Consensus-based recommendations for optical coherence tomography angiography reporting in uveitis

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Uveitis diagnosis and management often rely on imaging techniques.
• Optical coherence tomography angiography (OCTA) provides detailed visualization of retinal vasculature.
• Standardized reporting of OCTA findings in uveitis is lacking.

Purpose of the Study:

• To establish a consensus on the nomenclature for reporting OCTA findings in uveitis.
• To develop standardized terminology for describing OCTA abnormalities in inflammatory eye conditions.

Main Methods:

• A modified Delphi process involving 17 uveitis and retinal imaging specialists.
• Two rounds of electronic questionnaires followed by a virtual face-to-face meeting.
• Consensus defined by >80% agreement, with 'strong consensus' at >90%.

Main Results:

• Agreement on 'wide field' for OCTA images >70° field of view.
• Standardized terms 'flow deficit' and 'non-detectable flow signal' for abnormal flow.
• Defined 'loose' and 'dense' for inflammatory choroidal neovascularisation and a 30% threshold for 'large area' ischaemia.

Conclusions:

• Consensus recommendations for reporting OCTA findings in uveitis were established.
• The proposed nomenclature may enhance consistency in clinical care and research.
• Standardized reporting facilitates clearer communication and comparison of OCTA data in uveitis.