Meeting Banner
Abstract #3864

In situ determination of pH in brain tissue using postmortem 1H-MRS

Sabina Frese1, Dominic Gascho2, Michael Thali2, Sebastian Kozerke1, and Niklaus Zölch2,3
1Institute for Biomedical Engineering, ETH Zürich, Zürich, Switzerland, 2Institute for Forensic Medicine, University of Zurich, Zürich, Switzerland, 3University Hospital for Psychiatry, University of Zurich, Zürich, Switzerland

Synopsis

Keywords: Spectroscopy, SpectroscopyPostmortem, relatively low pH values have been described and reported to be dependent on the cause of death and the duration of the agonal phase. Using 1H-MRS on decedents and subsequent control pH measurements in collected samples, we investigated to what extent the pH dependence of peak positions of acetate and lactate are suitable to detect such low pH values non-invasively. We found that the measured chemical shift of acetate and corresponding pH value follow a simulated titration curve. Hence, acetate is a promising candidate to detect low postmortem brain pH for forensic investigations.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords