June 18, 2020

Brain MRI findings in severe COVID-19

By: Judy Mathias

Editor's Note

In this retrospective study, researchers from the French Society of Neuroradiology found three main brain MRI patterns in patients with severe COVID-19.

The analysis of 37 patients from 16 centers found:

Sponsored Message

  • signal abnormalities in the medial temporal lobe (43%), an area of the brain related to cognitive and emotional functions
  • non-confluent multifocal white matter hyperintense lesions on FLAIR [fluid-attenuated inversion recovers] and diffusion sequences with associated hemorrhagic lesions (30%), which closely resemble chronic disorders that destroy fatty protective nerve coverings
  • extensive and isolated white matter microhemorrhaging (24%).

The presence of hemorrhage was frequent, and the detection was of clinical importance because it was associated with worse respiratory, neurological, and biological status.

However, the researchers note, SARS-CoV-2 was only detected in the cerebrospinal fluid of one patient, and the underlying mechanisms of brain involvement remain unclear.


Sign Up For OR a.m.
Sign up for the free OR a.m. eLetter to get news like this in your inbox every morning!

OR Manager Jobs
Live chat by BoldChat