Optical coherence tomography angiography

光学相干断层扫描血管造影
  • 文章类型: Case Reports
    报告2例先天性皮肤毛细血管扩张(CMTC)患儿光学相干血管造影(OCTA)成像的中央凹无血管区扩大(FAZ)。
    一名10周大的女性和一名3岁的男性被诊断患有CMTC,接受视网膜检查。在荧光素血管造影术(FA)上,两者都有周围血管不规则,而在两只眼睛的OCTA上都有FAZ增大。
    患有CMTC的儿科患者不仅应使用FA进行眼部评估,而且OCTA更有力地评估这种罕见疾病中受影响的视网膜。
    UNASSIGNED: To report 2 cases of enlarged foveal avascular zone (FAZ) on optical coherence angiography (OCTA) imaging in pediatric patients with cutis marmorata telangiectatica congenita (CMTC).
    UNASSIGNED: A 10-week-old female and a 3-year-old male diagnosed with CMTC presented for retinal examination. Both had peripheral avascularity on fluorescein angiography (FA) and enlargement of the FAZ on OCTA in both eyes.
    UNASSIGNED: Pediatric patients with CMTC should undergo ocular evaluation with not only FA, but also OCTA to more robustly evaluate the affected retina in this rare disease.
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  • 文章类型: Case Reports
    孔源性视网膜脱离(RRD)修复后可能会出现视网膜褶皱(RF),尽管它是一种罕见的并发症。
    这里,我们介绍了一例晚发性的术后外RFs,在玻璃体切除术后使用硅油(SO)填塞进行RRD修复后具有加重特征;早期临床发现,并发症,描述了12个月随访期间的解剖和功能状态。通过获取光学相干断层扫描扫描和血管造影来进行视网膜成像,可以指示RF随时间演变的详细形态和血管造影特征。我们的案例提供了对各种类型的RF以及视网膜解体的组合的见解,并在使用SO填塞进行RRD修复后的术后后期出现。
    我们的目标是提高对成功RRD修复后可能与RFs发展和进化相关的病理过程的认识,这表明准确诊断RFs的类型并密切监测其进展是至关重要的,以便为未来的视觉结果提供预测。
    UNASSIGNED: Retinal folds (RFs) may develop following rhegmatogenous retinal detachment (RRD) repair, though it consists an uncommon complication.
    UNASSIGNED: Herein, we present a case of late-onset postoperative outer RFs with aggravating characteristics following vitrectomy with silicone oil (SO) tamponade for RRD repair; early clinical findings, complications, anatomical and functional status during a 12-month follow-up period are described. Retinal imaging by acquiring optical coherence tomography scans and angiograms indicates detailed morphological and angiographic characteristics of the evolution of RFs over time. Our case provides insight into a combination of various types of RFs along with retinal disorganization with appearance in the late postoperative period after RRD repair with SO tamponade.
    UNASSIGNED: Our aim was to raise awareness of the pathological processes that may be associated with the development and evolution of RFs after successful RRD repair, indicating that it is critical to accurately diagnose the type of RFs and closely monitor their progression in an attempt to provide prognostication for future visual outcomes.
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  • 文章类型: Case Reports
    我们报告了一例78岁的男性,表现为不确定的视野丧失,最终使用超宽视野眼底自发荧光(FAF)和光学相干断层扫描血管造影(OCTA)确定为后极半球脉络膜营养不良(PPHCD)。患者最初报告左眼视力模糊,并且根据视神经头挖掘和静态视野测量,先前诊断为怀疑双侧正常眼压性青光眼。详细检查发现可疑视网膜萎缩。值得注意的是,病人有一个胫骨体状眼底,复杂了视野缺损与脉络膜视网膜萎缩的相关性。超宽视场FAF突出显示马赛克/斑点低荧光区域,强调这种萎缩。OCTA图像证实了半球脉络膜萎缩和旁凹萎缩的脉络膜毛细血管丧失。这些成像技术的组合能够明确诊断PPHCD。这些成像方式的长期随访和持续调查可能有望更好地了解类似病例的疾病进展和管理。
    We report a case of a 78-year-old man presenting with uncertain visual field loss, ultimately identified as posterior polar hemispheric choroidal dystrophy (PPHCD) using ultra-widefield fundus autofluorescence (FAF) and optical coherence tomography angiography (OCTA). The patient initially reported blurred vision in the left eye and had a previous diagnosis of suspected bilateral normal tension glaucoma based on optic nerve head excavation and static perimetry measurements. Detailed examination revealed suspicious retinal atrophy. Notably, the patient had a tigroid fundus, which complicated the correlation between visual field defect and chorioretinal atrophy. Ultra-widefield FAF highlighted mosaic/patchy hypofluorescent areas, emphasizing this atrophy. OCTA images confirmed choriocapillaris loss in the hemispheric choroidal atrophy and parafoveal atrophy. The combination of these imaging techniques enabled a definitive diagnosis of PPHCD. Long-term follow-up and continued investigation with these imaging modalities may hold promise for a better understanding of disease progression and management in similar cases.
