使用扫描激光检眼镜进行彩色成像的新方法。
Novel approach towards colour imaging using a scanning laser ophthalmoscope.
作者信息
Manivannan A, Kirkpatrick J N, Sharp P F, Forrester J V
机构信息
Department of Bio-Medical Physics and Bio-Engineering, University of Aberdeen.
出版信息
Br J Ophthalmol. 1998 Apr;82(4):342-5. doi: 10.1136/bjo.82.4.342.
AIMS
Conventional fundus imaging using a fundus camera produces colour fundus pictures. The scanning laser ophthalmoscope (SLO) has the advantages of lower levels of light exposure, improved contrast, and direct digital imaging but until now has produced monochromatic images as a laser of single wavelength is used. True representation of the fundus is possible by combining images taken using blue, green, and red lasers.
METHODS
A custom built SLO was used to capture blue, green, and red fundus images from suitable volunteers and patients with fundus disease. Images were corrected for eye movement and combined to form a colour image. Colour fundus photographs were taken using a fundus camera for comparison with the SLO image.
RESULTS
The background fundus and retinal vasculature had similar appearances with the two imaging modalities. Internal limiting membrane reflections were prominent with the SLO. Identification of new vessels in the diabetic fundus was easier with the SLO than the colour fundus photographs.
CONCLUSION
A colour SLO offers all the advantages of the present monochromatic imaging system with the added advantage of true colour representation of the fundus.
目的
使用眼底相机进行的传统眼底成像可生成彩色眼底图像。扫描激光检眼镜（SLO）具有曝光量低、对比度提高和直接数字成像的优点，但到目前为止，由于使用的是单波长激光，所以只能生成单色图像。通过组合使用蓝色、绿色和红色激光拍摄的图像，可以实现眼底的真实呈现。
方法
使用定制的SLO从合适的志愿者和患有眼底疾病的患者中采集蓝色、绿色和红色眼底图像。对图像进行眼动校正并合并以形成彩色图像。使用眼底相机拍摄彩色眼底照片以与SLO图像进行比较。
结果
两种成像方式下，眼底背景和视网膜血管的外观相似。SLO下内界膜反射明显。与彩色眼底照片相比，使用SLO更容易识别糖尿病眼底中的新生血管。
结论
彩色SLO具有当前单色成像系统的所有优点，还具有眼底真实色彩呈现的额外优势。
Zotero 插件