Siemens SONOLINE G40 Quick Card User Manual

SONOLINE G40™ Ultrasound System
Quick Scan Card
3-Scape Real-Time 3D Imaging
The 3-Scape Real-Time 3D Imaging feature is a system option that
allows the acquisition of three-dimensional ultrasound images.
Ultrasound data based on three-dimensional imaging methods can assist
the diagnostic process. 3D imaging anatomical volumes is suited for
viewing and post processing e.g.: arbitrary slicing, volume rendering,
rotation and magnification of localized areas of interest.
Intended Use
The 3D imaging feature can be used to image any structure where a view
cannot be achieved by standard 2D-mode ultrasound to improve
understanding of complex structures.
3D imaging is intended for the following uses:
•
Imaging of volumes to improve diagnostic analysis.
•
Rotation of 3D images (volume and slices) to view aspects of a
structure that cannot be imaged directly.
Setting Up 3-Scape Real Time Imaging
Preparation for volume acquisition begins with scanning in 2D-mode.
Image optimization must be competed before acquisition as only TGC,
and over all GAIN are available during acquisition.
After activating 3D imaging, you can define a 3D ROI to limit
acquisition to the data contained within the ROI.
Present Software 2.0 activation of the 3D imaging feature is in the OB
Exam type and on the CH5-2.
btain Volumes and Images by the following method:
O
•
Rocked: An angular scanning motion, during which the
transducer face is used as a pivot (does not slide).
Use the ON SCREEN MENU to select 3-Scape
•
3D Activates Imaging and Displays controls
When you activate 3D imaging, the system displays 3D ROI, On Screen
Menu box and a time gauge display on the right of the screen. (e.g.:
120°/16sec)
.
The system updates the scan length/angle and scan duration depicted on
the time gauge. The system computes the scan duration based on the
selected scan length or angle range, acquisition speed, and the current
frame rate. The seconds of the scan duration is the amount of time
required by the system to acquire the volume.
•
P Allows control of Power
•
3D Region of Interest (ROI) Activates display of the 3-Scape
ROI
•
Scan Method Fixed for Rocked
•
Angle selects the scan angle for volume acquisition.
•
Scan Speed/Quality Selects the scan speed for volume
acquisition.
Acquiring the Volume
1. Rotate the SELECT control to highlight 3D and then depress knob to
activate.
2. Optimize the 2D-mode image.
3. To resize the 3D ROI press SET key and move trackball to increase or
decrease size. Press SET key again to lock.
b. Position the ROI use trackball.
2. Press the UPDATE key to begin acquisition. Rocked scanning is
required. Use the transducer face as a pivot.
3. To cancel the acquisition press the UPDATE key e.g.: image artifact
or patient movement.
4. To complete volume acquisition before the scan duration on the time
gauge elapses, press the FREEZE key.
The system processes the acquired information into data sets for the 3D
volume and then displays the volume.
5. To begin another volume acquisition without saving the displayed
volume, press the 2D control or the FREEZE control.
Viewing the Volume and Slices
When you complete volume acquisition or retrieve a volume from a
previous examination, the system initially displays the volume and slices
in the quadrant display format.
Quadrants are designated A, B, C, and D. Quadrant D (the lower-right
quadrant) contains the volume. Quadrants A, B, and C contain arbitrary
slices of the volume, initially oriented at the center of the volume; each
slice is orthogonal to the other two slices. The slices are also referred to
as Multi-Planar Reformatting (MPR) quadrants. A marker (focal point)
within each slice quadrant indicates the point of intersection of the slices.
The system initially displays the markers at the center of each slice.
You can select a display format, select a quadrant, display the acquired
2D-mode data, and remove data from the volume to reveal anatomical
structures, change the surface appearance of the volume and Animation
control. You can use these post-processing functions to help differentiate
anatomic structure.
You can also rotate the volume and reposition slices. Use the Update key
to cycle through the appropriate icons and rotate volume with the track
ball. Note: Major Mode knobs will turn Volume and slices but icon will
not change to give you direction.
A=Acquisition
B= Elevation
C= Coronal
D= Volume
Orientation Graphic
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