1. Articles in category: Textbooks

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    1. Optical Coherence Tomography (Book Chapter)

      Optical Coherence Tomography (Book Chapter)

      The evaluation of the optical coherence tomography (OCT) is based on the identification of differences in the relative reflectivity of different tissue layers and morphological changes in tissue structures. So the examination is able to localize and grossly demarcate inflammation in the vitreous cavity (by its dynamic analysis) or beneath retinal layers as well as detail retinal changes on the chronic phases of retinal disease like fibrosis, atrophy, or retinal edema.

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    2. Optical Coherence Tomography of Vascular Disorders, Malformations, and Tumors (Textbook)

      Optical Coherence Tomography of Vascular Disorders, Malformations, and Tumors (Textbook)

      Equips the reader to identify anatomy and ophthalmic disease as illustrated on optical coherence tomography (OCT) Includes numerous high-quality images, ensuring that key points can be easily followed. This richly illustrated, comprehensive guide will enable the reader to identify anatomy and ophthalmic disease as illustrated on optical coherence tomography (OCT). It is the most up-to-date atlas of OCT images, many of which have been obtained with the newer OCT technologies that offer excellent image quality and definition at a microscopic level. All of the major disease areas in ophthalmology are covered, including diabetic retinopathy, age-related macular degeneration, uveitis, glaucoma, retinal ...

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    3. Optical Coherence Tomography for Assessment of Percutaneous Coronary Intervention with Excimer Laser Coronary Atherectomy (Book Chapter)

      Optical Coherence Tomography for Assessment of Percutaneous Coronary Intervention with Excimer Laser Coronary Atherectomy (Book Chapter)

      The indications for Excimer laser coronary atherectomy (ELCA) have been refined in modern interventional practice. With the expanding role for optical coherence tomography (OCT) providing high-resolution intra-coronary imaging, this article examines the appearance of the coronary lumen after ELCA. Each indication for ELCA is discussed and illustrated with a clinical case, followed by detailed analysis of the OCT imaging pre and post ELCA. The aim of the article is to provide information to interventional cardiologists to facilitate decision making during PCI, when ELCA has been used as part of the interventional strategy.

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    4. Optical coherence tomography in current glaucoma practice: pearls and pitfalls (Textbook)

      Optical coherence tomography in current glaucoma practice: pearls and pitfalls (Textbook)

      Glaucoma is a condition of the eye in which the optic nerve is damaged due to increased fluid pressure in the eye. Left untreated, the condition may lead to permanent blindness. Optical coherence tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-section pictures of the retina, the light-sensitive tissue lining the back of the eye (geteyesmart.org). OCT is commonly used in the evaluation of patients with glaucoma. This manual is a concise guide to the use of OCT for the diagnosis of glaucoma. Beginning with an introduction to OCT, the book then provides in ...

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    5. Diagnostic Optical Imaging Technology and Its Principles (Book Chapter)

      Diagnostic Optical Imaging Technology and Its Principles (Book Chapter)

      Analysis of tissue structures is important for investigating pathological changes and diagnosing neural diseases. Recent advances in ophthalmology regarding the diagnosis of neurosensory retinal diseases have introduced optical coherence tomography (OCT) as a near-infrared imaging modality to provide noninvasive and real-time imaging and sensing with ultrahigh resolution for imaging subsurface cross sections of the human retina. This chapter gives a brief overview and the basic principles of this emerging optical imaging modality.

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      Mentions: Korea University
    6. Interpretation of Flood-Illuminated Adaptive Optics Images in Subjects with Retinitis Pigmentosa (Book Chapter)

      Interpretation of Flood-Illuminated Adaptive Optics Images in Subjects with Retinitis Pigmentosa (Book Chapter)

      The purpose of this study was to correlate features on flood-illuminated adaptive optics (AO) images with color fundus, fundus autofluorescence (FAF) and spectral domain optical coherence tomography (SD-OCT) images in patients with retinitis pigmentosa (RP). We imaged 39 subjects diagnosed with RP using the rtx1 TM flood-illuminated AO camera from Imagine Eyes (Orsay, France). We observed a correlation between hyper-autofluoresence changes on FAF, disruption of the interdigitation zone (IZ) on SD-OCT and loss of reflective cone profiles on AO. Four main patterns of cone-reflectivity were seen on AO: presumed healthy cone mosaics, hypo-reflective blurred cone-like structures, higher frequency disorganized hyper-reflective ...

