Dual-band optical coherence tomography imaging system for examining early lesion

Abstract

The invention discloses a dual-band optical coherence tomography imaging system for examining early lesion, which comprises a spectral band I coherence tomography imaging system, a spectral band II coherence tomography imaging system and a central processing unit. The central processing unit receives interference stack data of a measuring branch I and a measuring branch II and analyzes and processes the interference stack data according to a formula. The dual-band optical coherence tomography imaging system can fit influences of power difference of light sources and photoelectricity conversion efficiency to a detection result, and avoids the problem that measurement is inaccurate and correct diagnosis is difficult to be realized due to the power difference of the light sources and photoelectricity conversion efficiency of a photoelectrical probe to light with different wavelengths. The reflecting intensities of the spectral band II are normalized by the aid of the synchronously acquired reflecting intensities of the spectral band I which is reflected by an examinee, so that relative reflectivity of the spectral band II is obtained, accurate measurement of reflectivity of the examinee is ensured, accordingly early lesion is diagnosed accurately, and the dual-band optical coherence tomography imaging system provides a theory basis for timely diagnosing and treating early lesion of the examinee.

Description

technical field [0001] The invention relates to a device for early diagnosis of diseases, in particular to a dual-band optical coherence tomography system for early lesion detection. Background technique [0002] Certain organ lesions on the organism are the main cause of the degeneration of the organism, especially for some diseases, the incidence rate is relatively high and it is not reversible. For example, glaucoma is a common irreversible blinding disease, and its incidence rate is second only to cataract among blinding eye diseases, ranking second. As far as the current research on glaucoma in the medical field is concerned, it is still difficult to help normal people prevent the occurrence of glaucoma; especially primary open-angle glaucoma and primary angle-closure chronic glaucoma, because the disease has no symptoms or mild symptoms in the early stage, it is easy to be diagnosed Neglect; when noticeable symptoms are present, the irreparable loss of that part of th...

AI Technical Summary

Problems solved by technology

However, due to the power difference of the light source and the photoelectric conversion efficiency of the photoelectric probe for different wavelengths in this system, the measurement is inaccurate and it is difficult to achieve correct diagnosis.

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