BenQ T3300 - Adjusting the Scan Depth; Adjusting the Focus Depth, Focal Zone and Focal Span; Adjusting Dynamic Range; Using Tissue Harmonic Imaging (THI)

Using Image Controls
T3300 Diagnostic Ultrasound System | 80 | B00601-010 4/10/17
7.1.5 Adjusting the Scan Depth
Adjust the field of view. To view larger or deeper structures, increase the depth. To enlarge the
display of structures near the skin line, decrease the depth. The system automatically adjusts the
frame rate (FPS) and acoustic power indices (TI/MI) based on the scan depth.
Touch Depth +/- or flick vertically on the scan area to set the scan depth.
7.1.6 Adjusting the Focus Depth, Focal Zone and Focal span
Focus optimizes the image by increasing the resolution for a specific area and is displayed by a red
arrow marker indicated at the depth ruler. Depending on the transducer in use and the mode
selected, multiple focus depths can be added. Increasing the number of focal zones decreases the
frame rate. If the frame rate is not high enough, try decreasing the number of focal zones.
Touch Focus +/- to adjust the depth value. Touch Focal Zone +/- to select the desired number of
focal zones. Touch Focal Span +/- to adjust the distance between the focal zones.
7.1.7 Adjusting Dynamic Range
Control the range of acoustic levels displayed in the image, which affects the contrast of the image.
Touch Dyn Range +/- to adjust the amount of compression.
7.1.8 Using Tissue Harmonic Imaging (THI)
Reduce superficial artifact and provide better gray scale contrast by processing an integer multiple
of the fundamental frequency, a harmonic wave.
Touch THI to enable this function.
7.1.9 Adjusting Persistence
Adjust the amount of frame averaging from real-time images or loops. Higher persistence produces
less speckled and smoother image but reduces the temporal resolution.
Touch Persist +/- to adjust the value.
7.1.10 Adjusting Sharpness and Smoothing
Improve the sharpness of the image by enhancing the edge contrast and smoothening the tissue
speckle.
Touch QScan +/- to adjust the value.
7.1.11 Adjusting Gray Map
Change how the amplitude is converted to brightness.
Touch Gray Map +/- to adjust the value.
7.1.12 Adjusting Chroma Map
Adjust the chroma (color tone and saturation) value with different brightness.
Touch Chroma +/- to adjust the tone.
7.1.13 Adjusting Steer Angle
Optimize the viewing area by adjusting the steer angle. This function works only with linear array
transducers.
Touch Steering +/- to adjust the angle.