The susceptibility blooming effect at high field MR: Quantitative evaluation of its dark glow dependence

Susceptibility blooming effect in MRI refers to signal loss due to local field inhomogeneity that is larger than the actual size of the material that caused it. This phenomenon is more pronounced at gradient echo T2* imaging and higher field strength MR, which has great potential in detection of cerebral microbleeds or ultra-small structures or lesions with iron component (e.g. amyloid plaques). This presentation will provide quantitative information of blooming effects (i.e. size changes) that are dependent on (1) field strength, (2) pulse sequence, (3) iron concentration, (4) imaging parameters, (5) image post-processing (i.e. SWI).

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