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Johan Berglund

Assistant professor

Johan Berglund is an MR Physicist and Assistant Professor at Karolinska Institutet, affiliated with the Department of Neuroradiology at Karolinska University Hospital.

About me

MR Physicist and Assistant Professor at Karolinska Institutet, affiliated with the Department of Neuroradiology at Karolinska University Hospital. I earned my Ph.D. in MR Physics at Uppsala University. My research involves developing technology for diagnostic Magnetic Resonance Imaging (MRI) including pulse sequence design and image reconstruction algorithms. I teach MR physics on both student and professional levels for Radiologists, Radiology Nurses, and Medical Physicists.

Research description

The focus of my Ph.D. thesis is separation of the MRI signal originating from fat and water. Fat/water separation is of great significance in diagnostic MRI, mainly because of its superior ability to remove the bright signal from fat, but also since the identification and characterization of fat may of interest in itself. After being recruited to Stefan Skare's research group at Karolinska Institutet, I have continued this research, focusing on developing more efficient pulse sequences for fat/water separation. I have also joined the group's efforts within motion correction. Involuntary patient motion is a major and long-standing problem for MRI. In this field of research, I focus on correcting the MR data acquisition for head motion in real time, approaching the goal to offer a complete motion-robust MR examination of the brain.

Teaching portfolio

I have teaching assignments in the following study programmes:

  • Training program for residents in Radiology, Karolinska University Hospital
  • The Radiology Nurse Programme (Röntgensjuksköterskeprogrammet), Karolinska Institutet
  • The Master's Programme in Medical Physics, Stockholm University in collaboration with Karolinska University Hospital

I also taught at the following courses for professionals:

  • MRI – grunderna och basal klinik, provided by Swedish Society of Radiology
  • MR-fysik för kliniker, provided by Swedish Society of Neuroradiology

I have developed BlochBuster, a teaching tool for creating animated Bloch equation simulations, written in Python. BlochBuster is freely available on GitHub: https://github.com/bretglun/BlochBuster

Education

  • Ph.D. in MR Physics, Uppsala University 2011
  • M.Sc. in Physics Engineering, Uppsala University 2008
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