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    7. Optical Coherence Tomography in Multiple Sclerosis: Clinical Applications (Textbook)

      Optical Coherence Tomography in Multiple Sclerosis: Clinical Applications (Textbook)

      This book gives a clinical context to optical coherence tomography (OCT) findings, while considering the differential diagnosis and providing patient management guidance. Relevant anatomical and technical aspects are discussed, followed by a pragmatic illustration of the use of OCT for the clinical spectrum of multiple sclerosis and optic neuritis, and finishing with information on monitoring ocular side effects of recently approved disease-modifying treatments in multiple sclerosis. Optical Coherence Tomography in Multiple Sclerosis: Clinical Applications is aimed at clinical neurologists working with patients suffering from MS and general neurologists who see patients with visual symptoms in their daily practice. Ophthalmologists sharing ...

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    8. Beyond Endoscopy-Ultrasound, Optical Coherence Tomography and Confocal Laser Endomicroscopy (Book Chapter)

      Beyond Endoscopy-Ultrasound, Optical Coherence Tomography and Confocal Laser Endomicroscopy (Book Chapter)

      One of the main challenges in endoscopic diagnosis and treatment of upper urinary tract urothelial carcinoma is the complicated anatomy and the small size of the upper urinary tract, resulting in high demands on the armamentarium and expertise of the urologist. Difficulties to reach the complete collecting system could result in an incomplete visual inspection.

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    9. Smart Sensors for Health and Environment Monitoring (Book)

      Smart Sensors for Health and Environment Monitoring (Book)

      This book covers two most important applications of smart sensors, namely bio-health sensing and environmental monitoring. The approach taken is holistic and covers the complete scope of the subject matter from the principles of the sensing mechanism, through device physics, circuit and system implementation techniques, and energy issues to wireless connectivity solutions. It is written at a level suitable mainly for post-graduate level researchers interested in practical applications. The chapters are independent but complementary to each other, and the book works within the wider perspective of essential smart sensors for the Internet of Things (IoT). This is the second of ...

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    10. The Role of Multiple Imaging Modalities to Disclose the Mechanism of ACS Angioscopy in Comparison to Other Imaging Modalities Including OCT, IVUS and CTA (Book Chapter)

      The Role of Multiple Imaging Modalities to Disclose the Mechanism of ACS Angioscopy in Comparison to Other Imaging Modalities Including OCT, IVUS and CTA (Book Chapter)

      This book presents a thorough review of coronary angioscopy, ranging from instructions on its use to the latest advances. Starting with the structure and fundamental principles of angioscopy, it shows readers how to apply the image to comprehensive care of coronary-artery patients. Plentiful color photos and illustrations will enable readers to investigate and classify plaques and thrombi and to evaluate coronary stent- and drug-based therapies. The authors are leading researchers on angioscopy. This book offers the perfect guide not only for new clinicians but also for cardiologists who have already adopted this technique for medical examination and treatment. Angioscopy is ...

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    11. Optical Coherence Tomography: Technology and Applications Second Edition (Textbook)

      Optical Coherence Tomography: Technology and Applications Second Edition (Textbook)

      New medical imaging technologies can improve the diagnosis and clinical management of many diseases. Furthermore, advanced imaging also contributes to a better understanding of pathogenesis and therefore to the development of new pharmaceuticals and novel therapies. Thus, imaging plays a critical role in modern medical research and clinical practice. Noninvasive or minimally invasive imaging techniques have revolutionized diagnostic medicine during the last decades, e.g., X-ray computed tomography (CT), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), radioisotope imaging (position emission tomography (PET)), single-photon emission computed tomography (SPECT), and diffuse optical tomography (DOT). These techniques permit three-dimensional visualization; however ...

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    12. Mathematical Methods of Optical Coherence Tomography (Book Chapter)

      Mathematical Methods of Optical Coherence Tomography (Book Chapter)

      In this chapter a general mathematical model of Optical Coherence Tomography (OCT) is presented on the basis of the electromagnetic theory. OCT produces high-resolution images of the inner structure of biological tissues. Images are obtained by measuring the time delay and the intensity of the backscattered light from the sample considering also the coherence properties of light. The scattering problem is considered for a weakly scattering medium located far enough from the detector. The inverse problem is to reconstruct the susceptibility of the medium given the measurements for different positions of the mirror. Different approaches are addressed depending on the ...

