Have doctors found the key to diagnosing long COVID?
In their case report, US doctors say a brain PET scan could be key to confirming the common condition
![Transverse view of PET. Non-specific scattered areas of low-level hypometabolism are present at the bilateral frontal, left precuneus, occipital and parietal regions. Notably, the gyrus rectus is spared. Source: BMJ Case Reports.](https://www.ausdoc.com.au/wp-content/uploads/2022/08/One-time-Post-COVID-syndrome_BMJ-1.jpg)
Brain PET scans could be a useful screening test for post-acute COVID-19, according to US doctors in a case report of a patient who had persistent symptoms for nine months.
The middle-aged patient who was finally found to have long COVID — estimated to affect 10-30% of people infected with SARS-CoV-2 — contracted the virus at work in December 2020.