air 3 36 6 33
Tale 6Transducer surface temperature rise