4D Image Verification

Nonfiction, Computers, Programming
Cover of the book 4D Image Verification by Christian Schaller, GRIN Publishing
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Christian Schaller ISBN: 9783638634496
Publisher: GRIN Publishing Publication: May 6, 2007
Imprint: GRIN Publishing Language: English
Author: Christian Schaller
ISBN: 9783638634496
Publisher: GRIN Publishing
Publication: May 6, 2007
Imprint: GRIN Publishing
Language: English

Diploma Thesis from the year 2007 in the subject Computer Science - Applied, grade: 1,0, Friedrich-Alexander University Erlangen-Nuremberg (Lehrstuhl für Mustererkennung), 66 entries in the bibliography, language: English, abstract: Far reaching developments and technical advances took place within the field of radiotherapy in the last years. Radiotherapy within the chest and abdomen area is especially important in the field of radiotherapy. Within this regions, organ and tumor positions are significantly affected by patient respiration. The tumor motion, caused due to respiration is compensated by extending the treated area. This extension covers all possible positions of the tumor and therefore also includes healthy tissue. Several clinical studies provide evidence of a survival advantage for higher dose levels. To spare a maximum of healthy tissue physicians use 'gated radiotherapy'. Common recent approaches for gated radiotherapy are based on the observation of a surrogate. This either can be an implanted fiducial marker or an external signal, which is trying to capture the patients' respiration. Within this thesis principles and methods of 'gated radiotherapy' are described. Additionally an overview of recent patents and products related to radiotherapy are presented and advantages and disadvantages of both common approaches are discussed. This discussion leads to a new developed method, which is introduced. The method joins advantages of both known methods but disregards their disadvantages. The developed algorithm is using image guided methods and methods of medical image processing. A mapping between a 4D-CT planning volume and a most recent acquired fluoroscopic sequence of the same patient is calculated before treatment. Using this mapping and an external breathing signal the physician can define gating intervals and treat the patient in certain breathing phases. The developed algorithm is included in an existing prototype developed by Siemens Corporate Research (SCR) in Princeton, NJ, USA. Using this prototype, the application of the method is shown. Furthermore another prototype to acquire respiration synchronized fluoroscopic sequences is developed. Both applications are introduced within this thesis.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

Diploma Thesis from the year 2007 in the subject Computer Science - Applied, grade: 1,0, Friedrich-Alexander University Erlangen-Nuremberg (Lehrstuhl für Mustererkennung), 66 entries in the bibliography, language: English, abstract: Far reaching developments and technical advances took place within the field of radiotherapy in the last years. Radiotherapy within the chest and abdomen area is especially important in the field of radiotherapy. Within this regions, organ and tumor positions are significantly affected by patient respiration. The tumor motion, caused due to respiration is compensated by extending the treated area. This extension covers all possible positions of the tumor and therefore also includes healthy tissue. Several clinical studies provide evidence of a survival advantage for higher dose levels. To spare a maximum of healthy tissue physicians use 'gated radiotherapy'. Common recent approaches for gated radiotherapy are based on the observation of a surrogate. This either can be an implanted fiducial marker or an external signal, which is trying to capture the patients' respiration. Within this thesis principles and methods of 'gated radiotherapy' are described. Additionally an overview of recent patents and products related to radiotherapy are presented and advantages and disadvantages of both common approaches are discussed. This discussion leads to a new developed method, which is introduced. The method joins advantages of both known methods but disregards their disadvantages. The developed algorithm is using image guided methods and methods of medical image processing. A mapping between a 4D-CT planning volume and a most recent acquired fluoroscopic sequence of the same patient is calculated before treatment. Using this mapping and an external breathing signal the physician can define gating intervals and treat the patient in certain breathing phases. The developed algorithm is included in an existing prototype developed by Siemens Corporate Research (SCR) in Princeton, NJ, USA. Using this prototype, the application of the method is shown. Furthermore another prototype to acquire respiration synchronized fluoroscopic sequences is developed. Both applications are introduced within this thesis.

More books from GRIN Publishing

Cover of the book Hedging with Interest Rate Swaps and Currency Swaps by Christian Schaller
Cover of the book Measuring Volunteering in a Jesuit university in the Philippines by Christian Schaller
Cover of the book Report on the 2008 UK communications campaign of Carling Extra Cold by Christian Schaller
Cover of the book Innovation in Banking by Christian Schaller
Cover of the book The notion of global toleration and its contentious role for Rawls's 'Law of Peoples' by Christian Schaller
Cover of the book National Conflicts: Management and Prevention by Christian Schaller
Cover of the book Strength of the Jabberwock by Christian Schaller
Cover of the book Compounding - the general structure of compounds and their most striking features by Christian Schaller
Cover of the book The Doors - A Legend in American Rock Music by Christian Schaller
Cover of the book Civil society and the European Union: The mutual influence between EU institutions and czech non-Government organisations before and after EU-accession by Christian Schaller
Cover of the book Analysis of Marketing Environment of Virgin Australia by Christian Schaller
Cover of the book The Competitiveness of West African Economies in the Chinese Market by Christian Schaller
Cover of the book Ausgewählte biblische Themen aus religionsgeschichtlicher Sicht by Christian Schaller
Cover of the book The Idea of the 'Fetish' in Ballard's 'Crash' by Christian Schaller
Cover of the book Which was the most effective analysis of the early cold war period, NSC-68 or NSC-162/2 by Christian Schaller
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy