Mindray Recho R9 - Page 213

Image Optimization 5-139
Cycling CT/MR/PET/Freehand Image Axially
Description
Rotate X/Y/Z to rotate CT/MR/PET/Freehand image. Obtain the desired CT/MR/PET
plane to register.
Operation Rotate <M>, <PW>, or <C> knob to cycle CT/MR/PET/freehand image through X-axis,
Y-axis or z-axis in increment of 2°. The rotation range is 0° ~ 360° in increment of 2°.
See also Chapter 5.17.11 Rotating/Scrolling CT/MR/PET/Freehand Image.
Offset X/Offset Y CT/MR/PET/Freehand Image
Description
It is available to offset CT/MR/PET/Freehand image through X-axis and Y-axis and
obtain a proper position to register.
Operation Rotate [Offset X]/[Offset Y] to offset the CT/MR/PET image.
Scrolling CT/MR/PET/Freehand Image
Description
It is available to scroll one certain plane (sagittal/transverse/coronal) of
CT/MR/PET/Freehand image on the Ultrasound System and obtain a desired
CT/MR/PET/Freehand plane to register.
Operation Rotate the <4D> key to scroll CT/MR/PET/Freehand plane.
See also Chapter 5.17.11 Rotating/Scrolling CT/MR/PET/Freehand Image for scrolling
operations.
Window Width (Window W)/Window Level (Window L)
Description It is available to set CT/MR/PET/freehand image contrast via the window width.
It is available to set CT/MR/PET/freehand image grey scale via the window level.
Window
Width
Rotate [Window W] to set the value in increment of 1.
Effect
The larger the window width is, the poorer the image contrast becomes.
The smaller the window width is, the better the image contrast becomes.
Window
Level
Rotate [Window L] to set the value in increment of 1.
Effect
The darker image on CT/MR/PET/freehand image may be missed if the window level
becomes larger. The image with brighter grey scale may appear then.
The darker scale on CT/MR/PET/freehand image may appear on the screen if the
window level becomes smaller.
Window
W/Window
L
Tap [Fast Adjust Window W/L]. Move the trackball to set the window width and window
level.
Move the trackball left; the window width becomes smaller, and the window level
becomes larger; the image contrast becomes more visible.
Move the trackball right; the window width becomes larger, and the window level
becomes smaller; the image contrast becomes poorer.