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  • 文章类型: Case Reports
    我们介绍了一名20岁的女性,她在出现单侧视网膜炎20个月后被诊断为亚急性硬化性全脑炎(SSPE)。在介绍时,该患者的左眼有两个下颞叶黄斑病变。对应于这些地区,光学相干断层扫描(OCT)显示低反射空间,几乎所有的视网膜层都消失.OCT血管造影术(OCTA)显示一些流量不足区域,血管密度降低。她的血清麻疹抗体滴度高(IgG>5000.0mIU/ml)。20个月后,黄斑病变缩小了,有一些局灶性视网膜变薄,椭圆形区中断。OCTA显示,流量不足区域的大小随着灌注密度的相对提高而减小。神经系统检查显示肌阵挛性抽搐。神经心理学评估显示执行功能受损,注意,和缩小词汇流畅性。脑脊液中麻疹IgG抗体高(>230.0U/ml)。脑磁共振成像显示双侧,非特异性,额顶叶皮质下白质和中心半卵中T2高强度的小病灶。本病例是首次描述SSPE相关视网膜病变的OCTA发现。
    We present a 20-year-old woman who was diagnosed with subacute sclerosing panencephalitis (SSPE) 20 months after presenting with unilateral retinitis. At presentation, the patient had two inferotemporal macular lesions in her left eye. Corresponding to these areas, optical coherence tomography (OCT) showed hyporeflective spaces with loss of nearly all of the retinal layers. OCT-angiography (OCTA) demonstrated some flow deficit areas with a reduction in the vessel density. Her serum measles antibody titre was high (IgG >5000.0 mIU/ml). Twenty months later the macular lesions had diminished in size, and there was some focal retinal thinning with interruption of the ellipsoid zone. OCTA showed that the flow deficit areas were diminished in size together with the relatively improved perfusion density. Neurological examination disclosed myoclonic jerks. Neuropsychological assessment demonstrated impaired executive function, attention, and narrowed lexical fluency. Measles IgG antibody was high in the cerebrospinal fluid (>230.0 U/ml). Brain magnetic resonance imaging demonstrated bilateral, non-specific, small foci of T2 hyperintensity in the frontoparietal subcortical white matter and centrum semiovale. The present case is the first where OCTA findings of SSPE-related retinal lesions have been described.
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  • 文章类型: Case Reports
    Sneddon综合征(SS)通过多次中风和网状livedo表现出来。Livedoid血管病变(VL)的特征是足部和腿部溃疡的长期病史以及表明血栓形成过程的组织病理学。在52岁的VL男性中描述了动脉视网膜分支阻塞。他没有出现明显的实验室异常,如抗磷脂抗体,或者中风史.伴有VL的视网膜动脉闭塞可能是Sneddon综合征的一种变体。光学相干断层扫描血管造影显示无症状眼黄斑血管层减少,表明局部微血管变化是SS发病机制中不断发展的标志物。
    Sneddon\'s syndrome (SS) manifests through multiple strokes and livedo reticularis. Livedoid vasculopathy (VL) is characterized by a long history of foot and leg ulceration and histopathology indicating a thrombotic process. Arterial retinal branch occlusion is described in a 52-year-old male with VL. He did not present noticeable laboratory abnormalities, such as antiphospholipid antibodies, or a history of strokes. Retinal artery occlusion accompanied by VL could be a variant of Sneddon\'s syndrome. Optical coherence tomography angiography revealed a reduction in the macula\'s vascular layers in the asymptomatic eye, indicating localized microvascular changes as an evolving marker in the pathogenesis of SS.
