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Effects of indocyanine green angiography on electroretinogram

Objective To icompare the effects of indocyanine green angiography(ICGA) on ganzfeld Electroretinogram(ERG). Methods ICGA was performed used the Topcon 50IA retina camera, Ganzfeld ERG was recorded by Neuropack Ⅱ evoked response recorder. The Ganzfeld ERG was recorded before and after ICGA in 20 cases (38 e yes) with different diseases , Ganzfeld ERG was recorded according to the ISCEV standard recommendations. Results ICGA did neither affect Ganzfeld ERG a-wave and b-wave latency nor amplitudes of dark adaptation, maximum response and light adaptation.(Pgt;0.05). Conclusion ICGA using the Topcon 50IA could be performed prior to the recording of the Ganzfeld ERG. (Chin J Ocul Fundus Dis, 2001,17:284-285)

Indocyanine green angiographic findings in contralateral eyes of patients with unilateral exudative age-related macular degeneration

Objective To analyse the indocyanine green angiographic findings in contralateral eyes of patients with unilateral exudative age-related macular degeneration(AMD). Methods Fundus photograph,fundus fluorescein angiography(FFA) and indocyanine green angiography(ICGA)　were performed in a series of 70 patients with unilateral AMD and drusens and pigmentary changes in the macular region in contralateral eyes.The findings of fluoroangiograms were observed and analysed. Results ICGA revealed the characteristics of the contralateral eyes as follows:(1)Drusen could be hypofluorescent,hyperfluorescent or normal fluorescent;(2)14 eyes revealed plaque-like late hyperfluorescent;(3)13 eyes revealed choroidal filling defect;(4)18 eyes revealed pindot-like clusters of late hyperfluorescence. Conclusion ICGA is useful in evaluating the lesions and circulation disturbance of the contralateral eye,and may help to find the risk factors of developing future exudative changes. (Chin J Ocul Fundus Dis, 1999, 15: 216-218)

脉络膜渗漏综合征多种眼底影像特征对比观察

Autofluorescence of dated ocular fundus hemorrhage excited by different excitation light

Objective To observe the autofluorescence of dated fundus hemorrhage excited by the excitaton light with different wavelength. Methods A total of 23 patients (23 eyes) with dated fundus hemorrhage were observed. The blue light under the fundus fluorescence angiography (FFA) mode of Topcon 50IA fundus camera was the excitation light, and the whiteandblack images of 4 patients and colorized images of 16 patients were collected, respectively. The autofluorescence of dated fundus hemorrhage in other 3 patients was observed by excitation of scanning laser with the wavelength of 488 nm and 795 nm emitted from Heidelberg retina angiography apparatus (HRA2). Results The black and white images showed the b red autofuorescence of dated fundus hemorrhage in 4 patients, while the colorized ones revealed the red autofluorescence in 16 patients. The hemorrhage autofluorescence could be also excited by blue laser (488 nm) and infrared laser (795 nm) using HRA2, but with different extent and intensity. Conclusions Due to the complex composition of dated fundus hemorrhage, different excitation light can excite the autofuorescence with different wavelength.

Diagnostic Value of Multislice CT Angiography to Abdominal Huge Mass

【摘要】 目的 探讨多层螺旋CT血管造影（MSCTA）对腹部巨大肿块定位定性的诊断价值。 方法 收集2005年6月-2009年12月98例腹部巨大肿块，作MSCTA检查，观察供血动脉来源和肿块与血管关系。 结果 98例肿块发现有主要供血动脉76例，其中恶性肿块69例，血管受侵改变51例。 结论 由于MSCTA快捷、无创、经济、方便、空间分辨率高等优点，对腹部巨大肿块定位定性有较高诊断价值。【Abstract】 Objective To investigate the diagnostic value of multislice CT angiography (MSCTA) to abdominal huge mass from June 2005 to December 2009. The relation among blood vessel and supply origin and tumor was analyzed. Methods MSCTA was performed in 98 cases with abdomenial huge mass. Results The feeding artery of mass was discovered in 76 cases, in which malignant tumors were confirmed in 69 cases, the vessels were encroached on in 51 cases. Conclusion MSCTA may be of high value to diagnose abdominal huge mass because of noninvasiveness, convenience, and high resolution.

