ArticleMagnetic resonance in medicine2026
OxyTrack: A Novel Needle Sensor for In Situ Oximetry.
Article in Magnetic resonance in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- First Clinical-Scale Use of a Percutaneous EPR Oxygen Probe (OxyTrack) for Deep-Tissue pOMagnetic resonance in medicine · 2026Article
- Real-Time Monitoring of Tissue Oxygenation During Hyperbaric Oxygen Exposure Using In Vivo EPR Oximetry.Magnetic resonance in medicine · 2026Article
- Combining Oxygen-Enhanced MRI and Electron Paramagnetic Resonance Oximetry for Quantitative OE-MRI (qOE-MRI) as a Method for Mapping Absolute Oxygen Levels (pOMagnetic resonance in medicine · 2026Article
- A Flexible RF Coil Design (OxyTrack) for Oxygen Measurements in Body Cavities.Magnetic resonance in medicine · 2026Article
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Authors and funding
9 authors.
Funding
Abstract
purposeIn vivo electron paramagnetic resonance (EPR) oximetry is a powerful method for tissue oxygen measurements. OxyChip is an implantable probe that is widely used in animal models and currently being evaluated for use in human subjects. The OxyChip requires an external resonator (RF coil) capable of sufficient depth sensitivity, preferably up to 4 cm or more, which is a limitation for existing resonators. The goal of present study was to develop a novel sensor/device, called OxyTrack, for deep-tissue oximetry.
methodsSeveral OxyTracks consisting of coax-tip micro-loop resonator embedded with OxyChip were designed using various needles (0.5-1 mm outer diameter; 3-17 cm length) and tested using an L-band continuous wave EPR spectrometer.
resultsThe OxyTrack showed high signal-to-noise ratio (SNR) at low RF powers, for example SNR of 86 at 45-nW incident power. The orientation of the sensor with respect to the magnetic field (B
conclusionThe OxyTrack technology represents a significant advancement in the practice of EPR oximetry for in situ monitoring of deep-tissue oxygenation.
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Registered trials
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