Krios - NEUROSPEC

KriosImprove source-localization accuracy and streamline electrode registration of EEG, MEG, NIRS, PSG and ECG tests conducted with OEM equipment with the handheld digitizing

scanner that integrates your existing neurodiagnostic system: the Polaris® Krios from NDI.

Registering and labelling electrodes (sensors) in the subject’s coordinate system for EEG, MEG, NIRS, PSG and ECG research

and clinical tests conducted with OEM equipment can be a time-consuming and painstaking process. But it doesn’t have to be.

As an OEM solution, the Polaris® Krios handheld digitizing scanner integrates into your existing neurodiagnostic system to

measure, identify, and map electrode positions. Through an NDI software interface this measurement data is used to identify

and label each electrode within your neurofeedback software.

The entire setup, from scanning to electrode labelling, takes only minutes. It’s an integration of technologies that combines

the best of real-time 3D measurement and neurodiagnostic monitoring equipment — and will transform electrode co-

registration for the better.

Added Value to Your Existing OEM Product SuiteExtensive Integration Experience• Benefit from over 30 years of measurement innovation and

integration expertise – NDI is trusted by the world’s foremost medical device manufacturers.

Accurate and Reliable Data Collection• Capture marker positions to accuracy within 0.5 mm and a

repeatability of 0.1 mm. Only actual markers are measured for electrode mapping purposes.

Integrated Touch Probe• Improve the detection of obstructed electrodes and electrode

positioning with one-touch localization and registration of fiducial points such as the nasion, inion, and preauricular points.

Growth through Technology• Add a new level of versatility to your existing system offering,

and extend its capabilities to additional electrodiagnostic and clinical neurophysiology applications and markets.

Compliant with Safety Regulations• Maintain subject safety – the Krios does not use a laser, and is

compliant with medical device regulation IEC 60601-1 3rd Edition.

Benefits to OperatorsLightweight Ergonomic Scanner• Operate the Krios with ease – its balanced one-hand grip, handy

start/stop trigger button, color-coded LED status indicator lights, and audio cues maximize scanning efficiency.

No Marker Calculations• Scan right away – self-calibrating markers attach to any sized or

shaped electrode, in any order. No position calculations or sequencing are required. Marker positions are automatically mapped.

Automatic Registration Process• Save significant electrode registration time – up to 256 markers can

be scanned in less than 2 minutes. Markers are then automatically mapped and registered within the neurofeedback software.

Built-In Snapshot Mode• Capture digital images of the electrode setup for inclusion in the

subject’s file. For example, the subject has an asymmetrical skull that requires a unique electrode placement.

Instant Localization Results • Receive real-time scanning feedback – scanner LED status

indicator lights notify operators of successful/failed marker acquisition, while the software provides a running tally of localized markers.

A New Approach to Electrode Localization

The Polaris Krios is based on optical measurement technology; the scanner uses light reflected by markers

to determine their position coordinates.

Attach each electrode (with prefixed marker) to the scalp or cap.

Scan the head with the Krios to localize each marker’s position. This localization process creates a digital point cloud (3D model) and rigid body of marker coordinates.

Probe anatomical features to establish fiducial (reference) points within the rigid body, such as the nasion, inion, and preauricular points of the subject’s head.

ResultsThe rigid body is transformed from the Krios coordinate system to the subject coordinate system. Using the Krios software, operators can append notes to electrode positions. The final point cloud with all identified marker coordinates, fiducial points, and notes, is saved as a .CSV file for export to the neurofeedback software. The point cloud can then be mapped to a pre-defined electrode configuration within the neurofeedback software.

A New Approach toElectrode Localization

How the Polaris®

Krios Works

SpecificationsDimensions (L x W x H) 155 mm x 75 mm x 300 mm

Weight 860 gPower Requirements 100-250 V AC ~50/60 Hz, 1 A

Sensor SpecificationsMeasurement Volume 883 mm x 840 mm x 928 mm

Update Frequency 20, 30, 60 Hz

Scan Rate 256 markers < 2 minutes

Accuracy Within 0.5 mm RMS

Stand-off 105 mm from the scanner

Depth of View 778 mm

Near field width 276 mm

Far field width 840 mm

Safety IEC 60601-1 3rd Edition

300 mm

75 mm155 mm

883 mm

840 mm

928 mm

Copyright 2015 Northern Digital Inc. All rights reserved. Due to continuous product improvement, specifications are subject to change without notice. NDI and Polaris are registered trademarks

of Northern Digital Inc. The Polaris is a general metrology instrument. Use in a particular application must be determined by the user. All weights and dimensions are approximate. Contact NDI for

details regarding above specifications. Printed in Canada - October 2015. NDI P/N 8300317 (Rev 002)

NDI INTERNATIONAL HEADQUARTERS CANADA + 1 (877) 634-6340 [email protected] www.ndigital.com

NDI EUROPE GmbH

GERMANY + 49 (77 32) 8234-0 [email protected] www.ndieurope.com

NDI ASIA PACIFIC

HONG KONG + (852) 2802 2205 [email protected] www.ndigital.com

ASCENSION TECHNOLOGY CORPORATION (an NDI company)

USA+ 1 (802) [email protected]

www.ndigital.com/krios

Technical Overview

Krios - NEUROSPEC

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