Alterations in F-18 fluorodeoxyglucose PET/MRI and O-15 water PET brain findings in patients with neurological symptoms after COVID-19 vaccination: A pilot study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20210902006

Enrollment

Registered

2021-09-02

Start date

2021-04-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

functional abnormalities in the brain of patients with neurological side effects following COVID-19 vaccination Immunization stress-related responses, COVID-19, stress, O-15 water, PET/MRI, FDG

Interventions

Patients who experienced neurological symptoms

Diagnostic

Neurological symptoms group

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: neurological symptoms after the first COVID-19 vaccination underwent CT, MRI, F-18 FDG PET/MRI and O-15 water PET of the brain. After 7 days, each patient underwent a follow-up F-18 FDG PET/MRI and O-15 water PET of the brain.

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
Metabolic pattern 1st visit and 7 day after Quantitative and visual	—

Secondary

Measure	Time frame
Perfusion abnormality 1st visit and 7 day after Quantitative and visual	—

Countries

Thailand

Contacts

Public ContactDheeratama Siripongsatian

Chulabhorn Hospital

Dheeratama.sir@cra.ac.th0809262298

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026