DGH TECHNOLOGY SCANMATE FLEX - Reviewing A-Scan Videos and Measurements; Manual Measurement Adjustments

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REVIEWING A-SCAN VIDEOS AND MEASUREMENTS
REVIEW WAVEFORM VIDEOS
Waveform videos captured during the exam can be reviewed frame by frame by pressing the
← and → keys on the keyboard or by moving the slider along the boom of the screen. If the
currently displayed frame is associated with a measurement in the bank, the corresponding
entry in the measurement bank will be highlighted. The scan video is replayed by clicking the
[REWIND] buon and then the [PLAY] buon in the boom le-hand corner.
DELETING A-SCAN MEASUREMENTS
If a measurement is observed which is suspect because it does not agree with the other
measurements, it may be removed or replaced with a dierent measurement. To delete an
entry from the measurement bank, rst select the [MANUAL MODE] radio buon. Right-click on
the entry to be removed and select [REMOVE MEASUREMENT] from the menu .
MANUAL MEASUREMENT MODE REVIEW
The Scanmate soware can be placed in Manual Measurement Mode by selecng the [MANUAL
MODE] radio buon. In this mode scans must be stopped by the operator and measurements
must be manually selected and entered into the measurement bank. Manual Mode scans are
only stopped by user commands or if the video buer expires. Measurements can be reviewed
and deleted as described above. Users can also make gain and measurement point adjustments.
On a desired frame, the measurement points can be set by the user. In contact mode, three red
arrows represent measurement points that can be selected; they represent the anterior and
posterior lens surfaces (L1 and L2) and the rena (R). In immersion mode, the corneal peak is
also visible in the waveform and is indicated by an addional arrow at the lemost echo.
The red arrows can be moved horizontally by using the mouse to le click-and-hold on the
arrow, then sliding it to the desired posion. When a measurement arrow is released it will snap
to the closest intersecon of the measurement level and the displayed waveform. The
measurement points can only be adjusted when the video is paused. The horizontal green line
represents the measurement level. In manual mode, the measurement level can be adjusted up
and down while the video is paused or playing. The three sliders control the gain at the three
measurement points (L1, L2, and R). They can be adjusted independently while the video is
paused or playing. The amount of gain is displayed as a percentage of the incoming waveform
amplitude.
A measurement can be added to the measurement bank by right-clicking in the measurement
bank and selecng [INSERT MEASUREMENT]. Measurements that are manually inserted are
given a “MAN” rank.
SAVE A-SCAN MEASUREMENTS
Go to File > Save > A-Scan Measurements† to save the entries in the measurement bank for
both the OD and OS. A saved A-Scan measurement will also contain the measurement average
and standard deviaon for the AXL, ACD, LT and VCD, as well as lens and vitreous type.
SAVE A-SCAN VIDEO
Go to File > Save > A-Scan Video† to save all frames of the A-Scan performed. Saving the A-Scan
Video (rather than just the measurements) allows the user to review the enre measurement
procedure and select manual measurement points. The user can also make adjustments to the
waveform, such as gain and compression sensivity sengs. The scan video and associated
measurements will remain in memory for each eye (OD and/or OS) unl either a new scan is
performed for that eye, or a new paent is selected.
†This command may be executed through voice control. Refer to the A-Scan Voice Controls secon.