Related Experiment Video
Updated: Dec 31, 2025
Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
Clinical Implications of Suspended Scattering Particles in Motion Observed by Optical Coherence Tomography
Jaemoon Ahn1, Sangheon Han2, So Min Ahn3
1Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.
Abstract:
The objective of this study was to investigate the relationship between suspended scattering particles in motion (SSPiM) in optical coherence tomography angiography (OCTA) and treatment response in diabetic macular edema (DME). We retrospectively reviewed the medical records of patients diagnosed with DME who had undergone intravitreal injection. The optical density ratio (ODR) of the intraretinal cyst and the numbers of hyperreflective foci from OCT images and SSPiM from OCTA images were compared, and their association with treatment response was analyzed. Forty-five eyes from 45 patients were included in this study. Twenty-four patients were treated with anti-vascular endothelial growth factor, and 21 patients were treated with a steroid. Binary logistic regression model showed that SSPiM in OCTA images was associated with hyperreflective foci numbers (P = 0.038) and mean ODR of the intraretinal cyst (P = 0.006). Linear regression model showed that SSPiM in the inner nuclear layer was related to treatment response (P = 0.006). SSPiM on OCTA images is related to the poor structural response to treatment in DME.
