Computational Design and Fabrication of Portable MRI Systems

Computational Design and Fabrication of Portable MRI Systems
Author: Patrick Christopher McDaniel
Publisher:
Total Pages: 212
Release: 2020
Genre:
ISBN:

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In this work, I have developed techniques for designing portable MRI scanners and have applied them to three portable systems for brain imaging. I first describe the procedue for designing a portable, low-field MRI scanner - in particular, how the constraints of compactness and portability affect the design of all system components (magnets, coils, sequences, RF pulses, and reconstruction schemes). I then describe the design of the principal hardware components of a portable MRI system: the B0 magnet, the magnet shim array, the gradient coils, and the RF coils. This work makes novel use of numerical and computational tools for both sub-system design and physical construction. I next apply this paradigm to the design of gradient coils and a shim magnet array for portable whole-brain MRI scanner and demonstrate in vivo adult brain images. Finally, I describe two novel MRI scanners designed ab ovo using the approach described herein. The former is the "MR Cap", a single-sided MRI device designed for imaging over a reduced 8 × 8 × 3cm3 region of the adult brain; the latter is the "Helmet MRI", a whole-brain scanner optimized specifically for the head geometry.

Portable Low-Field MRI Scanners

Portable Low-Field MRI Scanners
Author: David J. Ariando
Publisher: Springer
Total Pages: 0
Release: 2024-06-26
Genre: Technology & Engineering
ISBN: 9783031602290

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This book provides readers with an accessible and up-to-date introduction to the field of low-field MRI, which is currently seeing a resurgence in both research and commercial activity. It begins by presenting a historical overview of MRI system design and discussing current developments. It then analyzes the underlying physics of MRI from a semi-classical perspective before describing the major hardware components of low-field scanners (including the magnet, coils, transmitters, receivers, gradient systems, and digital processors) in detail. Several examples of each component are described to solidify the reader’s understanding of the major challenges and trade-offs involved in designing these complex devices. Finally, the issues involved in integrating these components within a working system are highlighted by presenting the architecture, design, and test results of two fully functional low-field MRI scanners that were designed and developed by the authors.

Computer Aided Design and Manufacturing

Computer Aided Design and Manufacturing
Author: Zhuming Bi
Publisher: John Wiley & Sons
Total Pages: 640
Release: 2020-02-05
Genre: Technology & Engineering
ISBN: 1119534232

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Broad coverage of digital product creation, from design to manufacture and process optimization This book addresses the need to provide up-to-date coverage of current CAD/CAM usage and implementation. It covers, in one source, the entire design-to-manufacture process, reflecting the industry trend to further integrate CAD and CAM into a single, unified process. It also updates the computer aided design theory and methods in modern manufacturing systems and examines the most advanced computer-aided tools used in digital manufacturing. Computer Aided Design and Manufacturing consists of three parts. The first part on Computer Aided Design (CAD) offers the chapters on Geometric Modelling; Knowledge Based Engineering; Platforming Technology; Reverse Engineering; and Motion Simulation. The second part on Computer Aided Manufacturing (CAM) covers Group Technology and Cellular Manufacturing; Computer Aided Fixture Design; Computer Aided Manufacturing; Simulation of Manufacturing Processes; and Computer Aided Design of Tools, Dies and Molds (TDM). The final part includes the chapters on Digital Manufacturing; Additive Manufacturing; and Design for Sustainability. The book is also featured for being uniquely structured to classify and align engineering disciplines and computer aided technologies from the perspective of the design needs in whole product life cycles, utilizing a comprehensive Solidworks package (add-ins, toolbox, and library) to showcase the most critical functionalities of modern computer aided tools, and presenting real-world design projects and case studies so that readers can gain CAD and CAM problem-solving skills upon the CAD/CAM theory. Computer Aided Design and Manufacturing is an ideal textbook for undergraduate and graduate students in mechanical engineering, manufacturing engineering, and industrial engineering. It can also be used as a technical reference for researchers and engineers in mechanical and manufacturing engineering or computer-aided technologies.

Electromagnetic Technologies for Medical Diagnostics

Electromagnetic Technologies for Medical Diagnostics
Author: Lorenzo Crocco
Publisher: MDPI
Total Pages: 242
Release: 2019-04-02
Genre: Technology & Engineering
ISBN: 3038976768

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Electromagnetic (EM) radio-wave technologies for medical imaging represent an emerging alternative diagnostic modality with some unique features, which is attracting the attention of many researchers worldwide. Diagnostic devices based on EM technology have no side-effects, as they exploit non-ionizing radiation, and their intrinsic low cost makes them sustainable for healthcare systems. This Special Issue provides a comprehensive account of this very active research area by gathering contributions that cover a variety of topics ranging from fundamental research questions to experimental validation and clinical translation.

Proceedings of the 2019 DigitalFUTURES

Proceedings of the 2019 DigitalFUTURES
Author: Philip F. Yuan
Publisher: Springer
Total Pages: 374
Release: 2019-07-04
Genre: Technology & Engineering
ISBN: 9811381534

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The “2019 DigitalFUTURES — The 1st International Conference on Computational Design and Robotic Fabrication (CDRF 2019)” provides an international platform for advanced scientific research papers on the digital technology of architectural design and construction. The themes of the papers include, but are not limited to, architectural theories, tools, methods and procedures in material intelligence, data intelligence; computational intelligence, and robotic intelligence.

Personal Fabrication

Personal Fabrication
Author: Patrick Baudisch
Publisher:
Total Pages: 140
Release: 2017-05-08
Genre: Computers
ISBN: 9781680832587

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While fabrication technologies have been in use in industry for several decades, expiring patents have recently allowed the technology to spill over to technology-enthusiastic "makers." Personal Fabrication looks at the massive, disruptive changes that are likely to be seen in interactive computing, as well as to computing as a whole. It discusses six main challenges that need to be addressed for this change to take place, and explains researchers in HCI will play a key role in tackling these challenges.

Design and Implementation of Real-Time Multi-Sensor Vision Systems

Design and Implementation of Real-Time Multi-Sensor Vision Systems
Author: Vladan Popovic
Publisher: Springer
Total Pages: 263
Release: 2017-07-03
Genre: Technology & Engineering
ISBN: 331959057X

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This book discusses the design of multi-camera systems and their application to fields such as the virtual reality, gaming, film industry, medicine, automotive industry, drones, etc. The authors cover the basics of image formation, algorithms for stitching a panoramic image from multiple cameras, and multiple real-time hardware system architectures, in order to have panoramic videos. Several specific applications of multi-camera systems are presented, such as depth estimation, high dynamic range imaging, and medical imaging.

Spinoff 2007

Spinoff 2007
Author: Bernan
Publisher: Office of Aerospace Technology
Total Pages: 176
Release: 2008-08
Genre: Science
ISBN:

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Spinoff is NASA's annual premiere publication featuring successfully commercialized NASA technology. For more than 40 years, the NASA Commercial Technology Program has facilitated the transfer of NASA technology to the private sector, benefitting global competition and the economy. The resulting commercialization has contributed to the development of commercial products and services in the fields of health and medicine, industry, consumer goods, transportation, public health, computer technology, and environmental resources. Since 1976, Spinoff has featured between 40 and 50 of these commercial products annually.