Optical Coherence Tomography (OCT) Findings and Coronary Bifurcation Lesions
To determine the clinical relevance of vulnerable plaque using OCT in patients with coronary bifurcation lesion.
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Articles in category: Clinical Trials
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The OCTOBER Trial - Nordic-Baltic-British Study on Optical Coherence Tomography Optimized Bifurcation Event Reduction (OCTOBER)
Read Full ArticleThe purpose is to compare median two-year clinical outcome after OCT guided vs. standard guided revascularization of patients requiring complex bifurcation stent implantation
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Optical Coherence Tomography in Acute Coronary Syndrome (OPTICO-ACS)
Read Full ArticleThe OPTICO-ACS- study program - combining for the first time in vivo characterization of the ACS-causing "culprit lesion" by intracoronary imaging technique with optical coherence tomography (OCT) and molecular analysis of immune-cells derived from the culprit coronary thrombus and biochemical analyses in patients with acute-coronary-syndrome (ACS).
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Pituitary Gland Enlargement Was First Diagnosed by Optical Coherence Tomography (OCT)
Read Full ArticleOCT is now an established way to measure the thickness of the Retinal Nerve Fiber Layer (RNFL) in the retina of the eye. The thickness of the RNFL is always a reflection of the number of the RNFs in any particular area of the retina. Each single RNF runs a long course starting from the cell body which is the retinal ganglion cell in the retina and ends in the thalamus of the brain where it relays visual information to other nerve cell in the thalamus. Along this long course RNFs are in close anatomical relationship with the pituitary gland ...
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Comparisons of Morphological Measurement Between Coronary Computed Tomography and Optical Coherence Tomography
Read Full ArticleThe objective of this study is to evaluate the precision of semi-automated lumen boundary identification from coronary computed tomography angiography (cCTA) by current version of HeartFlow software and the impact on fractional flow reserve (FFRCT) by using optical coherence tomography (OCT) as reference standard.
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Optical Coherence Tomography Morphologic and Fractional Flow Reserve Assessment in Diabetes Mellitus Patients (COMBINE)
Read Full ArticleCombined Optical Coherence Tomography Morphologic and Fractional Flow Reserve Hemodynamic Assessment of Non-Culprit Lesions to Better Predict Adverse Event Outcomes in Diabetes Mellitus Patients COMBINE (OCT-FFR) Prospective Register To study the natural evolution of patients with at least one intermediate angiographic but non-hemodynamic significant stenotic lesion, in two subgroups of patients, with TCFA vs. no TCFA as detected by OCT imaging and to compare these two groups of patients with each other as well as to a subset of patients with FFR-positive and PCI-treated intermediate lesions on future MACE.
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Comparison Between an Electronic Mobile Device and Optical Coherence Tomography to Determine Cup-to-disc Ratio
Read Full Articlehis study was a non-inferiority trial with masked data analysis. Individuals ranging from 18 to 60 years from both genders that met the pre-defined criteria were included. This study was carried out in Recife at Clinica Oftalmologica Zona Sul and at Centro de Informatica-UFPE. Using both equipment, 5 vertical cup-to-disc ratio (VCDR) evaluations were performed for each eye of the individuals, under midriatic conditions. Evaluations were done by examiners who did not know previously results obtained from other equipment. Data was collected by the main researcher of this research. This study was approved by the ethics committee before it started ...
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Optical Coherence Tomography (OCT) Intravascular Ultrasound (IVUS) Dual Imaging
Read Full ArticleBoth intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are standardly used and have been extensively studied separately to guide percutaneous coronary intervention and improve long-term outcomes. In this study, the investigators aim to directly compare high-definition IVUS images to OCT in the same patients to determine the differences between each modality as they relate to imaging coronary pathology, with the goal of determining which modality is most appropriate in particular clinical scenarios.
