Biomedical Optical Imaging

Biomedical Optical Imaging

Author: James G. Fujimoto

Publisher: Oxford University Press

Published: 2009-04-22

Total Pages: 435

ISBN-13: 0199722293

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Biomedical optical imaging is a rapidly emerging research area with widespread fundamental research and clinical applications. This book gives an overview of biomedical optical imaging with contributions from leading international research groups who have pioneered many of these techniques and applications. A unique research field spanning the microscopic to the macroscopic, biomedical optical imaging allows both structural and functional imaging. Techniques such as confocal and multiphoton microscopy provide cellular level resolution imaging in biological systems. The integration of this technology with exogenous chromophores can selectively enhance contrast for molecular targets as well as supply functional information on processes such as nerve transduction. Novel techniques integrate microscopy with state-of-the-art optics technology, and these include spectral imaging, two photon fluorescence correlation, nonlinear nanoscopy; optical coherence tomography techniques allow functional, dynamic, nanoscale, and cross-sectional visualization. Moving to the macroscopic scale, spectroscopic assessment and imaging methods such as fluorescence and light scattering can provide diagnostics of tissue pathology including neoplastic changes. Techniques using light diffusion and photon migration are a means to explore processes which occur deep inside biological tissues and organs. The integration of these techniques with exogenous probes enables molecular specific sensitivity.


Optical Coherence Tomography

Optical Coherence Tomography

Author: Wolfgang Drexler

Publisher: Springer Science & Business Media

Published: 2008-12-10

Total Pages: 1346

ISBN-13: 3540775501

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Optical coherence tomography (OCT) is the optical analog of ultrasound imaging and is emerging as a powerful imaging technique that enables non-invasive, in vivo, high resolution, cross-sectional imaging in biological tissue. This book introduces OCT technology and applications not only from an optical and technological viewpoint, but also from biomedical and clinical perspectives. The chapters are written by leading research groups, in a style comprehensible to a broad audience.


Novel Optical Endoscopes for Early Cancer Diagnosis and Therapy

Novel Optical Endoscopes for Early Cancer Diagnosis and Therapy

Author: Dale Jonathan Waterhouse

Publisher: Springer

Published: 2019-07-09

Total Pages: 161

ISBN-13: 3030214818

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This thesis describes the design, development, characterisation and clinical translation of three novel devices for optical endoscopic imaging. Over the past decade, rapid innovation in optics and photonics has led to the availability of low-cost and high-performance optical technologies that can be exploited for biomedical applications, but relatively few have been translated into clinic. The work presented outlines for the first time, a comprehensive analysis of the common barriers and unique challenges associated with the translation of optical imaging techniques. To assist developers streamline translation of optical imaging devices in future, a roadmap to clinical translation is outlined, and key translational characteristics are defined. Guided by these, subsequent development of endoscopic devices resulted in preparation and approval of endoscopes for first in human trials in the oesophagus, for early detection of cancer, and in the brain, for delineation of tumour during surgical resection. The thesis culminates in the presentation of results from the first in human use of a compact multispectral endoscope for imaging endogenous tissue contrast in the oesophagus. With continuation of the work as outlined at the end of this thesis, the novel techniques described have the potential to improve the standard of care in their respective indications.


Visualizing Chemistry

Visualizing Chemistry

Author: National Research Council

Publisher: National Academies Press

Published: 2006-06-01

Total Pages: 222

ISBN-13: 030916463X

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Scientists and engineers have long relied on the power of imaging techniques to help see objects invisible to the naked eye, and thus, to advance scientific knowledge. These experts are constantly pushing the limits of technology in pursuit of chemical imagingâ€"the ability to visualize molecular structures and chemical composition in time and space as actual events unfoldâ€"from the smallest dimension of a biological system to the widest expanse of a distant galaxy. Chemical imaging has a variety of applications for almost every facet of our daily lives, ranging from medical diagnosis and treatment to the study and design of material properties in new products. In addition to highlighting advances in chemical imaging that could have the greatest impact on critical problems in science and technology, Visualizing Chemistry reviews the current state of chemical imaging technology, identifies promising future developments and their applications, and suggests a research and educational agenda to enable breakthrough improvements.


