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Visualization of through plane bloodflow measurements obtained fromphase contrast MRI
Örebro University, School of Science and Technology.
2009 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This project was ordered by Per Thunberg, Department of Biomedical Engineering in Örebro University Hospital in the Spring 2009.

This project’s aim is to combine in one image-layer two sources of, one source is anatomy images that represents body-parts and the other source is velocity images that represent blood flow though the body. This project’s purpose if for medical use. Further, taking into consideration the combination of Magnetic Resonance Images and the high rate of computation that the computers have nowadays it is possible to obtain appropriate result in real-time that can be useful for doctors.

The purpose of this project was to develop an application in Matlab® for displaying combined MRI images. The images are taken from a Magnetic Resonance machine during phase contrast. The image acquisition itself is out of scope of the project work. However, the images/videos are stored in the DICOM medical format, and these images are the ones that need to be combined and displayed.

When both images are combined, some data of every image has to be displayed to the user (doctor) showing only the important information the user wants. Some image techniques are used to achieve this, in particular pseudocoloring and the Volume Rendering Technique. Once the two types of images can be combined into a single image then the next step is to achieve this for frames, which are multiple images over time which will loop like a movie-player does. And there are some other improvements in order to make it easier for the users (doctors) to retrieve useful information.

Some improvements to visualization the information that doctors can get in every frame were added, like how to set an area of interest for only coloring the specified area they want to check and not coloring the area not selected, or how to change the color map to another one if they experience some problems with the actual colors they have. Further, functionalities have been added which allows the user to pause, select, go forward or backward the instant of time they want by clicking on a slide-bar that determines the actual reproduction moment.

Place, publisher, year, edition, pages
2009. , p. 39
Keyword [en]
anatomy, image, anatomy image, magnetic resonance images, mri, Matlab, dicom, medical format, particular pseudocoloring, volume rendering technique
National Category
Engineering and Technology Computer and Information Sciences Computer Sciences Software Engineering
Identifiers
URN: urn:nbn:se:oru:diva-10308ISRN: ORU-NAT/DAT-GK-2010/0004--SEOAI: oai:DiVA.org:oru-10308DiVA: diva2:307627
Subject / course
Computer Engineering
Presentation
2009-06-01, T213, Örebro universitet, Fakultetsgatan 1, Örebro, 08:15 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2010-04-06 Created: 2010-04-01 Last updated: 2018-02-05Bibliographically approved

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