DGH TECHNOLOGY SCANMATE FLEX - A-Scan Measurement Quality; Alignment Ranking System

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ALIGNMENT RANKING SYSTEM
In Automac Measurement Mode, the Scanmate Soware uses a
paern recognion algorithm to determine when the probe is
properly aligned. The alignment algorithm rst looks for the proper
paern of reectance peaks from each expected interface. Then
the algorithm examines the renal spike for parcular signal
characteriscs which are produced only by renal interfaces.
Waveforms that meet the alignment criteria are ranked and put
into the measurement bank.
Alignment is ranked using a “star” system. As measurements enter
the measurement bank, they are given a 1-star, 2-star or 3-star
rank, with 3-star being the best. 3-star ranked measurements will
replace those in the bank with a lower ranking.
In order to meet the measurement criteria, eight measurements
must be obtained that meet the ranking (3-Star) and standard
deviaon requirements. Standard deviaon requirements can be
viewed and adjusted by selecng Preferences > Doctor.
Once the measurement bank is lled with 3-star measurements, and
all measurements are within the standard deviaon parameters,
measurement will automacally stop. The entries in the bank are
used to calculate the measurement average.
If 3-star alignment is not achieved within the alignment meout
period, a warning message will appear stang that alignment
accuracy requirements will be reduced. 1-star, 2-star and 3-star
measurements will be accepted for calculang the average.
If alignment connues to be undetected, a warning message will
appear stang that alignment accuracy requirements will be
disabled, placing the system in “Esmate Mode”. All measurements,
regardless of alignment, will be accepted for calculang the average.
If measurements are obtained that do not show signs of alignment,
they will be given an “EST” ranking.
NOTE: Measurements with an “EST” ranking do not show signs of alignment. Star ranked
measurements should be given preference over “EST” ranked measurements when possible.
If eight valid measurements are not obtained prior to the video buer expiring, the scan will
me out. Two long beeps will signal that the scan has med out.
VIDEO BUFFER FULL
If 8 valid measurements have not been obtained before the video buer is full, the scan will me
out as indicated by two long beeps. The default video duraon is 1024 frames. This can be
adjusted in the Preferences > System menu.