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Spectral Photon Counting Computed Tomography
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Book Synopsis Spectral, Photon Counting Computed Tomography by : Katsuyuki Taguchi
Download or read book Spectral, Photon Counting Computed Tomography written by Katsuyuki Taguchi and published by CRC Press. This book was released on 2020-07-14 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectral, Photon Counting Computed Tomography is a comprehensive cover of the latest developments in the most prevalent imaging modality (x-ray computed tomography (CT)) in its latest incarnation: Spectral, Dual-Energy, and Photon Counting CT. Disadvantages of the conventional single-energy technique used by CT technology are that different materials cannot be distinguished and that the noise is larger. To address these problems, a novel spectral CT concept has been proposed. Spectral Dual-Energy CT (DE-CT) acquires two sets of spectral data, and Spectral Photon Counting CT (PC-CT) detects energy of x-ray photons to reveal additional material information of objects by using novel energy-sensitive, photon-counting detectors. The K-edge imaging may be a gateway for functional or molecular CT. The book covers detectors and electronics, image reconstruction methods, image quality assessments, a simulation tool, nanoparticle contrast agents, and clinical applications for spectral CT.
Book Synopsis Spectral, Photon Counting Computed Tomography by : Katsuyuki Taguchi
Download or read book Spectral, Photon Counting Computed Tomography written by Katsuyuki Taguchi and published by CRC Press. This book was released on 2020-07-15 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectral, Photon Counting Computed Tomography is a comprehensive cover of the latest developments in the most prevalent imaging modality (x-ray computed tomography (CT)) in its latest incarnation: Spectral, Dual-Energy, and Photon Counting CT. Disadvantages of the conventional single-energy technique used by CT technology are that different materials cannot be distinguished and that the noise is larger. To address these problems, a novel spectral CT concept has been proposed. Spectral Dual-Energy CT (DE-CT) acquires two sets of spectral data, and Spectral Photon Counting CT (PC-CT) detects energy of x-ray photons to reveal additional material information of objects by using novel energy-sensitive, photon-counting detectors. The K-edge imaging may be a gateway for functional or molecular CT. The book covers detectors and electronics, image reconstruction methods, image quality assessments, a simulation tool, nanoparticle contrast agents, and clinical applications for spectral CT.
Download or read book Spectral Imaging written by Hatem Alkadhi and published by Springer Nature. This book was released on 2022-05-02 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, edited by leading experts in radiology, offers a state-of-the-art overview of the specifics and the added value of dual-energy, multi-energy, and spectral computed tomography (CT). Latest advances and upcoming innovations such as photon-counting detector CT are covered by renown experts in the field. The entire spectrum of clinical applications of dual-energy and spectral CT throughout the body is covered. Book chapters are written by expert authors with a background in physics and radiology and are richly illustrated with high quality figures, graphical illustrations, and tables. The first section covers background issues and the most relevant technical aspects of the technique, including a detailed description of the approaches to dual-energy, spectral and photon-counting CT by different vendors of CT scanners. The second part focusses on the use of dual-energy, spectral and photon-counting CT in daily clinical practice, and individual chapters are devoted to imaging of the brain, cardiovascular system, gastrointestinal tract, abdominal organs, skeletal system, and the chest. The focus of the book ensures that it will be of interest for a multidisciplinary forum of readers comprising radiologists, medical physicists, and other medical professionals and scientists being interested in cutting-edge CT imaging.
