3D Imaging and Image reconstruction at a 7T MRI magnet

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Cím angolul: 
3D Imaging and Image reconstruction at a 7T MRI magnet
Típus: 
MSc diplomamunka téma - orvosi fizika
Félév: 
2018/19/2.
Témavezető: 
Név: 
Dr. Légrády Dávid
Email cím: 
legrady@reak.bme.hu
Intézet/Tanszék/Cégnév: 
NTI
Beosztás: 
egy.docens
Hallgató: 
Név: 
El-Emam Ayman Mahmoud Fahim Ibrahim
Képzés: 
Fizikus MSc - nukleáris technika
Elvárások: 

deep understanding of Fourier transform, MRI imaging, Medical Imaging

Leírás: 

A Bruker Avance 7T superconducting NMR magnet has been utilized for Magnetic Resonance Imaging with a Bruker spectrometer and gradient amplifier, demonstrating the capabilities of such system for 2D imaging. Since these early steps taken in the past, a new measurement system has been set in place consisting of a Chameleon spectrometer and new gradient aplifiiers. Two separate gradient aplifier systems are being tested, one based on a High Fidelity music apmplifier for two channels and one being a specialized 3 channel elecetronic circuit, the latter currently being developed at the Institute of Nuclear Techniques. In the course of this master thesis work the student should familiarize him/herself with the script language of the Chameleon spectrometer, develop measurement sequences for the new MRI imaging setup for 3D imaging. The student should characterize the 3D imaging capabilities of such system regarding resolution, signal to noise ratio, Modulation Transfer Function, contrast etc for both ampifier systems in 2D and with the special circuit design in 3D. The student should further suggest improvement possibilities for the current setup regarding gradient aplifier characteristics and Radio Frequency transmitter-reciever coil design. 

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