2022/08/03 by Anders Dyhr Sandgaard, Noam Shemesh, Sandgaard, Anders Dyhr +5 · 1 citation
Engineering · Medicine · Physics and Astronomy · #Advanced MRI Techniques and Applications #Biological Physics (physics.bio-ph) #FOS: Physical sciences #Medical Physics (physics.med-ph) #Non-Destructive Testing Techniques #Nuclear Physics and Applications
paper · pdf · doi:10.48550/arxiv.2208.01906
openalex publication_date 2022/08/03 · openalex created_date 2022/10/04 · openalex updated_date 2026/07/28
Estimating magnetic susceptibility using MRI depends on inverting a forward relationship between the susceptibility and measured Larmor frequency. However, an often-overlooked constraint in susceptibility fitting is that the Larmor frequency is only measured inside the sample, and after background field removal, susceptibility sources should only reside inside the same sample. Here we test the impact of accounting for such effects in susceptibility fitting and demonstrate that such effects should not be ignored.