Book Synopsis Molecular Quantification with Spectral Photon-counting Computed Tomography for New Diagnostic Imaging Applications by : Connor J. Evans
Download or read book Molecular Quantification with Spectral Photon-counting Computed Tomography for New Diagnostic Imaging Applications written by Connor J. Evans and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spectral Photon-Counting Computed Tomography with Silicon Detectors: New Models and Applications by : Fredrik Grönberg
Download or read book Spectral Photon-Counting Computed Tomography with Silicon Detectors: New Models and Applications written by Fredrik Grönberg and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Björn J. Heismann Publisher :SPIE-International Society for Optical Engineering ISBN 13 :9780819492579 Total Pages :0 pages Book Rating :4.4/5 (925 download)
Book Synopsis Spectral Computed Tomography by : Björn J. Heismann
Download or read book Spectral Computed Tomography written by Björn J. Heismann and published by SPIE-International Society for Optical Engineering. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computed tomography (CT) is a widely used x-ray scanning technique. In its prominent use as a medical imaging device, CT serves as a workhorse in many clinical settings throughout the world. It provides answers to urgent diagnostic tasks such as oncology tumor staging, acute stroke analysis, or radiation therapy planning. Spectral Computed Tomography provides a concise, practical coverage of this important medical tool. The first chapter considers the main clinical motivations for spectral CT applications. In Chapter 2, the measurement properties of spectral CT systems are described. Chapter 3 provides an overview of the current state of research on spectral CT algorithms. Based on this overview, the technical realization of spectral CT systems is evaluated in Chapter 4. Device approaches such as DSCT, kV switching, and energy-resolving detectors are compared. Finally, Chapter 5 summarizes various algorithms for spectral CT reconstructions and spectral CT image postprocessing, and links these algorithms to clinical use cases
Book Synopsis Photon Counting Computed Tomography by : Scott Hsieh
Download or read book Photon Counting Computed Tomography written by Scott Hsieh and published by Springer Nature. This book was released on 2023-05-27 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will provide readers with a good overview of some of most recent advances in the field of Photon Counting CT technology for X-ray medical imaging, especially as it pertains to new detectors. There will be a good mixture of general chapters in both technology and applications in CT medical imaging. The book will have an in-depth review of the research topics from world-leading specialists in the field. The conversion of the X-ray signal into analogue/digital value will be covered in some chapters. The authors also provide a review of CMOS chips for X-ray image sensors, methods of material discrimination and image reconstruction techniques. Covers a broad range of topics, including an introduction to novel spectral Computed Tomography; Includes in-depth analysis on how to optimize X-ray detection; Discusses analysis of electronics for X-ray detection.
Book Synopsis Computed Tomography by : Ehsan Samei
Download or read book Computed Tomography written by Ehsan Samei and published by Springer. This book was released on 2019-12-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive and topical depiction of advances in CT imaging. CT has become a leading medical imaging modality, thanks to its superb spatial and temporal resolution to depict anatomical details. New advances have further extended the technology to provide physiological information, enabling a wide and expanding range of clinical applications. The text covers the latest advancements in CT technology and clinical applications for a variety of CT types and imaging methods. The content is presented in seven parts to offer a structure across a board coverage of CT: CT Systems, CT Performance, CT Practice, Spectral CT, Quantitative CT, Functional CT, and Special Purpose CT. Each contain chapters written by leading experts in the field, covering CT hardware and software innovations, CT operation, CT performance characterization, functional and quantitative applications, and CT systems devised for specific anatomical applications. This book is an ideal resource for practitioners of CT applications in medicine, including physicians, trainees, engineers, and scientists.
Book Synopsis Spectral Computed Tomography with a Photon-Counting Silicon-Strip Detector by : Mats Persson
Download or read book Spectral Computed Tomography with a Photon-Counting Silicon-Strip Detector written by Mats Persson and published by . This book was released on 2016 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spectral Multi-Detector Computed Tomography (sMDCT) by : Xiangyang Tang
Download or read book Spectral Multi-Detector Computed Tomography (sMDCT) written by Xiangyang Tang and published by CRC Press. This book was released on 2023-12-11 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray computed tomography (CT) has been one of the most popular diagnostic imaging modalities for decades in the clinic for saving patients’ lives or improving their quality of life. This book is an introductory one-stop shop for technological and clinical topics in multi-detector computed tomography (MDCT). Starting with MDCT’s fundamentals in physics and mathematics, the book provides an in-depth introduction to its system architecture and imaging chain, signal detection via energy-integration and photon-counting mechanisms, clinical application-driven scan modes and protocols, analytic and iterative image reconstruction solutions, and spectral imaging – the latest technological advancement in MDCT. The book extends its coverage on image quality assessment under the theory of signal detection and statistical decision. In recognition of its clinical relevance for conspicuity enhancement in angiographic and parenchymal imaging applications, the book features a chapter dedicated to the fundamental (chemical, physical and physicochemical) properties and clinical administration of iodinated contrast agent. The book ends with an outlook of the contrast agents that are novel in material and delivery, and their synergy with spectral MDCT to elevate CT’s contrast resolution in cardiovascular, neurovascular and oncologic applications. This book will be an invaluable reference for researchers, engineers, radiological physicians and technologists, and graduate and senior undergraduate students. Features Provides an accessible introduction to the subject Up to date with the latest advances in emerging technologies and procedures Provides a historical overview of CT technology Xiangyang Tang, PhD, is an imaging scientist with extensive research and development experience in industry (GE Healthcare), academia (Emory University School of Medicine) and the clinic (Emory Healthcare). With a focus on computed tomography, Tang has been working in the field of medical imaging for more than 20 years. He is a professor of radiology and imaging sciences at Emory University School of Medicine, Fellow of SPIE (International Society for Optics and Photonics) and Fellow of AAPM (American Association of Physicists in Medicine). Along with the publication of more than 200 papers in leading scientific journals and conferences, his contributions to the scientific community include serving as associate editor for a number of prestigious journals, in addition to working on the scientific committees of leading conferences and panels for numerous federal and foundational study sections.
