Patent ID: 9163930
Filing Date: 2015-10-20
Classification: A61B,G01B

Abstract:
1. An extended depth Fourier Domain OCT (FDOCT) imaging system, the system comprising: an optical source having a bandwidth; an optical detection system configured to sample a plurality of spectral elements within the bandwidth of the optical source at an average optical frequency interval defined by a ratio of a total sampled bandwidth divided by a number of sampled plurality of elements, wherein the average optical frequency interval is no greater than about 10.7 GHz; a reference arm coupled to the optical detection system; a sample arm coupled to the reference arm; an optical combiner configured to couple the reference arm and the sample arm to the optical detection system, wherein the sample arm includes scanning optics to enable imaging of regions of interest within a subject under test; wherein the reference arm includes a plurality of discrete reference arm path length settings that correspond to a plurality of path length matching conditions between the reference arm path length and the sample arm path length as measured to a corresponding plurality of regions of interest within a subject; wherein the FDOCT imaging system is configured to acquire a sequence of at least two, two dimensional images of a plurality of regions of interest along an axis of the subject; and wherein successive images include at least two partially non-overlapping axially displaced regions of the subject under test.