91066 - MRI Equipment (RN)

Learning outcomes

The student acquires knowledge about components of an MRI system; learn adoption of safety measures; understands basic and advanced sequences;  acquires competences about study coils, gradients, and image quality. He/she is able to perform quality control on MRI machines.

Course contents

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.

Students with learning disabilities or temporary or permanent disabilities are invited to contact the dedicated office
[https://site.unibo.it/studenti-con-disabilita-e-dsa/it/per-studenti ]
as soon as possible in order to agree on the appropriate compensatory measures.

The request must be submitted in advance (at least 15 days before the exam date) to the lecturer, who will assess the suitability of the measures in relation to the course learning objectives.

Assessment methods

Assessment methods Final knowledge test , through a oral examination about the main topics covered during the lessons. 

Teaching tools

Teaching tools pc with projector, blackboard

Office hours

See the website of Stefano Paganelli