A Light Weight, Portable EPR Spectrometer for Tissue Oxygenation Measurement
Abstract
The aim of this project is to provide a reliable means to obtain fast, accurate, and repeated measurements of pO2, perfusion, pH, and potentially, nitrio oxide (NO) directly in tissues in patients in the LSTAT (Life Support for Trauma' and Transport) system in order to monitor their status and provide data for their active management. Our approach exploits the capabilities of in vivo EPR techniques to make such measurements. In Phase I we initiated the design studies for adapting our existing technology to a portable configuration and started the construction of a key component for the proposed use: the catheter/needle probe which will enable us to make the desired measurements at various depths as required for this use, using an EPR frequency of 0.5 to 1.2 GHz. During Phase II we will complete the design and then construct a spectrometer suitable for the described purposes. We also will adapt the existing techniques for measuring pO2, pH, effective perfusion, and NO, to the needs and constraints for making these measurements in patients within the LSTAT system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1995
- Accession Number
- ADB231094
Entities
People
- Peter J. Kannam