Standardized display of optical coherence tomography imaging data
AssigneeCarl Zeiss Meditec AG
InventorsScott A. Meyer, Paul F. Stetson
Life of this patent
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Abstract
Systems and methods for efficiently displaying large volumes of medical imaging data using pre-defined dynamic displays to illustrate key anatomic features are described. In a preferred embodiment, one or more pulse files comprising en face images of sub sections of the volume are displayed sequentially to the user in a playback loop. These displays can aid in navigation of data for review and future data acquisition. Additional images generated from the data can be displayed next to or overlaid on the pulse files.
Claims25
A method of displaying 3-D image data of an eye of a patient acquired with an optical coherence tomography (OCT) system, said system including a radiation beam that is scanned in X and Y directions over the eye and generating a 3-D data set corresponding to the distribution of reflection sites within the eye, said method comprising:
- identifying a reference surface within the eye from the 3-D data set;
- dividing the data into multiple sections ranging from the reference surface along a Z axis roughly perpendicular to one of the X and Y scanning directions or the reference surface;
- for each section, assigning a single intensity value at each of a plurality of X and Y positions representative of the data along the Z-axis;
- generating a 2-D image of the single representative values for each section;
- and
- displaying the generated 2-D images sequentially.
A method of displaying 3-D image data of an eye of a patient acquired with an optical coherence tomography (OCT) system, said system including a radiation beam that is scanned over the eye and generating a 3-D data set corresponding to the distribution of reflection sites within the eye, said method comprising:
- defining a region of data between two spaced apart boundaries within the 3D set;
- dividing the region into a plurality of slabs of data extending between the boundaries;
- at each transverse location within each slab, assigning a single value representative of the intensity across the thickness of the slab;
- for each slab, generating a 2-D image composed of the single representative intensity values at each of the transverse locations;
- and
- displaying the generated 2-D images automatically in sequence.
A system for collecting and displaying optical coherence tomography (OCT) image data comprising:
- a light source arranged to generate a beam of radiation;
- a beam divider for separating the beam along a sample and reference arm;
- optics for scanning the beam in the sample arm over a set of transverse locations on a sample;
- a detector for measuring light returning from the sample and the radiation returning from the reference arm, and generating a set of output signals in response thereto;
- a display;
- and
- a processor for converting the set of output signals into 3D OCT image data, said processor defining a region of data between two spaced apart boundaries within the 3D data and dividing the region into a plurality of slabs of data extending between the boundaries, said processor assigning a single value representative of the intensity across the thickness of the slab for each transverse location in the slab, said processor generating a 2-D image for each slab composed of the single representative intensity values at each of the transverse locations and causing said generated 2-D to be sequentially displayed on said display.
Dependencies are inferred from the claim text.