Book Synopsis Multislice CT by : Konstantin Nikolaou
Download or read book Multislice CT written by Konstantin Nikolaou and published by Springer. This book was released on 2019-08-06 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourth edition of this well-received book offers a comprehensive update on recent developments and trends in the clinical and scientific applications of multislice computed tomography. Following an initial section on the most significant current technical aspects and issues, detailed information is provided on a comprehensive range of diagnostic applications. Imaging of the head and neck, the cardiovascular system, the abdomen, and the lungs is covered in depth, describing the application of multislice CT in a variety of tumors and other pathologies. Emerging fields such as pediatric imaging and CT-guided interventions are fully addressed, and emergency CT is also covered. Radiation exposure, dual-energy imaging, contrast enhancement, image postprocessing, CT perfusion imaging, and CT angiography all receive close attention. The new edition has been comprehensively revised and complemented by contributions from highly experienced and well-known authors who offer diverse perspectives, highlighting the possibilities offered by the most modern multidetector CT systems. This book will be particularly useful for general users of CT systems who wish to upgrade and enhance not only their machines but also their knowledge.
Book Synopsis Neuroimaging Techniques in Clinical Practice by : Manoj Mannil
Download or read book Neuroimaging Techniques in Clinical Practice written by Manoj Mannil and published by Springer Nature. This book was released on 2020-08-11 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise overview of emerging technologies in the field of modern neuroimaging. Fundamental principles of the main imaging modalities are described as well as advanced imaging techniqes including diffusion weighted imaging, perfusion imaging, arterial spin labeling, diffusion tensor imaging, intravoxel incoherent motion, MR spectroscopy, functional MRI, and artificial intelligence. The physical concepts underlying each imaging technique are carefully and clearly explained in a way suited to a medical audience without prior technical knowledge. In addition, the clinical applications of the various techniques are described with the aid of illustrative clinical examples. Helpful background information is also presented on the core principles of MRI and the evolution of neuroimaging, and important references to current medical research are highlighted. The book will meet the needs of a range of non-technological professionals with an interest in advanced neuroimaging, including radiology researchers and clinicians in the fields of neurology, neurosurgery, and psychiatry.
Book Synopsis Medical Imaging by : Krzysztof Iniewski
Download or read book Medical Imaging written by Krzysztof Iniewski and published by John Wiley & Sons. This book was released on 2009-02-18 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: A must-read for anyone working in electronics in the healthcare sector This one-of-a-kind book addresses state-of-the-art integrated circuit design in the context of medical imaging of the human body. It explores new opportunities in ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), nuclear medicine (PET, SPECT), emerging detector technologies, circuit design techniques, new materials, and innovative system approaches. Divided into four clear parts and with contributions from a panel of international experts, Medical Imaging systematically covers: X-ray imaging and computed tomography–X-ray and CT imaging principles; Active Matrix Flat Panel Imagers (AMFPI) for diagnostic medical imaging applications; photon counting and integrating readout circuits; noise coupling in digital X-ray imaging Nuclear medicine–SPECT and PET imaging principles; low-noise electronics for radiation sensors Ultrasound imaging–Electronics for diagnostic ultrasonic imaging Magnetic resonance imaging–Magnetic resonance imaging principles; MRI technology
Book Synopsis Overcoming Spectral Inconsistency-induced Image Artifacts in Photon Counting CT Systems by : Mang Feng
Download or read book Overcoming Spectral Inconsistency-induced Image Artifacts in Photon Counting CT Systems written by Mang Feng and published by . This book was released on 2021 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photon counting detectors (PCDs) use semiconductors such as silicon (Si) or cadmium telluride (CdTe) to directly convert the energy of X-rays to electric (i.e. voltage) pulse signals. The seminconductor sensor and readout electronics of PCDs are fast enough such that the pulses induced by individual X-ray photons can be discriminated and recorded as separate digital counts. Compared with conventional scintillator-based indirect-conversion detectors, the direct conversion mechanism of PCDs can effectively improve spatial resolution. PCDs are equipped with voltage comparators to effectively reject electronic noise and improve images' contrast-to-noise ratio, particularly at low radiation dose levels. By introducing multiple comparators to each detector pixel, the