3D Image Reconstruction for PET by Multi-slice Rebinning and Axial Filtering. [Positron Emission Tomography (PET)]. PDF Download
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Languages : en
Pages : 9
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Book Description
Two different approaches are used at present to reconstruct from 3D coincidence data in PET. We refer to these approaches as the single-slice rebinning approach and the fully-3D approach. The single-slice rebinning approach involves geometrical approximations, but it requires the least possible amount of computation. Fully-3D reconstruction algorithms, both iterative and non-iterative, do not make such approximations, but require much more computation. Multi-slice rebinning with axial filtering is a new approach which attempts to achieve the geometrical accuracy of the fully-3D approach with the simplicity and modest amount of computation of the single-slice rebinning approach. The first step (multi-slice rebinning) involves rebinning of coincidence lines into a stack of 2D sinograms, where multiple sinograms are incremented for each oblique coincidence line. This operation is followed by an axial filtering operation, either before or after slice-by-slice reconstruction, to reduce the blurring in the axial direction. Tests with simulated and experimental data indicate that the new method has better geometrical accuracy than single-slice rebinning, at the cost of only a modest increase in computation. 11 refs.
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
Two different approaches are used at present to reconstruct from 3D coincidence data in PET. We refer to these approaches as the single-slice rebinning approach and the fully-3D approach. The single-slice rebinning approach involves geometrical approximations, but it requires the least possible amount of computation. Fully-3D reconstruction algorithms, both iterative and non-iterative, do not make such approximations, but require much more computation. Multi-slice rebinning with axial filtering is a new approach which attempts to achieve the geometrical accuracy of the fully-3D approach with the simplicity and modest amount of computation of the single-slice rebinning approach. The first step (multi-slice rebinning) involves rebinning of coincidence lines into a stack of 2D sinograms, where multiple sinograms are incremented for each oblique coincidence line. This operation is followed by an axial filtering operation, either before or after slice-by-slice reconstruction, to reduce the blurring in the axial direction. Tests with simulated and experimental data indicate that the new method has better geometrical accuracy than single-slice rebinning, at the cost of only a modest increase in computation. 11 refs.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Get Book Here
Book Description
Two different approaches are used at present to reconstruct from 3D coincidence data in PET. We refer to these approaches as the single-slice rebinning approach and the fully-3D approach. The single-slice rebinning approach involves geometrical approximations, but it requires the least possible amount of computation. Fully-3D reconstruction algorithms, both iterative and non-iterative, do not make such approximations, but require much more computation. Multi-slice rebinning with axial filtering is a new approach which attempts to achieve the geometrical accuracy of the fully-3D approach with the simplicity and modest amount of computation of the single-slice rebinning approach. The first step (multi-slice rebinning) involves rebinning of coincidence lines into a stack of 2D sinograms, where multiple sinograms are incremented for each oblique coincidence line. This operation is followed by an axial filtering operation, either before or after slice-by-slice reconstruction, to reduce the blurring in the axial direction. Tests with simulated and experimental data indicate that the new method has better geometrical accuracy than single-slice rebinning, at the cost of only a modest increase in computation. 11 refs.
Author: Robert M. Lewitt
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Book Description
Author: B. Bendriem
Publisher: Springer Science & Business Media
ISBN: 9401734755
Category : Medical
Languages : en
Pages : 180
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Book Description
The application of 3D methodology has recently been receiving increasing attention at many PET centres, and this monograph is an attempt to provide a state-of-the-art review of this methodology, covering 3D reconstruction methods, quantitative procedures, current tomography performance, and clinical and research applications. No such review has been available until now to assist PET researchers in understanding and implementing 3D methodology, and in evaluating the performance of the available imaging technology. In all the chapters, the subject matter is treated in sufficient depth to appeal equally to the physicist or engineer who wishes to establish the methodology, and to PET investigators with experience in 2D PET who wish to familiarize themselves with the concepts and advantages of 3D, and to be made aware of the pitfalls.
Author: E. Edmund Kim
Publisher: Springer Science & Business Media
ISBN: 1441908021
Category : Medical
Languages : en
Pages : 395
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Book Description
Clinical PET and PET/CT, 2nd Edition presents a valuable overview of the basic principles and clinical applications of PET and PET/CT. Emphasis is placed on the familiarization of normal distribution, artifacts, and common imaging agents such as FDG in conjunction with CT, MRI, and US to establish the clinical effectiveness of PET and PET/CT. Practical information about updated PET and PET/CT scanners, imaging processing, correlation, and quantification of PET and PET/CT measurements is also presented. This book is divided into two sections, the first half dealing with the basic principles of PET and PET/CT for instrumentation, fusion, radiopharmaceuticals, radiosynthesis, safety, and cost analysis. The second part of this volume presents chapters on the clinical techniques and applications of PET and PET/CT for common oncologic, cardiologic, and neurologic diseases. Numerous full color images provide comprehensive coverage on essential clinical PET and PET/CT studies.
Author: Jie Tian
Publisher: Springer Science & Business Media
ISBN: 3642343031
Category : Science
Languages : en
Pages : 707
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Book Description
"Molecular Imaging: Fundamentals and Applications" is a comprehensive monograph which describes not only the theory of the underlying algorithms and key technologies but also introduces a prototype system and its applications, bringing together theory, technology and applications. By explaining the basic concepts and principles of molecular imaging, imaging techniques, as well as research and applications in detail, the book provides both detailed theoretical background information and technical methods for researchers working in medical imaging and the life sciences. Clinical doctors and graduate students will also benefit from this book. Jie Tian is a professor at the Institute of Automation, Chinese Academy of Sciences, China.