Quantitative Magnetic Resonance Imaging

Quantitative Magnetic Resonance Imaging

Author: Nicole Seiberlich

Publisher: Academic Press

Published: 2020-11-18

Total Pages: 1094

ISBN-13: 0128170581

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Quantitative Magnetic Resonance Imaging is a 'go-to' reference for methods and applications of quantitative magnetic resonance imaging, with specific sections on Relaxometry, Perfusion, and Diffusion. Each section will start with an explanation of the basic techniques for mapping the tissue property in question, including a description of the challenges that arise when using these basic approaches. For properties which can be measured in multiple ways, each of these basic methods will be described in separate chapters. Following the basics, a chapter in each section presents more advanced and recently proposed techniques for quantitative tissue property mapping, with a concluding chapter on clinical applications. The reader will learn: - The basic physics behind tissue property mapping - How to implement basic pulse sequences for the quantitative measurement of tissue properties - The strengths and limitations to the basic and more rapid methods for mapping the magnetic relaxation properties T1, T2, and T2* - The pros and cons for different approaches to mapping perfusion - The methods of Diffusion-weighted imaging and how this approach can be used to generate diffusion tensor - maps and more complex representations of diffusion - How flow, magneto-electric tissue property, fat fraction, exchange, elastography, and temperature mapping are performed - How fast imaging approaches including parallel imaging, compressed sensing, and Magnetic Resonance - Fingerprinting can be used to accelerate or improve tissue property mapping schemes - How tissue property mapping is used clinically in different organs - Structured to cater for MRI researchers and graduate students with a wide variety of backgrounds - Explains basic methods for quantitatively measuring tissue properties with MRI - including T1, T2, perfusion, diffusion, fat and iron fraction, elastography, flow, susceptibility - enabling the implementation of pulse sequences to perform measurements - Shows the limitations of the techniques and explains the challenges to the clinical adoption of these traditional methods, presenting the latest research in rapid quantitative imaging which has the possibility to tackle these challenges - Each section contains a chapter explaining the basics of novel ideas for quantitative mapping, such as compressed sensing and Magnetic Resonance Fingerprinting-based approaches


Signs in MR-Mammography

Signs in MR-Mammography

Author: Werner A. Kaiser

Publisher: Springer Science & Business Media

Published: 2008-11-27

Total Pages: 399

ISBN-13: 3540732926

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Breast cancer is the leading cause of cancer-related deaths in women, and its prevalence has been steadily rising in recent decades. This book describes morphologic and kinetic signs that are important in the analysis of breast MR images before and after contrast administration and in various pulse sequences. It will help broaden the clinical application of MRM so that as many physicians as possible can make more accurate diagnoses.


Detection and Assessment of Dental Caries

Detection and Assessment of Dental Caries

Author: Andrea Ferreira Zandona

Publisher: Springer Nature

Published: 2019-11-06

Total Pages: 243

ISBN-13: 3030169677

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This book explains how to optimize clinical conditions for detection of the earliest visible signs of dental caries and how best to assess caries activity as a basis for effective management. The available evidence from the literature on detection criteria and methods is distilled and placed in a clinical context to facilitate implementation in clinical practice. Guidance is offered on removal of the dental biofilm and the potential impact of various factors on the performance of different caries detection devices. The histological changes that occur during the caries process and their effect on the clinical appearance of caries lesions are explained. In addition, several caries classification systems based on visual detection criteria and designed to allow staging are presented. Consideration is also given to currently marketed detection aids, including methods involving light fluorescence, transillumination, and radiography. In each case, a summary of the detection performance, based on available supporting evidence, is tabulated together with advice on appropriate clinical application. The reader will find the text to be clearly written and informative, with many supporting clinical images.


