Rtg elastografické zobrazování

X-ray Elastographic Imaging

Type of document
diplomová práce
master thesis
Author
Kaňková Barbora
Supervisor
Rose-Petruck Christoph
Opponent
Nikl Martin
Field of study
Přístroje a metody pro biomedicínu
Study program
Biomedicínská a klinická technika
Institutions assigning rank
katedra přírodovědných oborů
Defended
2009-09-15


Rights
A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.html
Vysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.html
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Abstract
This thesis deals with highly sensitive method of tumor detection in order to detect the presence of tumors at their earliest stages of development. Two complex methods of soft tissue imaging are combined: phase contrast radiography and elastography. It is reasonable to combine these two methods because there is no connection between mechanical properties investigated by elastography and visibility of the tissue on phase contrast image, so that this combination brings two independent pieces of information about the investigated tissue. The aim is focused on development of a suitable algorithm for evaluation of phase contrast x-ray elastography images. Presented algorithm is based on digital image correlation and it is designed in MATLAB?, MathWorksTM. It can be used for various elastographic methods. In this work, a quasi-static method where the shear deformation is applied externally by linear stage was tested for algorithm evaluation. For phase contrast imaging, the X-ray tube with high lateral and no chromatic coherence was used.
 
This thesis deals with highly sensitive method of tumor detection in order to detect the presence of tumors at their earliest stages of development. Two complex methods of soft tissue imaging are combined: phase contrast radiography and elastography. It is reasonable to combine these two methods because there is no connection between mechanical properties investigated by elastography and visibility of the tissue on phase contrast image, so that this combination brings two independent pieces of information about the investigated tissue. The aim is focused on development of a suitable algorithm for evaluation of phase contrast x-ray elastography images. Presented algorithm is based on digital image correlation and it is designed in MATLAB?, MathWorksTM. It can be used for various elastographic methods. In this work, a quasi-static method where the shear deformation is applied externally by linear stage was tested for algorithm evaluation. For phase contrast imaging, the X-ray tube with high lateral and no chromatic coherence was used.
 
URI
http://hdl.handle.net/10467/71160
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