Covid19, Stroke, Acute, Stroke Hemorrhagic, Stroke, Ischemic
Conditions
Keywords
COVID, stroke, CT, CTA
Brief summary
Multi-centre prospective study evaluating computed tomography angiography studies performed for stroke patients as a diagnostic and prognostic imaging biomarker.
Detailed description
Diagnosis of coronavirus disease 2019 (COVID-19) relies on clinical features and reverse-transcriptase polymerase chain reaction (RT-PCR) testing. The latter is constrained by limited sensitivity and a timescale of hours to yield results, with no point-of-care test widely available. A dedicated computed tomography study of the chest is likely to be more sensitive than RT-PCR for COVID-19. Carotid computed tomography angiography (CTA) is a routine acute stroke investigation and includes the lung apices. We aim to assess the lung apices on CTA for ground glass opacification and compare this with COVID-19 RT-PCR test results and clinical outcome measures.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
All adult patients presenting with clinical features of acute ischaemic stroke undergoing investigation with computed tomography angiography at presentation.
Exclusion criteria
Poor image quality. No radiologist report available. Computed tomography angiography performed in a non-acute setting.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accuracy of the computed tomography angiography biomarker relative to the COVID-19 RT-PCR test | 1 month | Defined by sensitivity, specificity, positive and negative predictive values |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Prognostic value of the computed tomography biomarker | 1 month | Defined by its relationship with 30 day mortality and modified rankin scale following treatment |
Countries
United Kingdom