title: Flexible miniature compound lens design for high-resolution optical coherence tomography balloon imaging catheter.
abstract: We report on a new optics design for an optical coherence tomography (OCT) balloon imaging catheter. The design involves a miniature compound gradient-index (GRIN) rod lens, which consists of a fiber optic mode-field reducer and relay rod lenses to achieve predictable high lateral resolution at a desired large working distance. The compound lens design significantly simplifies the engineering process for an OCT catheter and enables 3-D full circumferential cross sectional imaging of large luminal organs such as human esophagus. An as-designed OCT catheter is developed and demonstrated for real-time in vivo swine esophagus imaging in a 3-D spiral fashion.
authors.affiliation: University of Washington, Department of Bioengineering, Seattle, Washington 98195, USA.
authors.forename: Henry L
authors.initials: HL
authors.lastname: Fu
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Leng
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Cobb
authors.forename: Kevin
authors.initials: K
authors.lastname: Hsu
authors.forename: Joo Ha
authors.initials: JH
authors.lastname: Hwang
authors.forename: Xingde
authors.initials: X
authors.lastname: Li
mesh_terms: D002404:Catheterization / Q000295:instrumentation*; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020701:Esophagoscopes; D007089:Image Enhancement / Q000295:instrumentation*; D007909:Lenses; D008904:Miniaturization; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D041623:Tomography, Optical Coherence / Q000295:instrumentation*