Product Manual

GE HEALTHCARERAFT VOLUSON® P8 / VOLUSON® P6
DIRECTION 5450839-100, REVISION 5 DRAFT (JANUARY 17, 2013) BASIC SERVICE MANUAL
5-6 Section 5-2 - General Information
5-2-1 Description of Voluson® P8 / Voluson® P6 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 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® P8 / Voluson®
P6´s high performance HI provides superb detail resolution and penetration, outstanding contrast
resolution, excellent acoustic clutter rejection and an easy to operate user interface.
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.
5-2-1-2 M-Mode
In M-mode, soft tissue structure is presented as scrolling display, with depth on the Y-axis and time on
the X-axis. It is used primarily for cardiac measurements such as value timing on septal wall thickness
when accurate timing information is required. M-mode is also known as T-M mode or time-motion mode.
Ultrasound echoes of different intensities are mapped to different gray scale values in the display.
M-mode displays time motion information of the ultrasound data derived from a stationary beam.
Depth is arranged along the vertical axis with time along the horizontal axis. M-mode is normally used
in conjunction with a 2D image for spatial reference. The 2D image has a graphical line (M-line)
superimposed on the 2D image indicating where the M-mode beam is located.
5-2-1-2-1 MCFM Mode (M Mode + Color Flow Mode)
Color Flow Mode and Color M Mode are Doppler modes intended to add color-coded qualitative
information concerning the relative velocity and direction of fluid motion within the 2D mode or M
mode image. Color Flow overlays color on the M mode trace using velocity and variance color
maps. The Color Flow wedge overlays the 2D mode image and M mode timeline.