energy of each X-ray photon can be estimated based on the height of the voltage pulse. These attractive features of PCDs offer the potential of further reducing radiation dose and achieving routine spectral imaging in x-ray computed tomography (CT). However, there is a technical challenge in the way of using PCD in clinical CT: the energy response functions of PCDs are inconsistency across different semiconductor panels due to slight variations in the semiconductor impurity level, threshold voltage, and other physical reasons. This spectral inconsistency problem leads to concentric artifacts in reconstructed PCD-CT images that severely degrade low-contrast detectability and material quantification accuracy. This thesis presents two methods to address the spectral inconsistency-induced concentric artifacts in PCD-CT: The first method method leverages the energy-resolving capability of PCDs to perform project-domain material decomposition to decouple the image object's information from the detector response function. The second method does not require a PCD to be operated under the spectral imaging mode; instead, it uses an image-domain segmentation process to help estimating the non-water contents in an image object, based on which detector pixel-specific correction functions were applied to address the nonuniformity in the raw projection data. Both methods were experimentally evaluated on a benchtop PCD-CT system and a prototype C-arm PCD-CT system with human-sized phantoms, human cadavers, and in vivo large animals. The experimental results demonstrated that the spectral inconsistency-induced artifacts in PCD-CT can be effectively addressed with the proposed methods. Finally, this thesis demonstrates examples of how the correction methods can be employed to accomplish high-quality and quantitative virtual non-contrast imaging, virtual monoenergetic imaging, and dual K-edge contrast material PCD-CT imaging.
Book Synopsis Gastrointestinal Imaging by : Angela D. Levy
Download or read book Gastrointestinal Imaging written by Angela D. Levy and published by Rotations in Radiology. This book was released on 2015 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a comprehensive review of gastrointestinal pathologies commonly encountered by practising radiologists and residents in training. The chapters are organised by organ system and include the pharynx and esophagus, stomach, small bowel, appendix, colon, anorectum, liver, gallbladder, bile ducts, pancreas, spleen, peritoneum, mesentery, and abdominal wall, and one on multisystem disorders. The book offers a guided approach to imaging diagnosis with examples of all imaging modalities complimented by the basics of technique and interpretation and the nuances necessary to reach the best diagnosis.
Book Synopsis Cardiovascular Computed Tomography by : James Stirrup
Download or read book Cardiovascular Computed Tomography written by James Stirrup and published by Oxford University Press, USA. This book was released on 2020-01-02 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen a marked increase in cardiovascular computed tomography (CT) imaging, with the technique now integrated into many imaging guidelines, such as those published by ESC and NICE. Rapid clinical and technological progress has created a need for guidance on the practical aspects of CT image acquisition, analysis and interpretation. The Oxford Specialist Handbook of Cardiovascular CT, now revised for the second edition by practising international experts with many years of hands-on experience, is designed to fulfil this need. The Handbook is a practical guide on performing, analysing and interpreting cardiovascular CT scans, covering all aspects from patient safety to optimal image acquisition to differential diagnoses of tricky images. It takes an international approach to both accreditation and certification, highlighting British, European, and American examinations and courses. The format is designed to be accessible and is laid out in easy to navigate sections. It is meant as a quick-reference guide, to live near the CT scanner, workstation, or on the office shelf. The Handbook is aimed at all cardiovascular CT users (Cardiologists, Radiologists and Radiographers), particularly those new to cardiovascular CT, although even the advanced user should find useful tips and tricks within.
Book Synopsis Advanced X-ray Detector Technologies by : Krzysztof (Kris) Iniewski
Download or read book Advanced X-ray Detector Technologies written by Krzysztof (Kris) Iniewski and published by Springer Nature. This book was released on 2022-01-10 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers readers an overview of some of the most recent advances in the field of detectors for X-ray imaging. Coverage includes both technology and applications, with an in-depth review of the research topics from leading specialists in the field. Emphasis is on high-Z materials like CdTe, CZT and perovskites, since they offer the best implementation possibilities for direct conversion X-ray detectors. Authors discuss material challenges, detector operation physics and technology and readout integrated circuits required to detect signals processes by high-Z sensors.
