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find Author "李晓莉" 2 results
  • Application of new fundus imaging in diabetic retinopathy

    Diabetic retinopathy (DR) is one of the most common causes of visual impairment and blindness in diabetic patients. It is particularly important to set up simpler, safer, non-invasive and highly effective methods for diagnosis as well as monitoring DR. A variety of new fundus imaging techniques show great advantages in early diagnosis, treatment and monitoring of DR in recent years. The main characteristics of wide-field scanning laser imaging system is achieving a large range of retinal image in a single photograph and without mydriasis. It provides several options for color images, FFA and FAF, which satisfy to detect the retina, choroid and vascular structure. Multi spectral fundus imaging system is suitable for DR screening, because it is able to recognize the typical characteristics of DR, such as microaneurysms, hemorrhage and exudation, and is non-invasive and convenient. OCT angiography is a quantitative examination that provides foveal avascular zone area, macular blood flow density, which provides strong evidence for DR diagnosis. The improvement of these new techniques will help us to build up a personalized evaluation system of DR.

    Release date:2019-01-19 09:03 Export PDF Favorites Scan
  • 3D打印辅助复杂胸主动脉血管病变分支支架腔内修复手术治疗的临床分析

    目的探讨 3D 打印辅助复杂胸主动脉血管病变 Castor 分支支架腔内修复手术治疗的可行性。方法纳入 2018 年 9~12 月急性 Stanford B 型主动脉夹层或主动脉弓部血管病变拟行腔内介入支架手术的 4 例患者,年龄分别为 65、55、45、39 岁。患者均缺乏足够的左锁骨下近端锚定区,或病变累及弓部血管无法采用常规单纯支架置入术。手术均采用 Castor 分支支架,术前采用三维 CT 血管造影(3D-CTA)及 3D 打印技术对主动脉弓部血管解剖进行精确刻画,并辅助手术策略制定及进行器械模拟植入。结果3 例为累及左锁骨下动脉的 Stanford B 型夹层(1 例合并升主动脉瘤),1 例为主动脉弓部穿通性溃疡。4 例患者手术顺利,1 例患者同期行体外循环升主动脉置换。患者术后 CTA 提示效果满意,无内漏、支架移位及卒中等严重并发症出现,30 d 随访患者状态良好,无不良严重并发症出现。结论3D 打印辅助复杂胸主动脉血管病变分支支架腔内修复手术具有很好的可行性及诸多潜在优势。

    Release date:2020-02-26 04:33 Export PDF Favorites Scan
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