Author: E. Edmund Kim
Publisher: Springer Science & Business Media
ISBN: 0387225307
Category : Medical
Languages : en
Pages : 408
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Book Description
PET has been a valuable research tool in academic institutions since the '70s, but its move into clinical practice in community hospitals has just begun. PET has undergone spectacular growth in the fields of nuclear medicine, radiology, and oncology. The burgeoning world of PET is reflected in standing room only CME courses at scientific meetings such as the Radiology Society of North America and the Society for Nuclear Medicine. This book will provide nuclear medicine practitioners, radiologists, oncologists, and neurologists with a practical overview of the basic principles and clinical applications of PET. Emphasis is placed on the familiarization of normal distribution, artefacts, and common imaging agents such as FDG in conjunction with CT, MRI, and US to establish the clinical effectiveness of PET. Practical understanding of updated PET scanners, image process and quantification of PET measurements is also discussed. With contributions from leaders in the PET community, the book deals with the basic principles, instrumentation, fusion, radiopharmaceuticals, radiosynthesis, safety and cost analysis of PET. The clinical section of the book will focus on the technique and indications of PET. There is also a unique atlas as well as comprehensive coverage of essential clinical PET studies in neurology, cardiology, and oncology.
Author: Martin Charron
Publisher: Springer Science & Business Media
ISBN: 0387346414
Category : Medical
Languages : en
Pages : 605
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Book Description
Positron emission tomography (PET) has been at the forefront of fu- tional and molecular imaging for a number of years. The future of di- nostic imaging depends upon the ability to change from imaging anatomy to examining the processes at work in the body. The fact that there are now monographs examining particular aspects of PET, such as this book on the examination of children, speaks to the newly won maturity of PET. The authors are to be congratulated for the timely appearance of this volume. In recent years, PET has transformed the contributions of nuclear medicine to the diagnosis, staging, and follow-up of patients with cancer. Children with cancer deserve the very best and most comp- sionate care that society can provide. Ultimately the greatest comp- sion we can offer as physicians is to provide the best possible care. Those charged with creating public policy in the context of diagnostic medicine must make common cause with physicians and other sci- tists to ensure that that best possible care is realized at the bedside. All of the evidence suggests that PET is central to such optimal cancer care. In addition to the distinguished cast of physicians and researchers who contributed to this book, I welcome the contributions from te- nologists who are a key part of the interaction between the diagnostic process and the sick or potentially sick child. Good care is contingent upon putting parents and child at ease, and the technologist has a lead role in this.
Author: Pierre Grangeat
Publisher: Springer Science & Business Media
ISBN: 9401587493
Category : Medical
Languages : en
Pages : 313
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Book Description
This book contains a selection of communications presented at the Third International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, held 4-6 July 1995 at Domaine d' Aix-Marlioz, Aix-Ies-Bains, France. This nice resort provided an inspiring environment to hold discussions and presentations on new and developing issues. Roentgen discovered X-ray radiation in 1895 and Becquerel found natural radioactivity in 1896 : a hundred years later, this conference was focused on the applications of such radiations to explore the human body. If the physics is now fully understood, 3D imaging techniques based on ionising radiations are still progressing. These techniques include 3D Radiology, 3D X-ray Computed Tomography (3D-CT), Single Photon Emission Computed Tomography (SPECT), Positron Emission Tomography (PET). Radiology is dedicated to morphological imaging, using transmitted radiations from an external X-ray source, and nuclear medicine to functional imaging, using radiations emitted from an internal radioactive tracer. In both cases, new 3D tomographic systems will tend to use 2D detectors in order to improve the radiation detection efficiency. Taking a set of 2D acquisitions around the patient, 3D acquisitions are obtained. Then, fully 3D image reconstruction algorithms are required to recover the 3D image of the body from these projection measurements.
Author: Dale L. Bailey
Publisher: Springer Science & Business Media
ISBN: 1846280079
Category : Medical
Languages : en
Pages : 381
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Book Description
Essential for students, science and medical graduates who want to understand the basic science of Positron Emission Tomography (PET), this book describes the physics, chemistry, technology and overview of the clinical uses behind the science of PET and the imaging techniques it uses. In recent years, PET has moved from high-end research imaging tool used by the highly specialized to an essential component of clinical evaluation in the clinic, especially in cancer management. Previously being the realm of scientists, this book explains PET instrumentation, radiochemistry, PET data acquisition and image formation, integration of structural and functional images, radiation dosimetry and protection, and applications in dedicated areas such as drug development, oncology, and gene expression imaging. The technologist, the science, engineering or chemistry graduate seeking further detailed information about PET, or the medical advanced trainee wishing to gain insight into the basic science of PET will find this book invaluable. This book is primarily repackaged content from the Basic Science section of the 'big' Valk book on PET. It contains new, completely revised and unchanged chapters covering the "basic sciences" section of the main book - total 18 chapters: 2 new (chapters 1, 16) 8 completely revised (chapters 4, 5, 8, 13, 14, 15, 17, 18) 3 minor corrections (chapters 2, 6, 11) 5 unchanged (chapters 3, 7, 9, 10, 12)