单独睫状视网膜动脉阻塞临床观察

下肢肿胀患者D2聚体和静脉造影的诊断价值

【摘要】 目的 探讨D2聚体对下肢静脉血栓形成的诊断价值。 方法 2009年1月-2010年1月，对80例下肢肿胀患者进行D2聚体和静脉造影检查，对检查结果进行回顾性分析。 结果 下肢完全型血栓12例，占15.00%，髂外、股总静脉血栓33例，占41.25%，腓肠肌静脉丛血栓9例，占11.25%。D2聚体与静脉造影的结果无统计学意义（Pgt;0.05）。D2聚体阳性者57例，非血栓性肿胀者中仅4例；D2聚体阴性者23例，非血栓性肿胀者22例。 结论 D2聚体为下肢血栓提供了一个敏感、有效地检查方法，其阴性的价值远远大于阳性价值，用于排除诊断更有意义。

Prepapillary and preretinal vascular loops

Objective To investigate the clinical characteristics of prepapillary and preretinal vascular loops. Methods The clinical manifestation, results of the fundus fluorescein angiography, and the prognosis of 20 cases(24 eyes) with prepapillary and preretinal vascual loops were analyzed retrospectively. Results 66.7% of prepapillary and preretinal vascular loops were involved in one eye, and 95.8% of vascular loops were located within one optic disc diameter. There were different configuration types of the vascular loops. Among 20 cases(24 eyes) of the vascular loops, 70.8%(17 eyes) were arterial, 12.5%(3 eyes) were venous, and 16.7%(4 eyes) were both arterial and venous. 62.5% of eyes with prepapillary and preretinal vascular loops were associated with other congenital and developmental anomalies of retinal vascular vessels. Conclusion Most PRVL are arterial and superior to the optic disc. The serious distortion of the vascular loops may result in disturbance of blood flow in artery and retinal hemorrhage, which cause visual loss. (Chin J Ocul Fundus Dis, 1999, 15: 9-11)

Dynamic Observation of Biliary Tract after Surgery Via TTube Cholangiography in 170 Cases

Objective To gain accurate imaging information of biliary tract after surgery. MethodsThe biliary tract of 170 cases after surgery had been observed dynamically from different directions for longer time. The results of data on biliary tract change were stored in disc, or picture. ResultsOf 170 cases, 120 cases were cured without any abnormal change on cholangiography, and then the Ttube was removed. Of another 50 cases, 30 cases revealed remnant stone on cholangiography, 9 cases showed inflammatory stricture of biliary tract, 4 cases displayed common bile duct tumor, and 7 cases had false fillingdefect. Then, the results were further confirmed by sonography, CT, choledochoscopy, and operation. Conclusion The dynamic observation of biliary tract by Ttube cholangiography after surgery is usual way that is handy, practical, painless, and economic.

EXPERIMENTAL STUDY. OF THE EFFECTS OF PREOPERATIVE VENOGRAPHY ON THE VEINS AND THEIR ANASTOMOSES

Standard venographies were pcrformed to evaluate the endothelial damage by the contrast medium. After different time intervals, the local veins were prepared for transmission and scanning electron microscopy (TEM and SEM) investigation. The veins were in a dilated state after the angiographies, which lasted for about two days. The endothelial damage was most severe 1 day after the venography. Besides the lesions of extensive endothelial tissurs, dcsquamations, and the exposure of subendothelial tissues, microthrombi somethimes were found. Healing occurred within 3 days. The results this study has also verifieed that it was more valuable to study venogqaphic effects on veins with TEM and SEM.