B-Flow - GE Voluson S6 Basic User Manual

6.5.1 2D Gray Map
6.5.2 Tint Map

6.6 B-Flow

Note
Voluson® S6/S8 Basic User Manual
5433669-100 Revision 4
This defines the relation between echo amplitude (input) and brightness (output) in a look-up
table. In total 18 Gray Maps are available.You can select a certain map independently for each
one of the imaging modes (e.g., Map 5 for 2D- and Map 2 for M-imaging etc.). For 3D Gray
Map selection: '3D Gray Chroma Map'
1. Select the [Sub xx] key regardless which mode is active, and then the [Gray Map] menu.
The Gray Map menu appears.
key bright: The Gray map selection assigned to this mode.
Whereas the Gray map defines brightness, the Tint map defines the relation between echo
amplitude (input) and Chroma value (color tone and saturation) in a look-up table. You can
select from a total of 16 Tint maps - an independent map for each one of the imaging modes.
For example: [Candle] for 2D imaging and [Blue] for M imaging, etc.
1. Select the [Sub xx] key regardless which mode is active, and then the [Tint] key. The Tint
map menu appears.
2. Select the tint mode . key bright: Tint map selection assigned to this mode.
Remarks: The actual values of the tint map depend on the current gray map. This means the
tint map values will be adjusted by selecting a different gray map.
B-Flow is an option. If this option is not installed, the [B-Flow] functions are hidden.
B-Flow helps to visualize complex hemodynamics and highlights moving structures or blood. It
is visually intuitive when viewing blood flow, for acute thrombosis, parenchymal flow and jets.
B-Flow has some major advantages over Color Doppler mode:
•
less angle-dependent
•
no velocity aliasing artefacts
•
full field of view
on page 9-47
2D Mode
6-23