Angular range, sampling and noise considerations for inverse light scattering analysis of nuclear morphology

Area of Science:

• Biomedical Optics
• Medical Imaging
• Cancer Diagnostics

Background:

• Angle-resolved elastic scattering analyzes nuclear morphology in tissues.
• Angle-resolved low-coherence interferometry (a/LCI) successfully identifies nuclear alterations linked to dysplasia.
• Optical biopsies are limited by collecting only a fraction of the 4π scattering field.

Purpose of the Study:

• To comprehensively characterize the diagnostic impact of angular sampling, range, and noise in inverse light scattering analysis of nuclear morphology.
• To apply these findings to a scanning a/LCI system.
• To inform the design of next-generation optical biopsy probes.

Main Methods:

• Utilized a dataset from 40 patients undergoing a/LCI optical biopsy for cervical dysplasia.
• Analyzed the diagnostic utility of variations in angular sampling, range, and noise.
• Applied results to a benchtop scanning a/LCI system.

Main Results:

• Variations in angular sampling, range, and noise significantly impact the diagnostic utility of inverse light scattering analysis.
• The study identified key parameters for optimizing diagnostic information from limited angular sampling.
• Findings are directly applicable to refining a/LCI system design.

Conclusions:

• Optimizing angular sampling, range, and noise is crucial for maximizing diagnostic information in optical biopsies.
• This research provides essential insights for developing more effective next-generation optical biopsy probes.
• The study enhances the diagnostic capabilities of a/LCI for cervical dysplasia detection.