Imaging the Nigrosome 1 in the Substantia Nigra using Susceptibility Weighted Imaging and Quantitative Susceptibility Mapping: An Application to Parkinson's Disease

In conclusion, the N1 sign can be consistently visualized using tSWI with a resolution of at least 0.67 × 0.67 × 1.34 mm3 and can be seen in 95% of HCs.
Source: NeuroImage: Clinical - Category: Radiology Source Type: research