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Impact Of Penetration And Image Analysis In Optical Coherence Tomography On The Measurement Of Choroidal Vascularity Parameters by Sisi Chen; Gu Zheng; Xiangle Yu; Yanfeng Jiang; Zhiyang Lin; Guangqing Lin; Wen Chen; Meixiao Shen; Fan Lu is a Medicine article available to read on EtoBox.
What is Impact Of Penetration And Image Analysis In Optical Coherence Tomography On The Measurement Of Choroidal Vascularity Parameters about?
## Purpose: To investigate the impact of penetration and image analysis in different optical coherence tomography (oct) instruments on the measurement of choroidal vascularity parameters. ## Methods: Twenty-three healthy volunteers were imaged using two swept-source octs and one spectral-domain oct. a fully automatic segmentation method based on resnet-unet and niblack local threshold binarization was performed to quantify the relevant choroidal vascular parameters, including choroidal vascularity index, total choroidal volume, and luminal volume. the intraclass correlation coefficient (icc) and coefficient of repeatability (cor) were used to analyze the repeatability and consistency of automatic and manual segmentation, respectively. ## Results: Both swept-source oct devices showed good consistency of luminal volume and total choroidal volume measurements (all icc value >0.98 with cor% < 8.53%) based on manual segmentation, whereas the consistency of the spectral-domain oct was lower (icc value 40%), which was greatly improved after using the automatic algorithm (icc value >0.99 with cor% 0.85), whereas the choroidal vascularity index measurement from the spectral-domain oct wa
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- Author
- Sisi Chen; Gu Zheng; Xiangle Yu; Yanfeng Jiang; Zhiyang Lin; Guangqing Lin; Wen Chen; Meixiao Shen; Fan Lu
- Published
- 2022
- Language
- EN
- Field
- Medicine (Health Sciences)