Do the Magic Angle Effects or Susceptibility Effects Affect the Visualization of Nigrosome 1?

摘要

I read with great interest the recently published article by Arai et al1 in the American Journal of Neuroradiology. In this article, the authors claimed that the asymmetric visualization of nigrosome 1 is affected by the magic angle and susceptibility. They also suggested that these challenges in visualization are caused by the anatomic slant structure of nigrosome 1. For proper assessment of nigrosome 1 on MR imaging, it is of the utmost importance that researchers should be familiar with its anatomy and obtain high-spatial-resolution imaging to reduce partial-volume effects. In this regard, I am concerned about the methods used by the authors of this article.