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NIRScout

Products < Data acquisition < Systems < DYNOT / fNIRS <

A Complete, Scalable Neuroimaging Solution

The NIRScout is an ultra-compact, scalable solution for applications where cost, size, and flexibility are the dominant concerns: this system is the most highly-evolved of the DYNOT imagers, well suited to everything from entry-level studies to tomographic imaging for advanced research. Its small size and portability make it suitable for teaching and a wide range of applications in which the subject needs to be free to move.

Integrated Solution

NIRScout offers multiple tomography-capable optical measurement channels and a digital I/O trigger interface for easy
realization of your experimental paradigm. The user interface allows filtering and block-averaging of the data in real
time, which is especially useful for exploratory studies and teaching applications. Various optode configurations are
available, with optional integration with EEG measurments. NIRScout is compatible with a range of existing NIRx
products and the standard NIRx data format.

Features at a Glance

Ultra-compact
LED p to 388 S-D pairsillumination (32 ch. max.)
Digital detection (48 ch. max)
Up to 388 S-D pairs
Digital trigger I/O
Flexible imaging pads
Optional EEG compatibility
Real-time display
Compatible with NIRx fiber optics, accessories, dynamic phantom
Compatible with NIRx NAVI software

Selected Technical Specifications

Optical Detection

No. of Channels:.........................................1-48 (Parallel Digital Demodulation)
Sensitivity:..................................................< 1pW NEP

Dynamic Range:..........................................90dBopt
Sensor Type:...............................................Si Photodiode

Optical Illumination

No. of Illumination Sources:..........................1-32 (Time-Multiplexed)
Wavelengths:...............................................760 nm, 850 nm (Frequency-Encoded)
Power:........................................................10 mW / Wavelength
Multiplexing Rate:........................................40 Hz / No. of Sources
Emitter Type:...............................................LED

Communication

Host:...........................................................USB 2.0
Experiment:.................................................TTL/CMOS (1-4 Trigger In, 1-2 Trigger out)

Electrical

Supply Voltage:............................................90-250 VAC (50-60Hz)

Physical

Size (W L H, in mm):.....................................257 (42HP) 326 165 (3U)
Weight:........................................................5 kg

Meauring Head Options

Open Scaffolding Measuring Head

Adjustable to accommodate a wide range of individuals
Modular design allows to select from hundreds of fiber positions,
Covers the entire head to enable imaging of virtually any part of the cortex
Fast and easy configuration, application and adjustment
Individually spring-loaded fibers to ensure good optical contact

DYNOT Elastomeric Measuring Head

Available in a wide range of sizes to accommodate different head sizes
Covers the entire head to enable imaging of virtually any part of the cortex
Suitable for combined DYNOT / EEG studies
Fast and easy configuration, application and adjustment
Individually spring-loaded fibers to ensure good optical contact

Small Animal Measuring Head

NIRx small animal measuring head

Low-cost
Non-invasive
Suitable for longitudinal studies
Image haemoglobin or reporter genes in molecular expression studies
Directly assess blood flow effects of candidate drugs

dynaSCAN Data Acquisition Software

All NIRx systems are intuitively operated through a graphical user interface (GUI). The interface offers a range of automated procedures to assist the investigator in the setup of the measurement. Integrated system check procedures ensure instrument function and data integrity. The GUI displays measured data for all channels in real-time.

System Setup Screen

Specification of source-detector geometry
Automated/manual detector gain setup
Scan mode selection (full tomograhic, fast scan)
Scan time selection

System Check Screen

Computer-assisted optical alignment
Automated system calibration
Instrument performance checks
Setup/data collection integrity checks

Data Viewing Screen

Real-time scrolling of source-detector values
User-selectable viewing of wavelenght-dependent readings
Interactive display scales adjustment

NAVI : Near-Infrared Analysis, Visualization and Imaging Software Suite

NAVI - a problem solving environment for the analysis, visualization, and image reconstruction for NIR diffuse optical tomography. NAVI is is a constellation of system performance checking, frequency filtering, image formation, feature extraction, statistical analysis, data viewing, data export, and file management tools. It allows the user to comprehensively examine functional features of NIRS data. Features include multifunctional 2D/3D volume rendering visualizaiton, data integrity checking, 2D/3D FEM mesh generation, data exporting to SMP, AFNI, ANALYZE, etc, data filtering, spectral and even analysis and a comprehensive user interface.

NAVI Features

Multifunctional 2D/3D/volume rendering visualization
Data integrity checking
Data editor
Status window
Electronic journal for automated file management and documentation
2D/3D FEM mesh generation capability
Fast, stable image reconstruction
Image enhancement
Library/user definable anatomical priors
Data exporting to SMP, AFNI, ANALYZE, etc.
Signal processing:
- Data filtering
- Temporal decomposition/GLM techniques
- Spectral analysis
- Event analysis
Optional SQL web-accessible data base
Comprehensive user interface

Optional Accessories

Event Synchronizer

Provides synchronization between NIRS measurement and external hardware and/or stimulus presentation.
Eight independent digital input lines (TTL/CMOS level edge sensitive)
Up to two digital output lines (TTL/CMOS)
Individual breakout (BNC) and parallel port connection

DOTS: DYNAMIC Optical Tissue Simulator

Includes a silicone head phantom, control system and interface software.

Used in system training and quality assurance
Experimental Validation: Able to duplicate hemodynamic responses
System calibration
Benchmarking and algorithm testing

NIRx is the only company Worldwide to commercially offer a dynamic phantom in the field of NIRS imaging. This is considered proprietary technology and is patent protected (Please enquire.for examples of experimental validation studies.)

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