Mentions: Columbia University -
Randomised, double-blind, placebo-controlled study investigating the effects of inorganic nitrate on vascular function, platelet reactivity and restenosis in stable angina: protocol of the NITRATE-OCT study
Read Full ArticleIntroduction The mainstay treatment for reducing the symptoms of angina and long-term risk of heart attacks in patients with heart disease is stent implantation in the diseased coronary artery. While this procedure has revolutionised treatment, the incidence of secondary events remains a concern. These repeat events are thought to be due, in part, to continued enhanced platelet reactivity, endothelial dysfunction and ultimately restenosis of the stented artery. In this study, we will investigate whether a once a day inorganic nitrate administration might favourably modulate platelet reactivity and endothelial function leading to a decrease in restenosis. Methods and design NITRATE-OCT is ...
Mentions: Imperial College London -
Korea University Anam Hospital Optical Coherence Tomography Registry
Read Full ArticleAll comer registry who had undergone intravascular optical coherence tomography during and/or after coronary intervention.
Mentions: Korea University -
Measurement of Anterior Chamber Cell Grading Using Ocular Coherence Tomography
Read Full ArticleOptical Coherence Tomography (OCT) is routinely used in ophthalmic clinical practice. It uses infrared light to image patient's eyes. Some patients, such as those with an inflammatory disease called uveitis or those who have just undergone cataract surgery, have intraocular inflammation. This intraocular inflammation commonly manifests as cells that can be seen on routine microscopic clinical examination. However, the only currently available method to quantify this intraocular inflammation is by manually counting on the microscopic clinical examination. The investigators plan to use the OCT machine to image patient's eyes. The investigators will then use the images obtained from ...
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Optical Coherence Tomography (OCT) Trial in Multiple Sclerosis (OCTIMS)
Read Full ArticleThis is a 3-year, pharmacologically non-interventional study to evaluate OCT as an outcome measure in patients with relapsing remitting multiple sclerosis (RRMS). Approximately 350 RRMS patients, either untreated or treated with an approved MS disease-modifying therapy and approximately 70 reference subjects without ophthalmologic or neurologic disease are enrolled. No study medications are provided. Patients on disease-modifying therapy are treated according to the local prescribing information. For each MS patient and each reference subject, the study consists of Screening (up to 1 month), Baseline, and a 36-month longitudinal data collection phase. Eligibility will be confirmed during Screening.
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Clinical Significance of Pre-interventional Optical Coherence Tomography in Bioresorbable Vascular Scaffold Implantation
Read Full ArticlePrevious studies reported 20-30% of under-expansion or malapposition with BVS, which would increase the risk of adverse events including late stent thrombosis. OCT-guidance may improve more optimized scaffold placement and also better outcomes. However, there is still no sufficient evidence that OCT has an inevitable role in optimal implantation of BVS and it should be more evaluated in real practice. In the study, the investigators will evaluate an incidence of OCT-defined BVS sub-optimization requiring additional PCI+A1.
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Optical Tomographic Scanner for Skin Lesions
Read Full ArticleOptical coherence tomography is technology widely used in medicine. In this study, we will use an optical tomographic scanner to scan skin tissue image.
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The Impact of Two Strategies in the Monitoring of Exudative ARMD on the Visual Acuity (by OCT B Scan or OCT Angiography)
Read Full ArticleThe treatment of neovascular age-related macular degeneration (ARMD) is a major issue of public health. The therapeutic arsenal has widely grown throughout the years with the emergence of intra-vitreous anti-angiogenic treatments, under different surveillance protocols. The "PRN" surveillance (pro re nata: an on-demand treatment with monthly follow-up) allows a faster re-injection in case of neovascular relapse in order to maintain the best visual acuity. This therapeutic protocol is guided by the sub-retinal neovascular signs of activity. The monitoring is done during common practice via OCT B scans showing indirect signs of neovascular activity (exudation signs). OCT retinal imaging has been ...
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OCT Based Edge and In-stent Vascular Response After Cordimax Stent in patIents With NSTE-ACS
Read Full ArticleThis study evaluates the completeness of strut coverage and vessel wall response, at different time points (3-6-12 Months), following CordimaxTM stent implantation in patients with non-ST elevation acute coronary syndrome
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6-month Intracoronary Optical Coherence Tomography (OCT) Evaluation of Three New Generation Drug Eluting Stent (CREBX-OCT)
Read Full ArticleAim of this study is to compare at 6 months follow-up, endothelization and malapposition, evaluated by means of optical coherence tomography, in terms of number of struts not endothelized or malapposed, after the implantation of three new generation stent: Cre8, Biomatrix and Xience.
