In Artinis NIRS blog, you will find the latest trends in (f)NIRS, NIRS studies and applications, tutor from the leaders of near infrared spectroscopy, not to mention detailed insights and tips and tricks for your research!
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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) 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.
Measuring brain and muscle oxygenation simultaneously using only one device
Interest and importance of simultaneously measuring brain and muscle oxygenation is increasing in various research fields. Our new device, the PortaLite MKII assessment of oxygenation of different tissues and locations by using only one device. Read more about the PortaLite MKII, application possibilities, and features in this blog post.
The PROHEALTH Project – Investigating orthostatic hypotension in elderly by performing continuous NIRS measurements in a home-based setting
Orthostatic hypotension is a form of low blood pressure that is characterized by drops in blood pressure when standing up from a lying or sitting position and frequently occurs in elderly subjects. The PROHEALTH project aims to implement home-based and continuous Near-Infrared-Spectroscopy (NIRS) measurements to detect orthostatic hypotension using the PortaLite (MKII). Read this blog post more about the PROHEALTH project and which targets are followed to reach the goal.
2021 Publication overview with Artinis Near-Infrared Spectroscopy (NIRS) devices
More than 110 papers using our (f)NIRS devices in neuro- and sports science areas were submitted last year. This blog post gives an overview of all papers published in 2021 using Artinis (f)NIRS devices for different application fields/categories, including cortical brain research, sport science, clinical and rehabilitation, hypoxia research, hyperscanning and multimodality.
Non-invasive evaluation of the endothelial and microvascular dysfunction induced by COVID-19
To provide professional intensive care specifically fit to cure COVID-19, hospitals need the appropriate space and equipment. Health care professionals have been working with limited resources in extreme environments but knowledge and experience is rapidly expanding. Several institutes have been implementing NIRS to study the endothelial and microvascular dysfunction to support the development of targeted and individualized therapies.
How to: Start a measurement and do a short analysis
If you don’t have time to read our extensive manuals, but would still like some quick pointers on how to start a measurement with one of our state of the art fNIRS devices… you’re in the right place! In this blog we will get you set-up in no time and discuss some of the analysis options our proprietary software, OxySoft, offers.
How to clean your Artinis NIRS systems and accessories?
COVID-19 has had a major impact on all of us. For a while, Universities were closed and research was put on hold. Now slowly but surely, we are going back to the labs and starting our experiments again. NIRS experiments include contact with patients and research participants, we therefore find it important to inform you about how to clean the Artinis NIRS devices.
Artinis Literature Overview 2019 - Brain research
We are very proud to see our equipment used in a wide range of scientific research and continue to be inspired by the bright scientists who are our customers. Perhaps the biggest takeaway from all the publications last year is the fact that NIRS is no longer navel-gazing as a research field on its own, but it has reached out and found a new audience as a versatile research application that, even more than fMRI, is being used in more and more parallel fields. Here, we highlight some of the noteworthy elements of 2019’s publications.
Artinis Literature Overview 2019 - Exercise physiology
From a classical perspective, we at Artinis separate the publications into the domain of functional brain monitoring and muscle research. ‘Brain’ - and ‘Sports’ people. This review will highlight a handful of publications in the domain of movement science published in 2019’s.
Submersible NIRS: a very wet lab...
In 2016 dr. Chris McKnight approached Artinis with the idea to measure NIRS under water on wild animals. Initially there was some skepticism, since our devices are not intended to be taken underwater, let alone on a wild animal. However, we really liked the challenge and together with the Sea Mammal Research Unit (SMRU) of the University of St. Andrews we created a submersible NIRS-sensor specifically for the seals.
How NIRS is used in brain-computer interfaces
Imagine a person wearing a Brite and playing a demanding video game. This video game is difficult, and the mental workload is increasing drastically. Changes in blood volume, or hemodynamic changes, which are associated with the increase in workload is registered using the Brite. This blog will expand on how a NIRS-based BCI works and what researchers have made possible using NIRS-based BCI.