oct

SOCT SOCT CopernicusCopernicus

TrainingTraining

OPTOPOL Technology Sp. z o.o.

ul. Żabia 42

42-400 Zawiercie

www.optopol.comPaweł WojdasPaweł Wojdas

[email protected]

New features – New softwareNew features – New softwarepre market presentationpre market presentation

PresentationPresentationPresentationPresentation

Part I

Version 1.35 – description of new features

Part II

Market situation and competitors

Terminology: Terminology: A-scan, B-scan, 3D-scanA-scan, B-scan, 3D-scan

A-scan

B-scan

3D- scan

System specificationSystem specificationSystem specificationSystem specification

• Lightsource:Lightsource: SLEDSLED SLEDSLED• Central wavelengthCentral wavelength 840nm 840nm 830nm830nm• Spectrum half bandwidthSpectrum half bandwidth 50nm50nm

• Axial resolution:Axial resolution: 6 μm6 μm 8 8 μmμm• Transversal resoltion:Transversal resoltion:

– IdealIdeal 1122 μm μm 20 20 μmμm– TypicalTypical 18 18 μmμm 30 30 μmμm

• A-scan resolution:A-scan resolution: 1024 points1024 points 1024points1024points

• B-scan resolution:B-scan resolution: 10510500 A-scans00 A-scans 768 A-scans768 A-scans

• Scanning speed:Scanning speed: 2255’000 A-scans’000 A-scans 400 A-scans400 A-scansper secondper second per secondper second

• Optical power entering eye:Optical power entering eye: <750 μW<750 μW <750 μW<750 μW

• Max. B-scan width:Max. B-scan width: 1010 mm mm 10 mm10 mm

• Scanning density:Scanning density: 1050 A-scans1050 A-scans 100 A-scans 100 A-scans

per mmper mm per mm per mm

Time domain OCTSOCT

Copernicus

New software releaseNew software releaseNew software releaseNew software release

version 1.35version 1.35

Description of version differences:

- Optic Nerve head analysis module

- IS/OS to RPE thickness map

- Known bugs fixed

- user interface modifications to make use of device more ergonomical



„New examination window” modifications:

-Joystick is activated faster. Device can be moved before initialization is finished

- fixation is automaticaly set to „Fovea” when device is moved away from patient

- fixation is automaticaly set to „Fovea” when examined eye is changed



„New examination window” modifications:

-Refraction is reseted when different patient is selected

- refraction is reseted during initialization

- Patient database scrolling bug fixed

Results reviewResults reviewResults reviewResults reviewTomogram window

Results reviewResults reviewResults reviewResults reviewAutomated Image analysis

Normal retina

Pathology (Drusen)

Results reviewResults reviewResults reviewResults review3D window

New surface mappings available:

- Fundus mask

- Artificial color mask

- Retina thicknesss map

- RNFL thickness map

- RPE deformation map

Results review Results review Results review Results review Retina analysis window

Results review Results review Results review Results review Retina measurements

Retina thickness

- Outer segments of photoreceptors are included in retina thickness

- Thickness results can be 10%-20% higher than Stratus for the same patient

- Stratus could not see the outer segments of photoreceptors

Results review Results review Results review Results review Retina measurements

IS/OS to RPE thickness

Results reviewResults reviewResults reviewResults reviewNerve head analysis moduleNerve head analysis moduleNerve head analysis moduleNerve head analysis module


Fundus reconstruction image

Disc marker(blue)cup marker (green)

Retina cross section image

Disc marker (blue)Cup marker (green)

RNFL thickness map


Cup offset slider

Disc and Cup parameterspanelRNFL thickness graph around disc

How to find disc positionHow to find disc positionHow to find disc positionHow to find disc position

Nerve head analysis moduleNerve head analysis moduleNerve head analysis moduleNerve head analysis module

1. Detect place where RPE ends

2. Draw line between two RPE ends

3. The line corresponds to disc cross section

4. Length of line is local width of disc at specified cross section

5. Perform analysis for all the images to obtain 3D structure of disc

How to find cup positionHow to find cup positionHow to find cup positionHow to find cup position


1. Find two points on surface which correspond to RPE ends (two red circles)

2. Move the red line 100um to the exerior of eye (default cup offset) – two white circles

3. Mark the point where the white line cuts the inner surface of retina (green circles)

4. Distance between green circles is the local cup width

5. Perform same analysis for all images

How to find disc and cup positionHow to find disc and cup positionHow to find disc and cup positionHow to find disc and cup position


Cup local width

Disc local width

Disc and cup parametersDisc and cup parametersDisc and cup parametersDisc and cup parameters


