GE Voluson i BT06, Руководство по обслуживанию

Страница: 246 / 516

GE V
OLUSON
i / V
OLUSON
e
D
IRECTION
KTI106052, R
EVISION
10 S
ERVICE
M
ANUAL
5-14 Section 5-2 - General Information
5-2-5-1 3D Mode
refer to: Section 5-2-2 "3D/4D Imaging" on page 5-7
5-2-5-2 Real Time 4D
Real Time 4D mode is obtained through continuous volume acquisition and parallel calculation of 3D
rendered images. In Real Time 4D mode the volume acquisition box is at the same time the render box.
All information in the volume box is used for the render process. In Real Time 4D mode a “frame rate”
of up to 25 volumes/second at Voluson i (up to 15 volumes/second at Voluson e) is possible.
By freezing the acquired volumes, size can be adjusted, manipulated manually as known from the
Voluson 3D Mode.
The Voluson i / Voluson e portable ultrasound system supports two 4D Operation Modes.
5-2-5-2-1 Classic Mode
Advanced Mode with dedicated Voluson Volume features
5-2-5-2-2 Smart 4D Mode
Easy/Speedy operation with as few controls as possible;
especially designed for 4D beginners and users who want quick surface renderings.
5-2-5-3 VOCAL* - Virtual Organ Computer-aided Analysis
Diagnosis and therapy of cancer is one of the most important issues in medical care.
The VOCAL - Imaging program allows completely new possibilities in cancer diagnosis, therapy
planning and follow-up therapy control.
VOCAL offers different functions:
• Manual Contour detection of structures (such as tumor lesion, cyst, prostate, etc.) and subsequent
volume calculation.
The accuracy of the process can be visually controlled by the examiner in multi-planar display.
• Construction of a virtual shell around the contour of the lesion. The wall thickness of the shell can
be defined. The shell can be imagined as a layer of tissue around the lesion, where the tumor
vascularization takes place.
• Automatic calculation of the vascularization within the shell by 3D color histogram by comparing the
number of color voxels to the number of grayscale voxels.
5-2-5-4 TUI* - Tomographic Ultrasound Imaging
TUI is a new visualization mode for 3D and 4D data sets. The data is presented as slices through the
data set which are parallel to each other. An overview image, which is orthogonal to the parallel slices,
shows which parts of the volume are displayed in the parallel planes. This method of visualisation is
consistent with the way other medical systems such as CT or MRI, present the data to the user.
The distance between the different planes can be adjusted to the requirements of the given data set.
In addition it is possible to set the number of planes. The planes and the overview image can also be
printed to a DICOM
®
printer, for easier comparison of the ultrasound data with CT and/or MRI data.
NOTICE
!! NOTICE:
The option “VOCAL” is not available for
Voluson e
systems (marked with
*
in this manual).
NOTICE
!! NOTICE:
The option “TUI” is not available for
Voluson e
systems (marked with
*
in this manual).