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    13. Interventional Cardiology Imaging (Textbook)

      Interventional Cardiology Imaging (Textbook)

      Ever since the establishment of invasive coronary angiography, the limitations of the technique have not gone unnoticed. As a result, multiple invasive imaging modalities have been developed in an attempt to characterize the true severity of coronary artery disease as well as guide the percutaneous coronary interventions. Invasive imaging modalities have included ultrasound, optical, and chemographic technologies. Moreover, physiological assessment of the degree of the coronary blood fl ow has also been performed through fractional and coronary fl ow assessments. This book provides an overview of the current available invasive coronary imaging modalities in an attempt to present a concise ...

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    14. Optical Coherence Tomography in Neurologic Diseases (Textbook)

      Optical Coherence Tomography in Neurologic Diseases (Textbook)

      Optical coherence tomography [OCT] provides tissue morphology imagery at much higher resolution than other imaging modalities such as MRI or ultrasound, and the machines are comparatively cheaper. It is an easy technique to perform; is non-ionizing, and therefore safe. These benefits are driving a rapid transformation of OCT, from its principal application as a research tool, into an extension of the 'neurological examination' in routine office practice. Originally used in assessing the severity of tissue damage and prognosis of multiple sclerosis and various neuro-ophthalmic conditions, OCT is increasingly used in other neurological disorders such as Parkinson's disease, ALS, and ...

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    15. Clinical OCT Angiography Atlas (Textbook)

      Clinical OCT Angiography Atlas (Textbook)

      Guide to the understanding and interpretation of Angio-OCT · Provides complete overview of technique and interpretation, including terminology · Describes use of OCT for diagnosis of ocular diseases and disorders in different parts of the eye, and future developments · Highly illustrated with more than 250 clinical images · Internationally recognised editor and author team comprising leading clinicians and researchers in ophthalmology and OCT imaging

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    16. Optical Devices in Ophthalmology and Optometry: Technology, Design Principles and Clinical Application (Textbook)

      Optical Devices in Ophthalmology and Optometry: Technology, Design Principles and Clinical Application (Textbook)

      Medical technology is a fast growing field. This new title gives a comprehensive review of modern optical technologies alongside their clinical deployment. It bridges the technology and clinical domains and will be suitable in both technical and clinical environments. It introduces and develops basic physical methods (in optics, photonics, and metrology) and their applications in the design of optical systems for use in medical technology with a special focus on ophthalmology. Medical applications described in detail demonstrate the advantage of utilizing optical-photonic methods. Exercises and solutions for each chapter help understand and apply basic principles and methods. An associated website ...

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    17. Optical Coherence Tomography Guided Laser-Cochleostomy (Textbook)

      Optical Coherence Tomography Guided Laser-Cochleostomy (Textbook)

      Despite the high precision of laser, it remains challenging to control the laser-bone ablation without injuring the underlying critical structures. Providing an axial resolution on micrometre scale, OCT is a promising candidate for imaging microstructures beneath the bone surface and monitoring the ablation process. In this work, a bridge connecting these two technologies is established. A closed-loop control of laser-bone ablation under the monitoring with OCT has been successfully realised.

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    18. Optical Coherence Tomography (Textbook)

      Optical Coherence Tomography (Textbook)

      This book presents the state-of-the-art information regarding optical coherence tomography. Optical coherence tomography (OCT) is an imaging technique providing high-resolution cross-sectional images in several fields of engineering and medicine. OCT images are created by measuring the intensity of reflected or back scattered light which is scanned across the tissue and material. The aim of this book is to present elaborative information on OCT in a wide spectrum of fields including oncology, engineering, ophthalmology and atherosclerosis

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    19. Optical Coherence Tomography. ESASO Course Series Vol. 4 (Textbook)

      Optical Coherence Tomography. ESASO Course Series Vol. 4 (Textbook)

      The introduction of optical coherence tomography (OCT) into routine clinical practice has massively increased the amount and diversity of information regarding the living retina, and radically changed the understanding and management of almost every retinal disease. Producing an up-to-date book on OCT amid a high technological turnover and rapidly evolving concepts is a challenging task. The authors have succeeded in their mission by selecting certain common and controversial topics rather than attempting to be all-inclusive. This softcover book with 134 pages is a compilation of 15 articles co-authored by 40 contributors forming an international panel of well-respected experts. Each chapter ...

