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Author: Al-Hassan Aly Publisher: ISBN: 9780494675236 Category : Languages : en Pages : 0
Book Description
In order to continue development of an ultrasound-guidance system for spinal fusion surgery, simulation and experimental research was conducted to study the effects of bone on ultrasound imaging. Simulation work examined the effect of bone volume and transducer frequency on image quality and accuracy. Experimental work utilized a 3.2MHz prototype ultrasound probe to create ultrasound images of pedicles. The simulation results, based on an idealized anatomical model, provided higher-quality images than the experimental results. It was determined that high bone volume and high transducer frequency have a detrimental effect on image quality. The experimental results suggest that the high variability in pedicle shape results in variability in ultrasound image quality. Overall, the simulation and experimental results suggest that ultrasound imaging of bone is feasible at relatively low frequencies, while highlighting the need for more experiments to take into account the substantial variability in pedicle shape and bone volume.
Author: Al-Hassan Aly Publisher: ISBN: 9780494675236 Category : Languages : en Pages : 0
Book Description
In order to continue development of an ultrasound-guidance system for spinal fusion surgery, simulation and experimental research was conducted to study the effects of bone on ultrasound imaging. Simulation work examined the effect of bone volume and transducer frequency on image quality and accuracy. Experimental work utilized a 3.2MHz prototype ultrasound probe to create ultrasound images of pedicles. The simulation results, based on an idealized anatomical model, provided higher-quality images than the experimental results. It was determined that high bone volume and high transducer frequency have a detrimental effect on image quality. The experimental results suggest that the high variability in pedicle shape results in variability in ultrasound image quality. Overall, the simulation and experimental results suggest that ultrasound imaging of bone is feasible at relatively low frequencies, while highlighting the need for more experiments to take into account the substantial variability in pedicle shape and bone volume.
Author: Amir Manbachi Publisher: Springer ISBN: 3319298321 Category : Technology & Engineering Languages : en Pages : 104
Book Description
This thesis describes the design and fabrication of ultrasound probes for pedicle screw guidance. The author details the fabrication of a 2MHz radial array for a pedicle screw insertion eliminating the need for manual rotation of the transducer. He includes radial images obtained from successive groupings of array elements in various fluids. He also examines the manner in which it can affect ultrasound propagation.
Author: Muris Mujagic Publisher: ISBN: Category : Languages : en Pages : 164
Book Description
As an alternative to current guidance systems we have investigated the possibility of an ultrasound based device for pedicle screw guidance. Ultrasonic measurements on seven vertebral cancellous bone specimens were performed along the craniocaudal axis using a water immersion system with unfocussed 1 MHz and 3.5 MHz broadband transducers. The center frequency attenuation, normalized broadband ultrasound attenuation (nBUA), and phase speed were measured. Pulse echo methods were used to show A-mode imaging through the cancellous bone samples by demonstrating detection of a reflector placed on the opposite end of the bone. Furthermore, we performed a preliminary evolution of a 3-D simulator (Wave3000) for studying the propagation of ultrasound in cancellous bone. Our in vitro results provide good evidence that A-mode imaging for pedicle screw guidance is possible at frequencies as high as 3.5 MHz and that boundaries can be identified to an accuracy of approximately 1 mm.
Author: Vicki E. Noble Publisher: Cambridge University Press ISBN: 1139495933 Category : Medical Languages : en Pages : 359
Book Description
Ultrasound has revolutionized a physician's ability to make urgent and emergent diagnoses at the bedside, and has changed the management of many acute injuries and conditions. This is a practical, concise introduction to what is rapidly becoming an essential tool for all critical care physicians: bedside emergency ultrasound. The Manual covers the full spectrum of conditions diagnosed using ultrasound and gives practical guidance in how to use ultrasound for common invasive procedures. Major applications are introduced using focused diagnostic questions and reviewing the image-acquisition skills needed to answer them. Images of positive and negative findings are presented, and scanning tips for improving image quality. The second edition has been substantially revised and expanded, with new images, updated literature reviews, new applications and clinical algorithms. New chapters cover additional procedures, musculoskeletal and pediatric applications, and the use of ultrasound in resuscitation. This text is invaluable for emergency physicians at all levels.
Author: Stuart A. Grant Publisher: Oxford University Press ISBN: 0190231807 Category : Medical Languages : en Pages : 281
Book Description
This book provides a detailed, stepwise approach to performing ultrasound guided regional anesthesia, identifying pearls and pitfalls to ensure success. Basic principles are covered, followed by techniques for upper extremity, lower extremity, and chest, trunk and spine nerve blocks. Each nerve block is comprehensively explained, divided up by introduction, anatomy, clinical applications, technique, alternate techniques, complications, and pearls.
