Source: Centre for Health Solutions – Kenya (CHS) // Location: Kenya

Introduction

The National TB Program of Kenya received eight Delft Light ultra-portable X-ray machines with CAD4TB through USAID’s iNTP. These were deployed in seven counties and integrated into Kenya’s TB-targeted outreach programs.

Intervention
  • In 2022-2023, the outreach program reached 15,916 people: 55% were male, and 56% had TB symptoms.
  • People with CAD4TB scores ?60 were sent for GeneXpert testing (5% or 793 individuals). An additional 5% with CAD4TB scores between 40-59 were tested based on clinician judgment.
Result
  • TB positivity was high among those with high CADTB scores: 28% (163) had TB confirmed by GeneXpert, and nearly 30% (47) were asymptomatic.
  • TB positivity was 6% for CAD4TB scores of 40-60/
  • Before introducing CAD/AI-enabled X-rays, the TB positivity rate was low (5-10%).
Conclusion
  • Using Delft Light and CD4TB proved to be a more cost-effective approach for reducing GeneXpert tests in outreach settings.
  • These tools effectively identified individuals for further CAD4TB scores. This underscores the effectiveness of AI-enhanced CXR in early TB detection through community-based screening.
  • We recommend expanding this technology to improve TB detection in Kenya.

REFERENCE: Krisa, R. et al (2024, November 12-16). Enhancing TB detection through integrating computer-aided detection (CAD) software in chest radiography: Findings from targeted outreach programs in Kenya [Presentation]. The Union World Conference on Lung Health, Bali, Indonesia.