Huvitz HOCT-1, User Manual

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HOCT-1/1F
2. Basic Display for an angiography
No Name Function
1 Screen setting
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Single: display angio information about only single eye.
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Both: display angio information about both of eyes.
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Compare: compare angio data from two different days.
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Progression: It is easy to check the progress by comparing the eyes taken
over several days.
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Panorama: stitch several map and make one of big detail angio image.
2 Basic/Detail Display Choose one between Basic angio map and Detail angio map.
3
Angio image
Select the angiogram in the combo box.
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Superficial: Its signal depth is from ILM(0um) to IPL(0um).
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Deep: Its signal depth is from IPL (0um) to OPL(0um).
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Outer: Its signal depth is from OPL(0um) to BRM(0um).
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Choriocapillary: Its signal depth is from BRM(15um) to BRM(45um).
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Retina: Its signal depth is from ILM(0um) to OPL(0um).
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Custom: Its signal depth is customized by user. As user set the depth range,
angiogram is also changed
4
5
6
7
8
Enface, Thickness,
Depth coded map
Select the image in the combo box.
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Enface: It represent Enface image.
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Thickness: It represent Thickness map.
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Depth coded map: Choriocapillary, Deep, Outer map is overlapped in this
image.
9 Layer and depth info
Inform the layer&depth of the displayed image. And User make the custom
angiogram by setting the layer&depth with this tool bar.
10 B-Scan
Acquired B-Scan with angiogram. And Tomography can overlap with a red
color for a blood probability.
11 Sensitivity slider Control blood vessel sensitivity with this slider.
The SOCT algorithm calculates the decorrelation value for each pixel in the B-scan by comparing the OCT signal
intensity variations across the B-scans in each set. Static tissue locations, without flow, exhibit little variation in OCT
signal intensity over the repeated B-scans; Therefore, the decorrelation values would be low. Tissue locations with flow
(for example inside a flowing vessel), show large variations in OCT signal intensity over the repeated B-scans. At these
pixel locations, the decorrelation values would be high, indicating the presence of flow. The Angiogram image is a
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