Abstract #3656

Comparison of quantitative susceptibility mapping methods for evaluating cerebral microbleeds at 3T and 7T

Yicheng Chen¹, Clare B Poynton², Suchandrima Banerjee³, and Janine M Lupo²

¹UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, Bekeley and University of California, San Francisco, San Francisco, CA, United States, ²Department of Radiology, University of California, San Francisco, ³Global Applied Science Laboratory, GE Healthcare

There is a growing interest in using QSM to detect and quantitatively evaluate cerebral microbleeds (CMBs). We compared several algorithms proposed in recent years for QSM on patients with CMBs after radiation therapy at 3T and 7T by quantitatively analyzing the noise and contrast of the susceptibility maps. Although RESHARP+ iLSQR had the least noise among methods, CMB and vessel contrast were more affected by incomplete background field removal, especially at 7T.

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