ArticleBiomedical optics express2019
Analysis and evaluation of BC-mode OCT image visualization for microsurgery guidance.
Article in Biomedical optics express, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Towards Autonomous Retinal Microsurgery Using RGB-D Images.IEEE robotics and automation letters · 2024Article
- OCT-guided Robotic Subretinal Needle Injections: A Deep Learning-Based Registration Approach.Proceedings. IEEE International Conference on Bioinformatics and Biomedicine · 2022Article
- Higher-order regression three-dimensional motion-compensation method for real-time optical coherence tomography volumetric imaging of the cornea.Journal of biomedical optics · 2022Article
- Stabilizing the phase of swept-source optical coherence tomography by a wrapped Gaussian mixture model.Optics letters · 2021Article
- Real-time tool to layer distance estimation for robotic subretinal injection using intraoperative 4D OCT.Biomedical optics express · 2021Article
- Demonstration of Optical Coherence Tomography Guided Big Bubble Technique for Deep Anterior Lamellar Keratoplasty (DALK).Sensors (Basel, Switzerland) · 2020Article
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Authors and funding
3 authors.
Funding
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Abstract
Optical coherence tomography (OCT) has been gaining acceptance in image-guided microsurgery as a noninvasive imaging technique. However, when using B-mode OCT imaging, it is difficult to continuously keep the surgical tool in the imaging field, and the image of the tissue beneath the tool is corrupted by shadow effects. The alternative using C-mode OCT imaging is either too slow in imaging speed when operating in a high-resolution mode, or provides a poor image resolution in a high-speed mode, with the sweep rate less than one million hertz. Moreover, the 3-dimensional rendering of C-mode OCT image makes it difficult to visualize the tissue structure and track the surgical tool beneath the tissue surface. To solve these problems, we propose a BC-mode OCT image visualization method. This method uses a sparse C-scanning scheme, which provides a set of high-resolution B-mode OCT images at sparsely spaced cross sections. The final BC-mode OCT image is obtained by averaging the image set, with inter frame variance processing to enhance the signal of the surgical tool and tissue layers. The performance of BC-mode OCT images, such as image resolution, signal to noise ratio (SNR), imaging speed, and surgical tool tracking accuracy, is analyzed theoretically and verified experimentally. The feasibility of the proposed method is evaluated by guiding the insertion of a 30-gauge needle into the cornea of an ex-vivo human eye freehand. The results show that this provides better visualization of both the surgical tool and the tissue structure than the conventional B- or C- mode OCT image.
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Registered trials
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