Disc area – measured along green line plane

Cup area – measured along white line plane

Rim area=Disc area – Cup area

Advantages of this method:

measured values

are independend

of tilt of scans



Cup volume

measured for all scans from white line



Rim volume

measured for all scans above white line



Cup depth



Diameters

-Horizontal Disk

diameter (D)

-Horizontal Cup

diameter (C)

C

D



Diameters

-Vertical Disk

diameter (D)

-Vertical Cup

diameter (C)

Mean diameters CD



Cup to Disc ratio (area)

Cup to Disc ratio (diameters)

- important parameter for glaucoma diagnosis

-Cup area increases when glaucoma develops

- Rim area decreases when glaucoma develops

- Disc area remains almost intact as glaucoma develops

Cup to disk ratioCup to disk ratioCup to disk ratioCup to disk ratio


Normal

Glaucoma

Cup to disk ratioCup to disk ratioCup to disk ratioCup to disk ratio


Glaucoma Normal

Editing recognized pointsEditing recognized pointsEditing recognized pointsEditing recognized points


It is possible to reposition recognized points by dragging them using mouse

- at cross section image

Use handles to

drag

Editing recognized pointsEditing recognized pointsEditing recognized pointsEditing recognized points


It is possible to reposition automaticaly recognized points by dragging them using mouse

- in cross section image

Use handles to

drag

RNFL thickness analysis RNFL thickness analysis RNFL thickness analysis RNFL thickness analysis


RNFL thickness graph around disk

- RNFL is analysed for each individual scan

-Circular area is selected around disk

- RNFL thickness is calculated for each angle on the circle

RNFL thickness analysis RNFL thickness analysis RNFL thickness analysis RNFL thickness analysis


Use this handle to adjust radius

- Parameters of analysed area can be edited manually

Use this handle to adjust ring thickness

ConclusionConclusionConclusionConclusion


New ONH analysis module gives the same functionality as:

-HRT

- cup/disk/rim areas

- volumes

- C/D ratios

- GDx

- nerve fiber layer analysis around disk

SOCT Copernicus becomes 3 devices in 1

AvailabilityAvailabilityAvailabilityAvailabilityVersion 1.35

- 28th-31st March 200728th-31st March 2007

official presentation of ver.1.35 to customers during 6th official presentation of ver.1.35 to customers during 6th International Glaucoma Congress, Athens, GreeceInternational Glaucoma Congress, Athens, Greece

- first half of first half of April 2007April 2007

final testing and preparation for productionfinal testing and preparation for production

- second half of second half of April 2007April 2007

software released for serial productionsoftware released for serial production

- second half of second half of April 2007April 2007

upgrade preparationupgrade preparation

- end of end of April 2007April 2007

upgrade available at our FTP server for all devices on the upgrade available at our FTP server for all devices on the marketmarket

(FTP server http://www.dane.optopol.com)(FTP server http://www.dane.optopol.com)

Further software Further software developmentdevelopment

Further software Further software developmentdevelopment- Increased system performance (main OCT calculation engine Increased system performance (main OCT calculation engine

redesigned and optimized)redesigned and optimized)

- much faster calculationsmuch faster calculations

- much better frame rate for live tomogram imagingmuch better frame rate for live tomogram imaging

- improved image qualityimproved image quality

- changing printout stylechanging printout style

- Implementation of new normative databasesImplementation of new normative databases

- normative databases for optical nerve head analysis normative databases for optical nerve head analysis modulemodule

- further extension of existing normative databasesfurther extension of existing normative databases

- norms based on larger number of samplesnorms based on larger number of samples

- more detailed norms (calculated for complete examination more detailed norms (calculated for complete examination field)field)

- improved automatic segmentation algorithmsimproved automatic segmentation algorithms

- scan quality indexscan quality index

- attractive user interfaceattractive user interface

- interface to external database systems (DICOM)interface to external database systems (DICOM)

Power supply connectionPower supply connectionPower supply connectionPower supply connection

PC LCD PRN

SEPARATING TRANSFORME

R

MEDICAL DEVICESNON MEDICAL DEVICES

Low leakage current requirement for medical systems

NetworkingNetworkingNetworkingNetworking

- The same software installed on server and reviewing stations

- Computers must be in one LAN segment

- software has to be configured differently for server and client

PC

1

PC

2

PC

N. . .

End of part 1End of part 1

Thank youThank you

oct

Health & Medicine

scan bscan

d scan

points bscan resolution

description of new features

nm axial resolution

market situation

pawe wojdas email

optical power