Samsung PT60A User Manual download pdf (Page 46)

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Operation Manual

 Other

 2D, Color, M, Doppler Modes (2D, Color, M-Mode, PW)

When a new imaging mode is selected, both the TI and the MI will revert to their default settings.

Each mode has a corresponding pulse repetition frequency and maximum intensity point. In

combined or simultaneous modes, the TI is the sum of the contribution from the modes enabled,

and the MI is the value for the focal zone of the mode with the largest de-rated intensity. If a mode

is turned o and then reselected, the system will return to the previously selected settings.

 Probes

Each probe model available has unique specications for the contact area, beam shape, and

center frequency. Settings are reset when you select a probe. Samsung Medison’s factory defaults

vary with probe, application and mode. Defaults that are below the FDA limits have been chosen

for intended use.

 Depth

An increase in the 2D-mode depth will automatically decrease the 2D-mode frame rate. This

would decrease the TI. The system may also automatically choose a deeper 2D-mode focal depth.

A change of focal depth may change the MI. The MI displayed is that of the zone with the largest

peak intensity.

 Application

Acoustic output defaults are set when you select an application. Samsung Medison’s factory

defaults vary with probe, application, and mode. Defaults that are below the FDA limits have been

chosen for intended use.

 Related Guidance Documents

For more information about ultrasonic bioeects and related topics, refer to the following:

X

Medical Ultrasound Safety (AIUM, 2009). (A copy of this AIUM Clinical User Education Brochure

is shipped with each system.)

X

AIUM Consensus Report on Potential Bioeects of Diagnostic Ultrasound: Executive Summary,

J. Ultrasound in Medicine, 2008, Vol. 27, Num. 4.

X

WFUMB. Symposium on Safety of Ultrasound in Medicine: Conclusions and Recommendations

on Thermal and Non-thermal Mechanisms for Biological Eects. Ultrasound in Med. & Biol;

1998, 24: Supplement 1.

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Samsung PT60A User Manual Page 46