Jaladhar Neelavalli1,2, Yu-Chung Norman Cheng3, Mudassar Kamran2, James V. Byrne2, Ewart Mark Haacke3
1The MRI Institute for Biomedical Research, Detroit, MI, United States; 2Nuffield Department of Surgery, University of Oxford, Oxford, Oxfordshire, United Kingdom; 3Academic Radiology, Wayne State University, Detroit, MI, United States
We utilize a Fourier based method of quantifying the magnetic susceptibilities of arbitrarily shaped objects with medium sizes in a phantom. The method uses the phase images and an iterative 3D least-squares fitting algorithm. The quantified susceptibility has an 11% uncertainty, which is due to the pixelization (or systematic) error.