Magnetic Resonance and Ultrasound Imaging

How to start

• 2. Activate your user account and MFA

  As a new student, you need to activate your user account (your Umu-id) approximately two weeks prior to the start of the semester.

  With your user account you can:

  • register for courses
  • access the internet in computer labs and the university's wireless network
  • submit assignments and verify your study results
  • access your student e-mail

  If you are a new student, you will automatically receive a user account when you are admitted, but you will need to activate it for it to function properly. You will not be able to activate it until approximately two weeks prior to the start of the semester.

  Install MFA for a more secure login
  To increase security and reduce the risk of unauthorised access to your information or account, students must enable multi-factor authentication (MFA) to log in to various systems, such as Canvas and the Student Web.

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  Exchange student or tuition fee paying student

  If you are an exchange student or tuition fee paying student, you will receive an email with instructions on how to activate your account.

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  If you are having problems activating your account or logging in, please contact our Servicedesk. You will find answers to common questions, and can submit enquiries.

• 3. Course registration

  You need to be registered for the course in the study documentation system LADOK to be able to follow the course and to get your results recorded during the course.
  Online registration is open between Tuesday 22th August 2023 and Tuesday 5th September 2023.
  To be able to sign in at the student website and register online, you need to have activated your Umu-id account.
  I want to activate my Umu-id
  
  I have an activated Umu-id and forgot my password

• 4. Course start

  29/08/2023

  Time: 13:15

  Location: Marmorsalen

  Schedule

About the course

• Programme/course information

  The roll call at the first lecture is mandatory and it is important to notify the course coordinator if you can’t participate.

  Course content, parts and examination
  The course starts with nuclear magnetic resonance physics, including how to manipulate and detect signal from the nuclear spins and how that can be utilized to create an imaging system – magnetic resonance imaging (MRI).
  After that we continue by studying the technical aspects of an MRI scanner and its main components such as the main magnet, the gradients and the RF-system. Deviations from the ideal functionality of the scanner components and consequences of these are studied to give an understanding of common artifacts and to give tools to reduce these.
  The course also include image reconstruction and how the design of pulse sequences affect the image contrast. The most important types of MRI sequences such as gradient echo and spin echo are studied in detail, while more specialized sequences such as those used for diffusion weighted imaging, spectroscopy and flow measurements are treated more superficially. Techniques used for speeding up MRI are also studied. An introduction to ultrasound imaging is included in the course. Here we study ultrasound physics and how the imaging system is constructed. Generation of ultrasound, pulse-echo methods and Doppler techniques are also included.
  
  The course contains two parts where the theory (6hp) is examined at a written exam and a laboratory part (1.5hp) that is examined via written laboratory reports.
  
  After the course, the students are expected to:
  
  

  • In detail explain the physics on which MRI is based.
  • In detail describe the key components of an MRI scanner, their function
  • limitations and impact on image quality.
  • In detail explain the structure of MR raw data and how images are created from these data.
  • Describe different types of MRI sequences, how they are designed, their application areas, strengths and weaknesses, as well as importance for image contrast and signal-to-noise ratio.
  • Know the most common artifacts and underlying causes of these.
  • Know different techniques to speed up MR imaging, the principles for these, and critically examine the advantages and disadvantages of different technologies.
  • Explain the physics underlying ultrasound imaging and how it is used to create images.
  • Know the most common artifacts in ultrasound diagnostics, their underlying causes and how they can be minimized
  • Independently use the Bloch equations to quantitatively describe how spin magnetization behaves in an MRI scanner.
  • Identify and reduce artifacts.
  • Independently calculate how a MRI sequence should be designed for a desired contrast, resolution, image size and signal-to-noise ratio.
  • Show basic skills to use a clinical MRI scanner.
  • Assess and evaluate risks with MRI.
  • Evaluate the appropriate MR sequence selection based on requirements on for instance contrast.
  • Make relevant assessments in the choice of ultrasound probes and settings for a specified penetration depth, resolution and contrast.

• More information 1

  All communication with the students during the course is via Canvas.

  When you register for the course (see above), you will have access to the course information on Canvas.

  It's important that you access this information, if you don't use your university mail account, it's important that you arrange for forwarding to another email address.

  The course will be given in English.

  The course you are going to take is provided by the Department of Radiation Sciences 

  Course Coordinator
  Anders Garpebring (anders.garpebring@umu.se).
  Contact the course coordinator with questions about the course.

• More information 2

  Course literature

  D. W. McRobbie, E. A. Moore, M. J. Graves and M. R. Prince MRI From Picture to Proton 3nd Ed. Cambridge University Press, ISBN-13 978-0-521-86527-2

  Robert W. Brown, Y. -C Norman Cheng, E. Mark Haacke "Magnetic Resonance Imaging: Physical Principles and Sequence Design" 2nd Ed. Wiley-Blackwell, ISBN-9780471720850. (Available as E-book on the University Library)

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