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  • 文章类型: Case Reports
    背景:内源性念珠菌眼内炎(ECE)是一种罕见但危及视力的疾病。ECE患者出现各种临床体征和症状,这会使诊断复杂化.本报告的目的是证明治疗结果并诊断由眼内炎症引起的黄斑并发症。病例介绍:一名41岁女性,有急性间歇性卟啉病病史,左眼出现进行性视力丧失。左眼OCT显示与真菌病因一致的发现,从中心静脉导管收集的拭子的培养证实了这一点。静脉注射氟康唑治疗的结果不令人满意,病人反复发作卟啉症,提示全身抗真菌治疗的卟啉作用。反复玻璃体内注射两性霉素B导致炎性病变逐渐消退。然而,在OCT和OCTA扫描中,随访检查显示黄斑新生血管(MNV)活跃.患者给予玻璃体内贝伐单抗。在随访的第11个月,OCT和OCTA扫描显示明显的炎性病变消退,黄斑瘢痕,并且没有检测到MNV活性。结论:本案例强调了OCT和OCTA作为有价值的非侵入性成像技术对ECE的识别的重要性。对其临床过程的监测,和黄斑并发症的诊断。
    Background: Endogenous Candida endophthalmitis (ECE) is a rare but sight-threatening disease. Patients with ECE present with various clinical signs and symptoms, which can complicate the diagnosis. The aim of this report was to demonstrate the outcomes of treatment and to diagnose macular complications caused by intraocular inflammation. Case presentation: A 41-year-old woman with a history of acute intermittent porphyria presented with a progressive vision loss in her left eye. Left-eye OCT revealed findings consistent with a fungal etiology, which was confirmed by the culture of swabs collected from a central vein catheter. The outcomes of intravenous fluconazole treatment were not satisfactory, and the patient developed recurrent attacks of porphyria, suggesting a porphyrogenic effect of systemic antifungal therapy. Repeated intravitreal injections with amphotericin B led to a gradual regression of inflammatory lesions. However, follow-up examinations revealed active macular neovascularization (MNV) on both OCT and OCTA scans. The patient was administered intravitreal bevacizumab. At the 11th month of follow-up, OCT and OCTA scans showed significant inflammatory lesions regression with macula scarring, and no MNV activity was detected. Conclusions: This case highlights the importance of OCT and OCTA as valuable noninvasive imaging techniques for the identification of ECE, the monitoring of its clinical course, and the diagnosis of macular complications.
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  • 文章类型: Case Reports
    A 24-year-old female patient with photophobia, discoria, redness and dryness in her right eye after intense pulsed light (IPL) therapy applied for posttraumatic subcutaneous hemorrhage received a comprehensive ophthalmic examination including optical coherence tomography (OCT) and OCT angiography of the anterior eye segment. Her best corrected visual acuity was 20/20 in both eyes. Medically induced mydriasis revealed discoria with paresis of pupil dilatator in the left eye (pupil size 4.2 mm and 6.6 mm in the right and left eye, respectively). Anterior segment OCT showed anterior chamber cytosis and increased iris vascularity. The patient was prescribed topical 1.0% tropicamide 2 times per day and 1.0% dexamethasone 4 times per day for two weeks. Examination performed after 3 months showed no restoration of pupil dilatator function in the left eye. The case demonstrates potential ocular complications of IPL therapy, which may include iris burn with iritis and persistent pupil dilatator dysfunction.
    Пациентке 24 лет с жалобами на светобоязнь, изменение формы зрачка, покраснение и сухость левого глаза, появившиеся после проведения широкополосной интенсивной фототерапии (intense pulsed light therapy, IPL) по поводу подкожного кровоизлияния левой скуловой области, было выполнено стандартное офтальмологическое исследование, а также оптическая когерентная томография (ОКТ) и ОКТ-ангиография (ОКТ-А) переднего сегмента глаза. Максимальная корригированная острота зрения обоих глаз составляла 1,0. В условиях медикаментозного мидриаза у пациентки определялись дискория и парез дилататора зрачка левого глаза (диаметр зрачка 4,2 и 6,6 мм на левом и правом глазу соответственно). Были обнаружены цитоз во влаге передней камеры по данным ОКТ переднего сегмента и увеличение васкуляризации радужки по данным ОКТ-А. Пациентке были назначены инстилляции тропикамида 1,0% 2 раза в день и дексаметазона 1,0% 4 раза в день в левый глаз на 14 сут. На сроке до 3 мес восстановление функции дилататора зрачка достигнуто не было. Данный случай демонстрирует потенциальные глазные осложнения IPL, включая ожог радужной оболочки с иритом и стойким нарушением функции дилататора зрачка.
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  • 文章类型: Case Reports
    评估与巨细胞动脉炎(GCA)相关的纤毛视网膜动脉闭塞(CLRAO)的特征性影像学表现和功能结局。
    我们报告了一例70岁女性,她的左眼(LE)出现GCA相关CLRAO引起的突然视力丧失。全面的眼科检查以及光学相干断层扫描(OCT),OCT-血管造影(OCT-A),进行荧光素血管造影和眼底自发荧光。在介绍时,LE患者的最佳矫正视力为20/200,眼底镜检查显示视盘水肿与CLRA灌注区域的视网膜增白相关.一个月后,OCT和OCT-A显示视网膜水肿改善,浅层和深层毛细血管丛的非灌注区域部分减少,以及外视网膜和脉络膜毛细血管。荧光素血管造影术显示受影响区域的灌注减少,视盘颞区的延迟灌注,以及周围颞叶视网膜脉络膜灌注不足的区域。随访期间患者视力无变化。
    尽管在与GCA相关的CLRAO之后可能会对闭塞的脉管系统进行部分再通,患者的视力预后仍然很差。
    UNASSIGNED: To evaluate characteristic imaging findings and functional outcomes of Cilioretinal Artery Occlusion (CLRAO) associated with giant cell arteritis (GCA).
