JP2012161426A5

JP2012161426A5 -

Info

Publication number: JP2012161426A5
Application number: JP2011023179A
Authority: JP
Filing date: 2011-02-04
Publication date: 2014-03-20
Anticipated expiration: 2031-02-04

Description

（１）測定光源から発せられた光を二次元的に走査する光スキャナと、測定光源から発せられた測定光と参照光との干渉状態を検出する検出器と、を有し、被検者眼の三次元断層像を得るための光コヒーレンストモグラフィーデバイスと、被検眼の正面観察像を動画像として取得する観察光学系と、前記光コヒーレンストモグラフィーデバイスによって取得された前記三次元断層像を画像処理により解析し、解析結果に基づいて二次元的な分布を示す解析マップを作成する演算解析手段と、前記解析マップと、前記観察光学系によって取得される正面観察像の動画像と同時にモニタに表示する表示制御手段と、を備えることを特徴とする。
（２）（１）の眼科撮影装置において、前記表示制御手段は、前記正面観察像の動画像に対して前記解析マップを重畳して表示することを特徴とする。
（３）（１）又は（２）の眼科撮影装置において、
前記表示制御手段は、解析に用いた三次元断層像からＯＣＴ正面像を生成し、生成されたＯＣＴ正面像と前記観察光学系によって取得される正面像とをマッチングさせることにより前記解析マップと前記正面像との相対位置を調整することを特徴とする。
（４）（１）〜（３）のいずれかの眼科撮影装置において、前記演算解析手段は、前記検出器から出力される干渉信号において被検眼に対応する干渉信号が取得されたことをトリガとして被検眼の断層像に対する解析処理を自動的に開始することを特徴とする。
（５）（１）の眼科撮影装置において、前記演算解析手段は、前記光コヒーレンストモグラフィーデバイスによって取得された前記三次元断層像を画像処理により解析することにより異常部位を特定し、前記表示制御手段は、前記演算解析手段によって特定された異常部位に対応する断層像を前記三次元断層像から抽出し、抽出された断層像と、前記正面観察像の動画像と、前記解析マップと、をモニタに同時に表示することを特徴とする。 (1) An optical scanner that two-dimensionally scans light emitted from a measurement light source, and a detector that detects an interference state between the measurement light emitted from the measurement light source and reference light. An optical coherence tomography device for obtaining a three-dimensional tomographic image of the eye, an observation optical system for acquiring a front observation image of the subject's eye as a moving image, and image processing of the three-dimensional tomographic image acquired by the optical coherence tomography device The analysis analysis means for creating an analysis map showing a two-dimensional distribution based on the analysis result, the analysis map, and a moving image of the front observation image acquired by the observation optical system are displayed on the monitor simultaneously Display control means.
(2) In the ophthalmologic photographing apparatus according to (1), the display control means superimposes and displays the analysis map on the moving image of the front observation image .
(3) In the ophthalmologic photographing apparatus according to (1) or (2) ,
Said display control unit generates an OCT front image from the three-dimensional tomographic image used for the analysis, the said analysis map by matching the front image acquired with the generated OCT front image by the observation optical system and adjusting the relative position of the front image.
(4) In the ophthalmologic photographing apparatus according to any one of (1) to (3), the calculation analysis unit is triggered by acquisition of an interference signal corresponding to the eye to be examined in the interference signal output from the detector. The analysis process for the tomographic image of the eye to be examined is automatically started .
(5) In the ophthalmologic photographing apparatus according to (1) , the calculation analysis unit specifies an abnormal part by analyzing the three-dimensional tomographic image acquired by the optical coherence tomography device by image processing, and the display control unit Extracts a tomographic image corresponding to the abnormal site specified by the arithmetic analysis means from the three-dimensional tomographic image, and monitors the extracted tomographic image, the moving image of the front observation image, and the analysis map. Are displayed simultaneously .

Claims

An optical scanner that two-dimensionally scans the light emitted from the measurement light source; and a detector that detects an interference state between the measurement light emitted from the measurement light source and the reference light. An optical coherence tomography device to obtain original tomographic images,
An observation optical system that acquires a front observation image of the eye to be examined as a moving image;
Analyzing the three-dimensional tomographic image acquired by the optical coherence tomography device by image processing and creating an analysis map showing a two-dimensional distribution based on the analysis result ;
Display control means for displaying on the monitor simultaneously with the analysis map, and a moving image of a front observation image acquired by the observation optical system;
An ophthalmologic photographing apparatus comprising:

The ophthalmologic photographing apparatus according to claim 1.
The ophthalmologic photographing apparatus , wherein the display control means superimposes and displays the analysis map on the moving image of the front observation image .

In the ophthalmologic photographing apparatus according to claim 1 or 2 ,
Said display control unit generates an OCT front image from the three-dimensional tomographic image used for the analysis, the said analysis map by matching the front image acquired with the generated OCT front image by the observation optical system An ophthalmologic photographing apparatus characterized by adjusting a relative position to a front image .

The ophthalmic imaging apparatus according to any one of claims 1 to 3, wherein the arithmetic analysis unit triggers when an interference signal corresponding to the eye to be examined is acquired in the interference signal output from the detector. An ophthalmologic photographing apparatus characterized by automatically starting an analysis process for .

The ophthalmologic photographing apparatus according to claim 1 .
The arithmetic analysis means identifies an abnormal site by analyzing the three-dimensional tomographic image acquired by the optical coherence tomography device by image processing,
The display control unit extracts a tomographic image corresponding to the abnormal site specified by the arithmetic analysis unit from the three-dimensional tomographic image, the extracted tomographic image, the moving image of the front observation image, and the analysis map Are simultaneously displayed on a monitor .