Abstract #4997

Monitoring Temperature using Gradient Echo Imaging at 0.5T

Diego F Martinez¹, Chad T. Harris², Curtis N. Wiens², Will B. Handler¹, and Blaine A. Chronik^1,3

¹The xMR Labs, Physics and Astronomy, Western University, London, ON, Canada, ²Research and Development, Synaptive Medical, Toronto, ON, Canada, ³Medical BioPhysics, Western University, London, ON, Canada

Synopsis

Keywords: Thermometry, PhantomsGradient Echo Proton Resonant Frequency (GRE-PRF) based thermometry, a standard approach to temperature mapping, was assessed at 0.5T. Experiments were performed using a 3 slice GRE acquisition at a resolution of 2x2x5mm and an update rate of 7.7s. Phantom and in-vivo measurements of the temperature stability yielded uncertainties of 0.78°C and 1.48°C respectively. Furthermore, a cooling experiment with the phantom showed excellent agreement to temperature changes simultaneously measured with a temperature probe. All results suggest that GRE-PRF thermometry is feasible at 0.5T.

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.