Preliminary Design and Evaluation of a B-Scan OCT-Guided Needle

• Main Authors: Karen M. Joos, Jin-Hui Shen
• Format: Article
• Language: English
• Published: MDPI AG 2014-09-01
• Series: Photonics
• Subjects: optical coherence tomography; image-guided needle; forward-imaging probe; ophthalmic device; ophthalmology
• Online Access: http://www.mdpi.com/2304-6732/1/3/260

Real-time intraoperative B-scan optical coherence tomography (OCT) visualization of intraocular tissues is a desired ophthalmic feature during retinal procedures. A novel intraocular 25-gauge B-mode forward-imaging OCT probe was combined with a 36-gauge needle into a prototype instrument. Imaging of the needle tip itself and the effects of saline injection into a gelatin phantom were performed. A combined B-scan forward-imaging OCT-needle prototype was capable of real-time-imaging of saline injection into a gelatin phantom. Additional future miniaturization may permit this instrument to be an adjunctive real-time imaging and procedure tool for vitreoretinal surgery.