    UNASSIGNED: We report the case of a 70-year-old woman presenting with sudden vision loss caused by a GCA-associated-CLRAO in her left eye (LE). A thorough ophthalmologic examination together with optical coherence tomography (OCT), OCT-Angiography (OCT-A), fluorescein angiography and fundus autofluorescence were performed. At presentation, the best corrected visual acuity in the LE was 20/200 and funduscopic examination revealed optic disc edema associated with retinal whitening along the area perfused by the CLRA. After 1 month, OCT and OCT-A revealed an improvement of the retinal edema and a partial reduction of the non-perfused areas in the superficial and deep capillary plexuses, as well as in the outer retina and in the choriocapillaris. Fluorescein angiography showed a reduction in the perfusion of the affected area, a delayed perfusion of the temporal sector of the optic disc, as well as areas of choroidal hypoperfusion in the peripheral temporal retina. The patient\'s visual acuity did not change during the follow up.
    UNASSIGNED: Despite a partial recanalization of the occluded vasculature being possible after GCA-associated-CLRAO, the patient\'s visual prognosis remains poor.
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  • 文章类型: Case Reports
    先天性视网膜大血管(CRM)是一种罕见的实体。它们通常是单方面的,异常大,和异常血管。尽管大多数患者无症状,如果CRM与黄斑的色素变化有关,则可能会影响视力,小窝囊肿,中心性浆液性视网膜病变,黄斑出血,或者大血管穿过中央凹。这里,我们介绍了一个年轻女性来进行常规眼科评估的案例。她没有症状,大血管是偶然发现的。视力和裂隙灯检查正常,除右眼CRM外,眼底扩张评估正常。光学相干断层扫描血管造影成像有助于可视化血管的深度以及对中央凹无血管区结构的分析。
    Congenital retinal macrovessels (CRMs) are a rare entity. They are usually unilateral, abnormally large, and aberrant vessels. Although the majority of the patients are asymptomatic, CRMs may affect vision if they are associated with pigmentary changes at the macula, foveolar cysts, central serous retinopathy, macular hemorrhage, or if the macrovessel crosses the fovea. Here, we present the case of a young female who came for a routine ophthalmological evaluation. She was asymptomatic, and the macrovessel was an incidental finding. Visual acuity and slit lamp examination were normal, and dilated fundus evaluation was normal except for CRM in the right eye. Optical coherence tomography angiography imaging helped visualize the depth of the vessel and the analysis of the architecture of the foveal avascular zone.
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  • 文章类型: Case Reports
    我们介绍了一例创伤性视网膜昏迷(CR),其中使用光学相干断层扫描血管造影(OCTA)评估血流。
    一名18岁的日本男子出现外伤性视网膜脱离和左眼CR,被手球击中。眼底检查显示周边视网膜撕裂从1点延伸到3点位置,伴有视网膜脱离,和CR附近的撕裂区域。荧光素血管造影术(FA)证实了CR处视网膜撕裂区域附近的缺血区域。患者接受了成功的巩膜扣带术和冷冻术。进行了OCTA序贯成像,我们能够确定CR区域的灌注,维持血液流动。
    在钝性眼外伤中,随着时间的推移,可以使用OCTA非侵入性地评估外周视网膜复合体.OCTA是评价周边视网膜白化区域的有用办法。
    UNASSIGNED: We present a case of traumatic commotio retinae (CR), in which blood flow was evaluated using optical coherence tomography angiography (OCTA).
    UNASSIGNED: An 18-year-old Japanese man presented with traumatic retinal detachment and CR in his left eye, which had been hit by a handball. Fundus examination revealed peripheral retinal tear extending from the 1 to 3 o\'clock position with retinal detachment, and CR near the area of tear. Fluorescein angiography (FA) confirmed an ischemic area near the retinal tear area at the CR. The patient underwent successful scleral buckling and cryopexy. Sequential OCTA imaging was performed and we were able to determine perfusion in the CR area, with maintained blood flow.
    UNASSIGNED: In blunt eye trauma, peripheral commotio retinae can be assessed non-invasively over time using OCTA. OCTA is a useful method for evaluating peripheral retinal whitened areas.
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