JP2016010658A5

JP2016010658A5 -

Info

Publication number: JP2016010658A5
Application number: JP2014135024A
Authority: JP
Filing date: 2014-06-30
Publication date: 2017-07-27
Anticipated expiration: 2034-06-30

Claims

An optical coherence tomography apparatus for detecting tomographic image data of an eye to be examined by detecting an OCT signal by measurement light and reference light irradiated to the eye to be examined, and processing the OCT signal,
An acquisition means for acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined;
Arithmetic processing means for processing the plurality of OCT signals acquired by the acquiring means to acquire motion contrast data in the eye to be examined;
Analysis processing means for processing the motion contrast data, obtaining blood vessel position information, and obtaining analysis information about the blood vessel based on the position information;
An optical coherence tomography apparatus comprising:

The optical coherence tomography device of claim 1 ,
The acquisition means scans measurement light at a plurality of different crossing positions on the eye to be examined, acquires an OCT signal for acquiring three-dimensional functional OCT image data in the XY directions,
The arithmetic processing means processes the plurality of OCT signals acquired at a plurality of positions on the eye to be examined, acquires three-dimensional functional OCT image data as the motion contrast data in the eye to be examined,
The analysis processing means processes the three-dimensional function OCT image data as the analysis information, acquires the analysis information related to blood vessels for each position of the eye to be examined, and based on the three-dimensional function OCT image data. The OCT function front image data, which is front image data in a predetermined depth region of the test object, is acquired, and the OCT function front image data and the analysis information are output in a comparable manner. Optical coherence tomography device.

The optical coherence tomography device according to claim 1 or 2 ,
The acquisition means scans measurement light at a plurality of different crossing positions on the eye to be examined, acquires an OCT signal for acquiring three-dimensional functional OCT image data in the XY directions,
The arithmetic processing means processes the plurality of OCT signals acquired at a plurality of positions on the eye to be examined, acquires three-dimensional functional OCT image data as the motion contrast data in the eye to be examined,
The analysis processing means processes the three-dimensional function OCT image data as the analysis information, acquires the analysis information about blood vessels for each position of the eye to be examined, and the three-dimensional function OCT image data; An optical coherence tomography apparatus, wherein the analysis information is displayed so as to be comparable.

In the optical coherence tomography apparatus according to any one of claims 1 to 3 ,
The analysis processing means detects layer information from an OCT signal acquired to acquire the three-dimensional functional OCT image data, and shows an analysis map indicating a two-dimensional distribution related to layer thickness information of the retinal layer of the eye to be examined Get
An optical coherence tomography apparatus that outputs the analysis information and the analysis map in a comparable manner.

An optical coherence tomography calculation method for detecting tomographic image data of an eye to be examined by detecting an OCT signal by measurement light and reference light irradiated to the eye and processing the OCT signal,
An acquisition step for acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined;
An arithmetic processing step of processing the plurality of OCT signals acquired by the acquiring step to acquire motion contrast data in the eye to be examined;
An analysis processing step of processing the motion contrast data, acquiring position information of a blood vessel, and acquiring analysis information about the blood vessel based on the position information;
An optical coherence tomography calculation method comprising:

Executed in a control device that controls an operation of an optical coherence tomography device that detects an OCT signal by measurement light and reference light irradiated to the eye and processes the OCT signal to acquire tomographic image data of the eye to be examined. An optical coherence tomography calculation program,
By being executed by the processor of the control device,
An acquisition step for acquiring a plurality of OCT signals that are temporally different with respect to the same position on the eye to be examined;
An arithmetic processing step of processing the plurality of OCT signals acquired by the acquiring step to acquire motion contrast data in the eye to be examined;
An analysis processing step of processing the motion contrast data, acquiring position information of a blood vessel, and acquiring analysis information about the blood vessel based on the position information;
Is executed by the optical coherence tomography apparatus.