Optimizing the Image
5-18 LOGIQ 7 Online Help
Direction 2392536-100 Rev. 1
Dynamic Range (Compression)
Description Dynamic Range controls how echo intensities are converted to
shades of gray, thereby increasing the adjustable range of
contrast. The Dynamic Range control name changes to
Compression on frozen images.
Adjusting To increase/decrease, adjust Dynamic Range.
Values The settings cycle in 3dB steps from 30 dB to 120 dB. The
current value displays. Dynamic Range values vary by probe,
application, and frequency setting.
Dynamic Range levels are returned to the factory or user preset
value when you change the following: Probe, Exam Category,
Exam Calcs, New Patient, or Multi Frequency.
Benefits Dynamic Range is useful for optimizing tissue texture for
different anatomy. Dynamic Range should be adjusted so that
the highest amplitude edges appear as white while lowest levels
(such as blood) are just visible.
Affect on other
controls
Dynamic range operates only in realtime, not in Freeze, CINE,
CINE Timeline, or VCR playback and affects Gain.
Reverse
Description Flips the image 180 degrees left/right.
Adjusting To flip the image 180 degrees, press Reverse. Linear probes do
not rotate.
Values The image rotates in 180 degrees left/right. Reverse settings
vary by probe and application.
Reverse settings are returned to the factory or user preset value
when you change the following: Probe, Exam Category, Exam
Calcs, or New Patient.
Benefits Used for anatomical correctness.
CAUTION
When reading a reverse image, be careful to observe the probe
orientation to avoid possible confusion over scan direction or
left/right image reversal.
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