Magnetic Resonance (MR) Image-guided Percutaneous Laser Ablation of Uterine Fibroids
Author | : National Institute for Clinical Excellence (Great Britain) |
Publisher | : |
Total Pages | : 2 |
Release | : 2003 |
Genre | : |
ISBN | : |
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Author | : National Institute for Clinical Excellence (Great Britain) |
Publisher | : |
Total Pages | : 2 |
Release | : 2003 |
Genre | : |
ISBN | : |
Author | : National Institute for Health and Clinical Excellence (Great Britain) |
Publisher | : |
Total Pages | : 2 |
Release | : 2007 |
Genre | : Uterine fibroids |
ISBN | : 9781846294815 |
Author | : Ferenc A Jolesz |
Publisher | : CRC Press |
Total Pages | : 216 |
Release | : 2019-08-30 |
Genre | : |
ISBN | : 9780367388560 |
MRI-Guided Focused Ultrasound Surgery will be the first publication on this new technology, and will present a variety of current and future clinical applications in tumor ablation treatment. This source helps surgeons and specialists evaluate, analyze, and utilize MRI-guided focused ultrasound surgery - bridging the gap between phase 3 clinical trials and the expansion to the clinical practice - by exploring fundamental principles and future clinical applications using this new therapeutic method.
Author | : Feifei Qu |
Publisher | : |
Total Pages | : |
Release | : 2015 |
Genre | : Physics |
ISBN | : |
Uterine fibroids are the most common benign tumors in women. Uterine fibroids can cause substantial symptoms including heavy menstrual bleeding, pelvic pressure, and discomfort. MR guided high intensity focused ultrasound (MRgHIFU) uses MRI to monitor thermal ablation of uterine fibroids. It is non-invasive and requires a short recovery time. However, MRgHIFU therapy has several challenges: (1) The long pre-imaging time, which reduces the treatment efficiency and can cause significant patient discomfort. (2) Not all the fibroids are treatable by HIFU therapy. Current studies reported the fibroids with higher signal intensity than muscle and myometrium in T2-weighted image cannot be treated by this method. (3) Evaluation of treatment response requires the use of a MRI contrast based method, which is contra-indicated in patients with dysfunctional kidney. This dissertation focused on strategies to address the aforementioned challenges in MRgHIFU therapy of uterine fibroids via numerical simulations and in vivo animal and human studies. The specific contributions from this dissertation are as follows: (1) The scan time of conventional T2 weighted turbo spin echo (TSE) sequence used to obtain pre-treatment images for MRgHIFU therapy was halved by modifying the TSE sequence with variable refocusing flip angles as well as the application of orthogonal 90°-180° radio-frequency pulses to restrict imaging field-of-view. (2) An intra-voxel incoherent motion (IVIM) based model is proposed in lieu of the current approaches to assess tissue microstructure (diffusion and perfusion) to distinguish treatable and non-treatable fibroids. It is found that with T2-correction, f (blood volume ratio in IVIM) is different for different types of fibroids. (3) Three potential non-contrast based methods to estimate the treatment outcome are proposed. They include the diffusion weighted imaging (DWI), T2 map, and f map, and preliminary evidence is presented. (4) A DWI method to monitor tissue microstructure changes during heating via apparent diffusion coefficient (ADC) based surrogates for diffusion and perfusion is also reported. With further advancement, this work will permit efficient MRgHIFU therapy of uterine fibroids, by reducing pre-treatment imaging time, selection of treatable fibroids based on their microstructure, and monitor treatment outcome during and after MRgHIFU therapy without the need for MRI contrast.
