AI-guided deep vein thrombosis diagnosis in primary care: protocol for cohort with qualitative assessment

Kerstin Nothnagel, Alastair Hay, Jessica Watson, Jonathan Banks

Abstract Background Deep vein thrombosis (DVT), a formation of blood clots within deep veins, mostly of the proximal lower limb, has an annual incidence of 1–2 per 1,000. Patients who are affected by multiple chronic health conditions and who experience limited mobility are at high risk of developing DVT. Traditional DVT diagnosis involves probabilistic assessment in primary care, followed by specialised ultrasound scans (USS), mainly conducted in hospitals. The emergence of point-of-care ultrasound (POCUS), coupled with artificial intelligence (AI)-applications has the potential to expand primary care diagnostic capabilities. Aim To assess the accuracy and acceptability of AI-guided POCUS for DVT diagnosis when performed by non-specialists in primary care. Design & setting Diagnostic cross-sectional study coupled with a qualitative evaluation conducted at primary care DVT clinics. Method First, a diagnostic test accuracy (DTA) study will investigate the accuracy of AI-guided POCUS in 500 individuals with suspected DVT, performed by healthcare assistants (HCAs). The reference standard is the standard of care USS conducted by sonographers. Second, after receiving both scans, participants will be invited to complete a patient satisfaction survey (PSS). Finally, semi-structured interviews with 20 participants and 5 HCAs will explore the acceptability of AI-guided POCUS DVT diagnosis. Conclusion This study will rigorously evaluate the accuracy and acceptability of AI-guided POCUS DVT diagnosis conducted by non-specialists in primary care.

DOI

https://doi.org/10.3399/BJGPO.2024.0165

Type

Journal article

Journal

BJGP Open

Issue

BJGP Open 7 August 2024; BJGPO.2024.0165

Publisher

British Journal of General Practice

Publication Date

07/08/2024

Addresses

Kerstin Nothnagel received SPCR Studentship funding (C077)

Keywords

general practice, venous thrombosis, ultrasonography,

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