Author: Michael R. Anderson Publisher: Cambridge University Press ISBN: 1107093546 Category : Medical Languages : en Pages : 209
Book Description
In light of evolving techniques and strategies for increasingly complex orthopedic procedures, this accessible guide to patient management outlines the considerations involved in selecting the most suitable anesthetic for both common and complex clinical scenarios. Chapters cover a multitude of clinical presentations and procedures, ranging from orthopedic trauma to total joint replacement, outpatient hand procedures and regional anesthetic placement in patients with pre-existing conditions. Each chapter discusses and evaluates multiple approaches, accompanied by a review of the current literature. Abundant case scenarios of patients undergoing orthopedic surgical or regional anesthesia provide a handy framework for specialists and consultants, as well as an invaluable guide for trainees in anesthesia, regional anesthesia and emergency medicine.
Author: Committee on the Mathematics and Physics of Emerging Dynamic Biomedical Imaging Publisher: National Academies Press ISBN: 0309552923 Category : Science Languages : en Pages : 261
Book Description
This cross-disciplinary book documents the key research challenges in the mathematical sciences and physics that could enable the economical development of novel biomedical imaging devices. It is hoped that the infusion of new insights from mathematical scientists and physicists will accelerate progress in imaging. Incorporating input from dozens of biomedical researchers who described what they perceived as key open problems of imaging that are amenable to attack by mathematical scientists and physicists, this book introduces the frontiers of biomedical imaging, especially the imaging of dynamic physiological functions, to the educated nonspecialist. Ten imaging modalities are covered, from the well-established (e.g., CAT scanning, MRI) to the more speculative (e.g., electrical and magnetic source imaging). For each modality, mathematics and physics research challenges are identified and a short list of suggested reading offered. Two additional chapters offer visions of the next generation of surgical and interventional techniques and of image processing. A final chapter provides an overview of mathematical issues that cut across the various modalities.
Author: Peter Marhofer Publisher: OUP Oxford ISBN: 0191015555 Category : Medical Languages : en Pages : 264
Book Description
Ultrasonographic guidance for regional anaesthetic blocks is an innovative technique that allows for the direct visualization of nerves, adjacent structures and the position of the needle, as well as for the precise observation of the spread of local anaesthetic. The advantages of the technique allow for the exact administration of moderate volumes of local anaesthetic, reducing the risk of complications. Written by a physician with 16 years' experience in ultrasound-guided regional anaesthesia, this second edition of the well-received practical handbook provides a concise summary of the basics of ultrasound technology and the most recent techniques in the use of ultrasound to guide peripheral nerve blocks, focusing specifically on ultrasound-guided peripheral nerve block techniques. All chapters have been carefully revised to provide the most recent knowledge in the topic of ultrasound in regional anaesthesia. A strong focus has still been attached on anatomical descriptions and subsequent practical implementations. Paediatric applications are now included in this new edition to aid paediatric anaesthesiologists, as well as the incorporation of neuraxial techniques to complete the entire topic. With illustrated colour images throughout, this book is highly relevant to anaesthesiologists and pain specialists with an interest in regional anaesthesia.
Author: Ole Ackermann Publisher: Springer Nature ISBN: 3030638391 Category : Medical Languages : en Pages : 168
Book Description
Filling a gap in the literature, this is the first book to comprehensively present fracture sonography as a diagnostic tool that can complement and in some cases even replace conventional radiological imaging. Guiding readers step by step through a patient examination, it is an invaluable guide to implementing this technique in clinical practice. It also presents algorithms, tips, tricks and pitfalls shared by experienced authors, making it a useful reference resource for all those practicing in the field. This book is of interest to a wide readership, including orthopedic, pediatric and trauma surgeons, emergency physicians, pediatric radiologists and general practitioners.
Author: Manoj Karmakar Publisher: McGraw Hill Professional ISBN: 0071789359 Category : Medical Languages : en Pages : 297
Book Description
A comprehensive full-color anatomical atlas designed specifically for the anesthesiologist and pain physician A clear understanding of relevant anatomy is essential for physicians who wish to master ultrasound guided nerve blocks. This innovative resource includes high-resolution CT, MRI, cadaver anatomy, anatomical illustrations, and 2D and 3D ultrasound images of the neck, upper and lower extremity, trunk, thorax, thoracic spine, sacral spine, lumbar paravertebral region, and thoracic paravertebral region that are relevant to ultrasound guided regional anesthesia. Although other texts may provide some of this imaging information, this is the first book to systematically and comprehensively gather all the imaging modalities for side-by-side comparison. • Bulleted pearls impart how to obtain optimal ultrasound images at each site • Hundreds of full-color photographs and illustrations throughout
Author: Al-Hassan Aly
Author: Al-Hassan Aly
Author: Amir Manbachi
Author: Muris Mujagic
Author: Vicki E. Noble
Author: Stuart A. Grant
Author: Michael R. Anderson
Author: Committee on the Mathematics and Physics of Emerging Dynamic Biomedical Imaging
Author: Peter Marhofer
Author: Ole Ackermann
Author: Manoj Karmakar