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    20. Advanced Endoscopic Imaging in the Upper Gastrointestinal Tract (Textbook)

      Advanced Endoscopic Imaging in the Upper Gastrointestinal Tract (Textbook)

      Advanced endoscopic imaging incorporates several methods to enhance visualization of the upper gastrointestinal tract. It is an evolving field within advanced endoscopy and particularly important for the endoscopist performing ESD, as these modalities can aid all stages of ESD. Advanced imaging involves several different techniques, from chromoendoscopy (e.g. Lugol’s solution, methylene blue, indigo carmine), to optical enhancement methods (e.g. magnified endoscopy, narrow band imaging, confocal endomicroscopy) and electronic methods (e.g. spectrometry, optical coherence tomography). Frequently, a combination of techniques is utilized to maximize visualization of the lesion and surrounding mucosa. The endoscopist performing ESD needs to ...

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    21. Noninvasive Ocular Angiography by Optical Coherence Tomography (Book Chapter)

      Noninvasive Ocular Angiography by Optical Coherence Tomography (Book Chapter)

      Diabetic retinopathy, age-related macular degeneration, and glaucoma are all associated with impaired circulation. Noninvasive assessment of ocular circulation would be very powerful for understanding and diagnosing these eye diseases. Using high-speed optical coherence tomography (OCT), we developed a new OCT angiography algorithm called split-spectrum amplitude-decorrelation angiography (SSADA) for imaging ocular microcirculation. Here, the system and theory of this novel OCT angiography technique are reviewed; its capabilities for imaging retinal, choroidal, and optic nerve head blood flow are demonstrated; and its limitation is discussed.

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    22. Chemical Strategies for the Development of Multimodal Imaging Probes Using Nanoparticles (Book Chapter)

      Chemical Strategies for the Development of Multimodal Imaging Probes Using Nanoparticles (Book Chapter)

      This chapter focuses on the most recently reported nanoparticle agents that have been demonstrated in vivo . It describes the general methods of chemical conjugations, silanisation, and electrostatic adsorption. The chapter examines the recent use of nanoparticles that incorporate a fluorescent dye and a magnetic nanoparticle together. The combination of near-infrared (NIR) and magnetic resonance imaging (MRI) modalities and in vivo characterisation has been executed in two ways: attaching an organic NIR dye to a superparamagnetic iron oxide nanoparticle (SPION); and combining SPIONs with a materials-based NIR fluorescent species such as a quantum dot or multilayered gold/silica nanoparticles. Upconversion luminescence ...

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    23. Imaging of cardiovascular development in Mammalian embryos using optical coherence tomography (Book Chapter)

      Imaging of cardiovascular development in Mammalian embryos using optical coherence tomography (Book Chapter)

      The cardiovascular system is the first functional organ system to develop within the mammalian embryo. During the early stages of cardiovascular development, the heart and blood vessels undergo rapid growth and remodeling required for embryo viability, proper morphogenesis, and the function of all organ systems. Live imaging of these dynamic events in early mouse embryos is critical to understanding when and how these morphological changes occur during normal development and how mutations and pharmacological agents affect cardiovascular structure and function in vivo. The use of optical coherence tomography (OCT) allows for rapid, three-dimensional structural and functional imaging of mouse embryos ...

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    24. Optical Coherence Tomography to Assess Neurodegeneration in Multiple Sclerosis (Book Chapter)

      Optical Coherence Tomography to Assess Neurodegeneration in Multiple Sclerosis (Book Chapter)

      Retinal spectral domain optical coherence tomography (OCT) has emerged as a clinical and research tool in multiple sclerosis (MS) and optic neuritis (ON). This chapter summarizes a short OCT protocol as included in international consensus guidelines. The protocol was written for hands-on style such that both clinicians and OCT technicians can make use of it. The protocol is suitable for imaging of the optic nerve head and macular regions as a baseline for follow-up investigations, individual layer segmentation, and diagnostic assessment.

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    1-24 of 116 1 2 3 4 5 »
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