GE H48671KK, Service Manual

Page: 190 / 432

GE H
EALTHCARE
RAFT V
OLUSON
E8 / V
OLUSON
E6
D
IRECTION
KTD102576, R
EVISION
7 DRAFT (A
UGUST
23, 2012) S
ERVICE
M
ANUAL
5-6 Section 5-2 - General Information
5-2-1 Description of Voluson E8 / Voluson E6 Operating Modes
5-2-1-1 B-Mode or 2D-Mode
B-Mode or 2D-mode is a two-dimensional image of the amplitude of the echo signal. It is used for
location and measurement of anatomical structures and for spatial orientation during operation of other
modes. In 2D-mode, a two-dimensional cross-section of a three-dimensional soft tissue structure such
as the heart is displayed in real time. Ultrasound echoes of different intensities are mapped to different
gray scale or color values in the display. The outline of the 2D cross-section may be a rectangle,
parallelogram, sector or 360-degree circle, depending on the particular transducer used.
2D-mode can be used in combination with any other mode.
5-2-1-1-1 Coded Harmonic Imaging (HI)
In Harmonic Imaging, acoustic aberrations due to tissue are minimized by receiving and processing
the second harmonic signal that is generated within the insonified tissue. Voluson E8 / Voluson
E6´s high performance HI provides superb detail resolution and penetration, outstanding contrast
resolution, excellent acoustic clutter rejection and an easy to operate user interface.
Coded Harmonics enhances near field resolution for improved small parts imaging as well as far
field penetration. It diminishes low frequency amplitude noise and improves imaging technically
difficult patients. It may be especially beneficial when imaging isoechoic lesions in shallow-depth
anatomy in the breast, liver and hard-to-visualize fetal anatomy.
Coded Harmonics may improve the B-Mode image quality without introducing a contrast agent.
5-2-1-1-2 XTD-View
XTD-View (Extended View) provides the ability to construct and view a static 2D image which is
wider than the field of view of a given transducer. This feature allows viewing and measurement of
anatomy that is larger than what would fit in a single image. XTD-View constructs the extended
image from individual image frames as the operator slides the transducer along the surface of the
skin in direction of the scan plane.
Examples include scanning of vascular structures and connective tissues in the arms and legs.
5-2-1-1-3 B-Flow (optional at Voluson E6 BT09)
For details review: Section 5-2-4-6 "B-Flow" on page 5-18
5-2-1-1-4 Coded Contrast Imaging (optional)
For details review: Section 5-2-4-7 "Coded Contrast Imaging" on page 5-18
5-2-1-1-5 Elastography (optional at BT10, BT12 and BT13 systems)
For details review: Section 5-2-4-17 "Elastography" on page 5-20