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Method and device for obtaining optic disc area from ophthalmic optical coherence tomography images

An optical coherence tomography and scanning image technology, applied in the field of medical imaging, to avoid the problem of uneven curves and large errors, simple operation, and ensure the effect of effectiveness

Active Publication Date: 2016-03-02
CHONGQING BIO NEWVISION MEDICAL EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, unfortunately, there is no relatively simple and effective method to obtain accurate fundus optic disc area

Method used

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  • Method and device for obtaining optic disc area from ophthalmic optical coherence tomography images
  • Method and device for obtaining optic disc area from ophthalmic optical coherence tomography images
  • Method and device for obtaining optic disc area from ophthalmic optical coherence tomography images

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Embodiment Construction

[0027] An embodiment of the present invention provides a method for obtaining the optic disc area from an ophthalmic optical coherence tomography image, including the following steps: S101, performing multiple conversions on the optic disc reference points of multiple optical coherence tomography OCT images of the optic disc, and then fitting them into an initial optic disc Boundary circle; S102, after the user presses the right mouse button to move and release the right mouse button to the k-th video disc reference point, by judging that the current mouse pointer is within the movement range of the k-th video disc reference point and within the range of the k-th video disc reference point The movement range of the optic disc diameter line where the k-th optic disc reference point is located, the coordinates after the movement of the k-th optic disc reference point are calculated and recorded in the storage container, and the k-th optic disc reference point is obtained after mul...

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Abstract

The invention discloses a method and device for obtaining the optic disk area through ophthalmic optics coherence tomography images. The precise optic disk area is fast to obtain through the simple method and used for clinical analysis. The method comprises the steps that S101, the optic disk initial boundary circle is fitted after conversion is carried out on optic disk reference points of the multiple OCT images of an optic disk part many times; S102, moved coordinates of the k optic disk reference point are obtained through calculation and recorded into a storage container; S103, according to the moved coordinates of the k optic disk reference point, a refitted optic disk boundary circle is obtained by fitting the optic disk boundary circle; the S102 and the S103 are repeated, and all the optic disk reference points are moved to the correct position; S104, the area of the refitted optic disk boundary circle is calculated. The operation of selecting the optic disk reference points needing to be corrected is simple and accurate, the optic disk reference points found through the algorithm can be corrected to the accurate positions fast and conveniently, and accurate parameters like the optic disk area can be obtained through fast calculation after correction is finished.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to a method and a device for obtaining the optic disc area through an ophthalmic optical coherence tomography image. Background technique [0002] Glaucoma is an irreversible blinding eye disease, its prevention and treatment lies in early detection and early treatment. Optical coherence tomography (OCT) has become one of the most important means of diagnosing ophthalmic diseases, especially in the prevention and treatment of glaucoma. The important basis for the diagnosis of glaucoma is cup / disc ratio, optic disc area, These clinical performance parameters such as area and disc edge area. To obtain these parameters, it is necessary to obtain the reference point of the optic disc in a group of radially scanned OCT images of the optic disc. The so-called radial scan means that the midpoints of all scan lines pass through the same scan center and the scan diameter is the same length. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/14A61B3/12
Inventor 黄桂花鲁志勇
Owner CHONGQING BIO NEWVISION MEDICAL EQUIP LTD
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