MRS434 Magnetic Resonance Imaging (8)

This subject introduces and familiarises the students with the imaging modality of magnetic resonance imaging (MRI). It covers the MRI physics and instrumentation, detailed examination of pulse sequences, scan techniques and protocols utilised in clinical practice. It also considers quality assurance, magnetic and RF safety issues and departmental planning.

Availability

Session 1 (30)
On Campus
Port Macquarie Campus
Wagga Wagga Campus
Online
Wagga Wagga Campus

Continuing students should consult the SAL for current offering details: MRS434. Where differences exist between the Handbook and the SAL, the SAL should be taken as containing the correct subject offering details.

Subject Information

Grading System

HD/FL

Duration

One session

School

School of Dentistry and Health Sciences

Learning Outcomes

Upon successful completion of this subject, students should:
  • be able to explain the physical principles of magnetic resonance imaging;
  • be able to explain the basic MRI pulse sequences including 2D, 3D and flow motion;
  • be able to describe magnetic resonance imaging instrumentation components and scanner design;
  • be able to evaluate and compare the capabilities, specifications and descriptions used in characterising magnetic resonance imaging;
  • be able to assess and justify a basic quality assurance program for magnetic resonance imaging;
  • be able to describe and justify the imaging protocols and alternative techniques used in magnetic resonance imaging;
  • be able to compare and contrast imaging protocols including the use of pharmaceuticals and correct technique modifications related to specific pathology;
  • be able to identify normal anatomical structures as seen in magnetic resonance imaging images;
  • be able to critically assess the safety considerations encountered with magnetic resonance imaging.

Syllabus

This subject will cover the following topics:

- The basic physics of magnetic resonance imaging: the atomic nucleus in magnetic field; radiofrequency pulse; magnetisation vector and its manipulation; production of 90o pulse; emission of NMR signal and free induction decay; transverse relaxation; T2* relaxation; longitudinal relaxation; spin density; measurements of T1,T2 and density weighted images.
- MRI instrumentation: magnetism; magnets, gradient magnetic fields; RF coils; superconducting cooling system; capabilities and specifications of magnetic resonance imaging; RF shielding requirements; relevant regulation standards.
- MRI pulse sequences and image generation: spatial encoding; Fourier transformation; image reconstruction; signal processing; data space; pulse sequence diagrams; conventional spin echo sequence; fast spin echo; gradient echo sequences; multiple slices imaging; 3D imaging; echo planar imaging; tissue suppress techniques; flow phenomena; MR angiography;
- Artefacts in MRI: image processing artefacts; chemical shift artefacts; truncation artefacts; patient related artefacts; RF related artefacts; magnetic susceptibility related artefacts; gradient related artefacts; flow related artefacts.
- Scanning parameters and image quality: scan time parameters and quality; signal to noise ratio; MR contrast parameters; tissue volume coverage; number of excitations; spatial resolutions; quality assurance and quality control programs in magnetic resonance imaging;
- Safety in MRI: static magnetic fields; time varying magnetic fields; RF safety considerations; cryogen consideration; department planning relevant to MRI; ethics, legal issues and professionalism in MRI.
- Examination techniques and protocols used in MRI examinations: contrast media and uses in MRI examinations; normal anatomical and common pathological as may be demonstrated by MRI.

Indicative Assessment

The following table summarises the assessment tasks for the online offering of MRS434 in Session 1 2019. Please note this is a guide only. Assessment tasks are regularly updated and can also differ to suit the mode of study (online or on campus).

Item Number
Title
Value %
1
Online multiple choice test
20
2
Critique of mr imaging protocol
35
3
Final exam
45

The information contained in the CSU Handbook was accurate at the date of publication: July 2020. The University reserves the right to vary the information at any time without notice.

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