Measuring brain and muscle oxygenation simultaneously using only one device

PortaLite
Written By Guest User

Where light meets Lite

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Where light meets Lite 〰️

Near-infrared spectroscopy (NIRS) is a non-invasive technology measuring saturation and oxygenation of local tissue underneath the sensor – such as brain and muscle tissue.

The PortaLite MKII measures not only relative concentration changes in oxy- and deoxy-hemoglobin, but also absolute value of tissue saturation index (TSI). Hence, it perfectly can be used to reliably to acquire both cerebral and muscle oxygenation.

Unlimited field of applications

Whether in sports science, hypoxia and altitude research, clinical studies or many other research fields – measuring oxygenation in brain and muscle simultaneously becomes increasingly important. It reveals what is happening in brain and muscle during e.g. physical activity, enables comparison of cerebral and muscle oxygenation levels and can lead to novel information and findings.

Light, easy to use and truly portable

Continuous development and improvement, as well as enabling and supporting new research possibilities with NIRS is important for us.

Our new device, the PortaLite MKII, contains two sensor connection possibilities per control unit. This enables measuring from two sensors and two different locations at the same time using only one device. On brain and muscle tissue, both brain hemispheres, or different muscle groups simultaneously — the device can be applied in various ways. Additionally, the PortaLite MKII is truly portable, lightweight and allows for both online and offline measurements. Hence, it is the perfect device to be used to assess brain and muscle oxygenation simultaneously.

Reducing physiological "noise"

Next to three long channels, each of the PortaLite MKII sensors comes with three built-in short channels with decreased receiver-transmitter distance. These short separation channels (SSC) enable measuring from superficial tissue layers and can be used to improve data quality!

 
 
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Which experimental designs to use in fNIRS — Introduction
Which experimental designs to use in fNIRS — Introduction

This is the introduction post of our blogpost series on experimental designs in fNIRS. In this blogpost, we explain what fNIRS measures, which general considerations have to be considered, and which frequent experimental setups we have for fNIRS.

Beyond the Brain: Unveiling the Mind-Muscle Connection with Simultaneous NIRS
Beyond the Brain: Unveiling the Mind-Muscle Connection with Simultaneous NIRS

NIRS can be applied on any tissue enabling to measure brain and muscle oxygenation simultaneously. Read this blogpost to learn more about application areas employing NIRS on muscle and brain at the same time, recently published literature and solutions Artinis offers to make this possible.

Publication overview 2023: Using our Artinis NIRS devices to measure in the muscle
Publication overview 2023: Using our Artinis NIRS devices to measure in the muscle

We are proud that in 2023, an increasing number of publications using our NIRS devices to measure muscle oxygenation was found. In this blogpost, we list application areas with papers released last year utilizing our devices. We also highlight and summarize interesting publications per application category.

Publication overview 2023: Using our (f)NIRS devices to measure in the brain
Publication overview 2023: Using our (f)NIRS devices to measure in the brain

We are proud that in 2023 an increasing number of publications using our (f)NIRS devices to measure brain activity could be found. In this blogpost, we list application areas with papers released last year utilizing our devices. We also highlight and summarize interesting publications per application category.

How Artinis fNIRS systems are ideal for monitoring the brain of sensitive participants
How Artinis fNIRS systems are ideal for monitoring the brain of sensitive participants

Functional Near-Infrared Spectroscopy is a neuroimaging modality measuring brain activity, that offers various advantages, such as easy usability and non-invasiveness. Thus, it can perfectly be applied to sensitive subjects, such as infants, toddlers, and the elderly. Read in this blog post, what makes fNIRS a suitable technology to measure neural activity in sensitive subjects, and how it is currently used in this population.

Publication Overview with our NIRS devices in 2022 – Muscle
Publication Overview with our NIRS devices in 2022 – Muscle

We are proud that several papers using our NIRS devices to measure muscle oxygenation from different body parts and in various application fields were published in 2022. Read this blog post to get an overview of application areas NIRS can be used in, and which devices can be applied. Also, find highlighted publications per category that were performed with our devices in 2022.

Publication Overview with our NIRS devices in 2022 – Brain
Publication Overview with our NIRS devices in 2022 – Brain

We are proud that several papers using our (f)NIRS devices to measure brain activation from different cortical areas and in various application fields were published in 2022. Read this blogpost to get an overview of application areas (f)NIRS can be used in, and which devices can be applied. Also, find highlighted publications per category that were performed with our devices in 2022.

The use of Inertial Measurement Unit (IMU) to detect motion artifacts
The use of Inertial Measurement Unit (IMU) to detect motion artifacts

Due to its portability, NIRS and fNIRS devices are often used to measure brain and muscle activity during studies that involve movement. To detect motion artifacts that might occur during these experiments, some of our devices, for instance, Brite and PortaLite MKII, incorporate an inertial measurement unit (IMU). Read this blog post, to learn more about the technology behind IMU and how it is used to detect motion artifacts.

Tissue Saturation Index (TSI) - Absolute oxygenation measure in local tissues
Tissue Saturation Index (TSI) - Absolute oxygenation measure in local tissues

Tissue Saturation Index (TSI) is an absolute measure for the local tissue oxygenation in tissue beneath the sensor. To obtain TSI, a technique called Spatial Resolved Spectroscopy (SRS) is used. TSI can be measured in both brain and muscle. Some of our devices provide the possibility to acquire absolute TSI, next to relative concentration changes in oxy- and deoxygenated hemoglobin. Learn more about the TSI and how to correctly use it in this blogpost.

Guest User
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