Susceptibility Weighted Imaging and Mapping (SWIM)

Microhemorrhages are one of the most common results of TBI. With more powerful magnets and SWI/MR (Susceptibility Weighted Imaging), these micro hemorrhages can be identified. Taking it to another level, a program called SWIM (Susceptibility Weighted Imaging and Mapping) has been developed along with a Quantitative Susceptibility Mapping (QSM).

One of the problems with SWIM is distinguishing between microhemorrhages and veins. These two programs substantially raise the accuracy of the identification of microhemorrhages. They can be done in a semi-automated manner with reasonable sensitivity and specificity. (Liu J. et al., 2015)