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Optical Coherence Tomography of Ocular Structures in Epiphora and Dry Eye Syndrome. (OCT)
Read Full ArticleThe primary aim of the study is to investigate whether optical coherence tomography (OCT) may be a useful tool for investigating the in-vivo histology of ocular structures in patients with tear film pathology. In epiphora the investigators will image the proximal lacrimal system. In dry eye syndrome the investigators will image the lacrimal gland and also the buccal mucosa. The secondary aim of the study is to investigate the appearance of the normal cornea and conjunctiva under OCT imaging.
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Study of Imaging Characteristics OCT of Skin Lesions Requiring Biopsy / Resection (OCTSKIN)
Read Full ArticleThe diagnosis of cutaneous lesions often involves the use of surgical and invasive procedures such as biopsy or excision in order to analyze the structure and appearance of the fabric pathologists. With recent advances in optical and electronic fields, considerable efforts were produced to build high-performance optical instruments, able to transcribe the internal structure of the skin with varying degrees of depth and variable resolution. The imagery is now an area of great interest for medical diagnosis: non-invasive, quick, and in real time. This area is booming and new optical instruments are created to eventually be able to offer a ...
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The Effect of Oral Contraceptive Pills On Eyes
Read Full ArticleThe investigators aimed to evaluate the effect of oral contraceptive pills(OCP) on macula, retinal nerve fiber layer and choroid thickness by using Optical Coherence Tomography (OCT). The present clinical study is the first research reported in the literature which is investigating the posterior ocular segment changes in women using OCP by using OCT.
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Optical Imaging Measurement of Intravascular Solution Efficacy Trial (OPTIMISE)
Read Full ArticleIodinated contrast is the current gold standard for infrainguinal angiography imaging in patients without renal insufficiency and has also been used with intravascular Optical Coherence Tomography (iOCT) to improve image quality in human coronary arteries as well as carotid arteries. The current debate in the literature for iOCT medium is between iodinated contrast and dextran and CO2 may offer a superior method of iOCT imaging during lower extremity occlusive disease interventions. The investigators hypothesize that the CO2 medium injection during iOCT data acquisition is feasible and will produce at least the same quality of imaging as that obtained with contrast ...
Mentions: Case Western Reserve University -
Advanced OCT and Adaptive Optics Imaging in Retinal Disease (The ACAD Study)
Read Full ArticleThe objectives of this study include using the new technology of SS-OCT (swept source optical coherence tomography ) to evaluate morphological abnormalities of the vitreous, retina and choroid and to assess the repeatability of retinal and choroidal thickness measurements in retinal disease using SS-OCT. A secondary objective is to use the new imaging modality of adaptive optics to directly visualize photoreceptor mosaics and microvasculature in eyes with retinal and choroidal disease.
Mentions: Topcon Medical Systems -
Adaptive Optics for Ophthalmic Technologies
Read Full ArticleThis is a feasibility study to assess the use of wide field adaptive optics optical coherence tomography (WF-AO-OCT) to determine whether there are structural differences in the peripheral retina in participants diagnosed with diabetic retinopathy compared to a healthy control group. This study being conducted under an abbreviated IDE. The investigators will analyze data using descriptive statistics. Risks related to light exposure will be managed by ensuring that the exposure to the WF-AO-OCT light source is well below maximum permissible limits for safe exposure.
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The EASE Study - Human Factor and Usability Testing of a Binocular OCT System
Read Full ArticleOphthalmology is among the most technology driven of all medical specialties, with advanced medical imaging devices - and specialised computer software - increasingly adopted for routine clinical use. While many such devices are capable of completing specific tasks, lack of "usability" prevents their widespread adoption (i.e., such devices are not easy to learn and remember, or are not efficient or subjectively pleasing to use). Moreover, devices that are difficult to use expose patients to clinical risk as a result of human error during usage. With the introduction of a new medical technology, it is essential, therefore, to have a deep understanding ...
Mentions: University College London
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