91066 - MRI Equipment (RN)

Learning outcomes

THE MAGNETIC PROPERTIES OF PROTONS

1. The proton spin

2. The phenomenon of Resonance

INTRINSIC CHARACTERISTICS OF MATERIAL

Signal parameters

1. Proton density

2. T1 or spin-lattice relaxation time

3. T2 or spin-spin relaxation time

4. Chemical Shift phenomenon

5. Flow dynamics

6. Magnetization Transfer MT

7. Magnetic Susceptibility

APPLICATIONS AND EQUIPMENT

Part 1 Equipment

1. Types of Magnets

2. Gradient Coils

3. Drive coils

4. Receiving coils

SITE SECURITY RM

1. Contraindications to MRI examination and related risks

2. The SAR

3. Risks inside the RM site

THE FORMATION OF THE RM IMAGE

1. The spatial coding of the signal

2. The K space

3. k-space filling techniques

Part 2 Applied MRI

SEQUENCES AND IMPULSES IN MRI

-Spin Echo sequence

-Multi Slicing

- Fast (Turbo) Spin Echo

-Gradient Echo Sequence (GE)

-Ultra-fast Gradient-Echo sequences

-Inversion Recovery (IR)Sequence

-Sequences of fat spectral saturation

EXTRINSIC RESONANCE PARAMETERS

1.TR Repeat time

2.TE Time to Echo

3.FA Flip Angle

4.TI Inversion Time

5.NA Number of NSA, NEX

6.MX Matrix

7.FOV(Field Of View)

8.ST Slice Thickness

9.SG Slice Gap

10.PE Phase Encoding

11.BW Bandwidth

ARTIFACTS IN MAGNETIC RESONANCE

1. Movement

2.Magnetic susceptibility

3.Wrap around

4.Cross talk and slice overlap

5.Bounce-point, Gibbs, magic Angle

6. Off resonance, Zipper ,Zibra, Eddy currents

 

Readings/Bibliography

- M. Coriasco, O. Rampado, G.B. Bradac (Eds.) Elementi di risonanza magnetica - Ed Springer
- Ray H. Hashemi, William G. Bradley- MRI: The Basics - Lippincott Williams & Wilkins - third

-Luca Bartalini - Artefatti eArtefatti e soluzioni tecniche nella diagnostica per immagini Rm - Independently Published, 2018

Teaching methods

Direct lessons with slide projection.

Examples and exercises on the blackboard.

Italian language

Assessment methods

Final knowledge test , through a written trial about the main topics covered during the lessons.

Teaching tools

pc with projector, blackboard 

Office hours

See the website of Stefano Paganelli