Meeting Banner
Abstract #2707

Flexible, high spatial and temporal resolution absolute thermometry of MRI phantoms

Wesley Judd1, Seong-Eun Kim2, John Dzikiy3, Dennis L Parker2, and Henrik Odéen2
1Biomedical Engineering, University of Utah, Salt Lake City, UT, United States, 2Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States, 3Psychology Software Tools, Sharpsburg, PA, United States

Synopsis

Keywords: Thermometry/Thermotherapy, Thermometry, Phantom

Motivation: Quantitative Magnetic Resonance Imaging (qMRI) is becoming popular and is often evaluated in phantoms. However, MRI properties (T1, T2, diffusion, etc.) depend on temperature, so accurate absolute temperature measurements of the phantom is needed.

Goal(s): Being able to measure absolute temperature throughout qMRI phantoms in a practical, efficient, and accurate way.

Approach: A straight forward spectroscopic imaging approach is used to image ethylene glycol-filled vials and an automatic processing pipeline reconstructs temperatures.

Results: Rapid (15 s/slice) and accurate (up to 0.5 °C) absolute temperature measurements are demonstrated at two different 3T scanners.

Impact: With the described approach rapid and accurate MRI-based absolute phantom temperature measurements can be acquired in a practical way. This will help researchers developing quantitative measurements of temperature-sensitive parameters such as T1,T2, and diffusion, using phantoms for validation and benchmarking.

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