Abstract #4430

A Novel MRI Based Electrical Properties Measurement Technique

Volkan Acikel¹,², Oytun Ulutan³, Ali Caglar Ozen,²³, Burak Akin², Yigitcan Eryaman⁴,⁵, Ergin Atalar,²³

¹Electrical and Electronics Engineering, Bilkent University , Ankara, Turkey; ²National Magnetic Resonance Research Center (UMRAM), Ankara, Turkey; ³Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey; ⁴Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, United States; ⁵Martinos Center for Biomedical Imaging, MGH, Charlestown, MA, United States

Most of the Magnetic Resonance Imaging studies require accurate knowledge of electrical properties of the phantoms. There are several techniques for measuring electrical properties of phantoms but there is lack of accuracy analysis. A new method to measure electrical properties of gel phantom was proposed based on the lead tip heating phenomena and used for verification of home made coaxial transmission line measurement fixture. Electrical properties of 3 different gel phantoms were measured using both methods and results are compared. Although the proposed method requires long MRI experiment, it can be used for verification of other electrical properties measurement techniques.