5-104 Image Optimization
Lesion
Description
It is used to distinguish elastography data of the different lesion region.
Operations
Tap [Lesion] on the touch screen to adjust.
5.15 Stress Echo
Stress Echo is an option, only the probes support stress echo function under the cardiac mode.
CAUTION:
Stress echo data are provided for reference only, not for confirming
diagnoses.
5.15.1
Overview
The Stress Echo feature allows you to capture and review cardiac loops for multiple-phase
(multiple-stage) Stress Echo protocols.
Stress Echo data consists of Stress Echo loops, wall motion scores, and all other information pertaining
to the Stress Echo portion of a patient examination.
A loop is a clip that displays the motion of an entire heart cycle, or from the beginning systole to the end
systole, as indicated by the R-wave of the ECG trace and determined by the QT
– Time Table.
The loops in a given protocol are acquired by stages (phases), according to stage configuration
(continuous (prospective) or retrospective (non-continuous)).
Loops in non-continuous stages are limited to a specified loop-per-view maximum (such as four).
View labels can only be selected in the configured order. Acquisition is retrospective - when you
press <Save> on the control panel, the system saves the previously acquired images.
Loops in continuous stages are limited by time rather than a maximum number of loops - the
system stops acquisition after two minutes. Acquisition is prospective - when you select the
stage label and then press <Save> on the control panel, the system starts saving newly
acquired images. In some protocols, the system will jump to Select Mode after retrospective
saving.
When images are saved, the system places a green checkmark to the right of the view or continuous
stage and then shifts the red mark to the next view or next stage.
5.15.2
Stress Echo Acquisition Procedure
To acquire Stress Echo loops, you must enable the ECG function.
1. Use the proper probe and cardiac-related exam mode, press the user-defined key for Stress Echo (Set
the user-defined key for Elastography via the path: [Setup]
[System]
[Key Config].) or touch [Stress
Echo] on the touch screen to enter stress echo imaging.
2.
The system displays the “Select Protocol”
window with the protocol selections. Select the desired
protocol and then click [OK].
The system displays the real-time imaging screen.
If the Stress Echo manual ROI option is selected in the Maintenance dialog box ([Setup]
[Stress
Echo]
[Maintenance]), the system also displays a region of interest (ROI). If Acquire Mode is set as
Full-screen in Maintenance, then no ROI box is displayed.
3. According to the help information in the bottom of the screen, if an ROI is displayed, adjust the ROI
size and position. Press <Update> on the control panel to confirm the ROI.
