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EXPERIMENT MRI / SAFETY 2008-2009 Geometrical distortions and shifts in the magnet.

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Presentation on theme: "EXPERIMENT MRI / SAFETY 2008-2009 Geometrical distortions and shifts in the magnet."— Presentation transcript:

1 EXPERIMENT MRI / SAFETY 2008-2009 Geometrical distortions and shifts in the magnet

2 Test phantom Without needle With needle (in the center) Phantom A B C D A.Gel B.Air C.Aceton D.Benzene A B C D Needle position 2 ppm 1 H NMR spectrum Aceton (Water @ 4 ppm) 7.3 ppm 1 H NMR spectrum Benzene

3 Two different orientations of the phantom (with needle inserted) Direction magnetic field Direction magnetic field

4 CONTACT prof. Yves De Deene Research group QMRI – Dept. Radiotherapy (P7) Ghent University Hospital De Pintelaan, 185 9000 Gent Tel. 09 332 48 52 E-mail: Yves.DeDeene@UGent.beYves.DeDeene@UGent.be Website research group: http://www.ecnurad.ugent.be/QMRI/http://www.ecnurad.ugent.be/QMRI/

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