Author | : Eric van Sonnenberg |
Publisher | : Springer Science & Business Media |
Total Pages | : 554 |
Release | : 2008-09-08 |
Genre | : Medical |
ISBN | : 0387286748 |
There is an enormous sense of excitement in the communities of cancer research and cancer care as we move into the middle third of the ?rst decade of the 21st century. For the ?rst time,there is a true sense of c- ?dence that the tools provided by the human genome project will enable cancer researchers to crack the code of genomic abnormalities that allow tumor cells to live within the body and provide highly speci?c, virtually non-toxic therapies for the eradication,or at least ?rm control of human cancers. There is also good reason to hope that these same lines of inquiry will yield better tests for screening, early detection, and prev- tion of progression beyond curability. While these developments provide a legitimate basis for much op- mism, many patients will continue to develop cancers and suffer from their debilitating effects, even as research moves ahead. For these in- viduals, it is imperative that the cancer ?eld make the best possible use of the tools available to provide present day cancer patients with the best chances for cure, effective palliation, or, at the very least, relief from symptoms caused by acute intercurrent complications of cancer. A modality that has emerged as a very useful approach to at least some of these goals is tumor ablation by the use of physical or physiochemical approaches.
Author | : Ferenc A. Jolesz |
Publisher | : CRC Press |
Total Pages | : 217 |
Release | : 2007-09-26 |
Genre | : Medical |
ISBN | : 1420019937 |
MRI-Guided Focused Ultrasound Surgery will be the first publication on this new technology, and will present a variety of current and future clinical applications in tumor ablation treatment. This source helps surgeons and specialists evaluate, analyze, and utilize MRI-guided focused ultrasound surgery - bridging the gap between phase 3 clinical tr
Author | : Mostafa Metwally |
Publisher | : Cambridge University Press |
Total Pages | : 207 |
Release | : 2020-12-03 |
Genre | : Medical |
ISBN | : 1108420176 |
A comprehensive review of the management of uterine fibroids, offering active treatment guidance, illustrated by practical, online videos.
Author | : Thomas Kahn |
Publisher | : Springer Science & Business Media |
Total Pages | : 492 |
Release | : 2012-08-27 |
Genre | : Medical |
ISBN | : 3642207065 |
The idea of using the enormous potential of magnetic resonance imaging (MRI) not only for diagnostic but also for interventional purposes may seem obvious, but it took major efforts by engineers, physicists, and clinicians to come up with dedicated interventional techniques and scanners, and improvements are still ongoing. Since the inception of interventional MRI in the mid-1990s, the numbers of settings, techniques, and clinical applications have increased dramatically. This state of the art book covers all aspects of interventional MRI. The more technical contributions offer an overview of the fundamental ideas and concepts and present the available instrumentation. The richly illustrated clinical contributions, ranging from MRI-guided biopsies to completely MRI-controlled therapies in various body regions, provide detailed information on established and emerging applications and identify future trends and challenges.
Author | : Botros R. M. B. Rizk |
Publisher | : Cambridge University Press |
Total Pages | : 405 |
Release | : 2014-10-16 |
Genre | : Medical |
ISBN | : 1316060950 |
Ultrasonography is a cornerstone in the evaluation of gynecologic disease. This authoritative new book looks at the techniques of ultrasonography in both office and hospital settings, offering guidance on the optimal use of equipment and covering the full range of benign and malignant gynecologic disease as well as infertility. Ultrasonography in Gynecology offers extensive coverage of the diagnostic potential of ultrasound in gynecologic disease, from the moment the patient walks into the physician's office. All the different approaches in the ultrasonographic evaluation of disease – including 3D ultrasonography, 3D sonohysterography, Doppler imaging and pelvic floor imaging – are extensively covered, with color images throughout. Written and edited by leaders in the field of ultrasonography who have actively participated in national and international teaching courses, Ultrasonography in Gynecology is a must for all gynecologists dealing with infertility, endometriosis, uterine fibroids, gynecologic cancers, and many more gynecologic conditions.
Author | : Afshin Gangi |
Publisher | : Springer Science & Business Media |
Total Pages | : 419 |
Release | : 2010-06-29 |
Genre | : Medical |
ISBN | : 3540499296 |
This book details imaging in percutaneous musculoskeletal interventions. It describes in exhaustive detail the abilities and uses of imaging in guiding procedures ranging from biopsy and joint injection to management of pain and tumors. In addition, it documents the different indications for vascular interventions in musculoskeletal lesions and focuses on ultrasound-guided interventions.