New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics

New Directions in Barrett's Esophagus, An Issue of Gastrointestinal Endoscopy Clinics

Author: Nicholas J. Shaheen

Publisher: Elsevier Health Sciences

Published: 2017-06-09

Total Pages: 217

ISBN-13: 0323531334

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Dr. Shaheen's issue of Gastrointestinal Endoscopy Clinics of North America addresses the current thinking and clinical decision making surrounding endoscopy for Barrett's Esophagus. Expert authors have contributed articles on the following topics: The Troublesome Epidemiology of Barrett’s Esophagus and Esophageal Adenocarcinoma; Who Deserves Endoscopic Screening for Esophageal Neoplasia; Alternatives to Traditional per oral Endoscopy for Screening; Effectiveness and Cost-Effectiveness of Endoscopic Screening and Surveillance; The Role of Adjunct Imaging in Endoscopic Detection of Dysplasia; Beyond Dysplasia Grade: The Role of Biomarkers in Stratifying Risk; Management of Nodular Neoplasia in Barrett’s Esophagus: Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection; EUS and Management of Superficial Esophageal Neoplasia; Radiofrequency Ablation of Barrett’s Esophagus: Patient Selection, Preparation, and Performance; Radiofrequency Ablation of Barrett’s Esophagus: Efficacy, Complications, and Durability; Cryotherapy of Barrett’s Esophagus; Care of the Post-Ablation Patient: Surveillance, Acid Suppression and Treatment of Recurrence; and Surgical Management of Superficial Esophageal Neoplasia. Readers will come away with the knowledge to diagnose and treat neoplasia and Barrett's Esophagus using the latest techniques.


Pediatric Neuro-Ophthalmology

Pediatric Neuro-Ophthalmology

Author: Michael C. Brodsky

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 692

ISBN-13: 1461384575

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Pediatric Neuroophthalmology details the diagnostic criteria, current concepts of pathogenesis, neuroradiological correlates, and clinical management of a large group of neuroophthalmic disorders that present in childhood. Surprisingly distinct from neuroophthalmic disorders afflicting adults, this set of diseases falls between the cracks of most ophthalmology training, and thus, warrants a practical, clinical guide for the practitioner in ophthalmology - the neuroophthalmologist, pediatric ophthalmologist, general ophthalmologist - as well as neurologists and for residents. The authors, leading pediatric ophthalmologists, have taken this difficult subject matter and developed an accessible, user-friendly manual with a detailed approach to the recognition, differential diagnosis, and management of pediatric neuroophthalmologic disorders.


Innovations in the Management of Foregut Disease, An Issue of Thoracic Surgery Clinics

Innovations in the Management of Foregut Disease, An Issue of Thoracic Surgery Clinics

Author: Brian Louie

Publisher: Elsevier Health Sciences

Published: 2018-09-27

Total Pages: 145

ISBN-13: 0323641350

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This issue of Thoracic Surgery Clinics of North America, guest edited by Dr. Brian E. Louie, is devoted to Innovations in the Management of Foregut Disease. Dr. Louie has assembled expert authors to review the following topics: Endoscopic approaches to cricopharyngeal myotomy and pyloromyotomy; Options for the challenging hiatus during paraesophageal hernia repair; Endoluminal therapies for esophageal perforations and leaks; Extraluminal approaches to GERD; Advanced endoluminal technologies for Barrett's esophagus - focus on OCT and CLE; Mucosal ablation techniques for Barrett's esophagus and early esophageal cancer; Best practices for training, education and introduction of new techniques for foregut disease management into clinical practice; Per Oral Endoscopic Myotomy (POEM) for Achalasia; Endoscopic resection of tumors of the esophagus; The role of the functional probe in esophageal disease; Enhance the detection of Barrett's esophagus; Endoluminal approaches to GERD; The role of functional fluorescence imaging during esophagectomy; and more!