• 1839 Citations
20042019
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Personal profile

Quote

To get the very best images, you need to know exactly how things work

Research profile

Alexander Raaijmakers is an assistant professor with a joint position at the Eindhoven University of Technology and the University Medical Center Utrecht. In Eindhoven he is a member of the research group Medical Image Analysis at the department of Biomedical Engineering where his focus is on (MRI) education. At the University Medical Center Utrecht, he is embedded in the 7 Tesla Research group of the department of radiology. His expertise is in RF engineering for ultrahigh field MRI, ultrahigh field body imaging and RF safety in MRI. One of his most pronounced achievements is the introduction of dipole antennas as coil array elements in ultrahigh field imaging. He is currently the project leader of several research projects with a total of 5 PhD students, 1 postdoc and 2 RF engineers. The main research goal is to develop supportive technology, hardware and scanning sequences that enable clinical adoption of ultrahigh field MRI for all body imaging targets such as the heart, prostate, breasts, liver and kidneys. In addition, the lessons learned in this area are translated to lower field strengths for advanced coil array design at 3T and RF safety of medical implants.

Academic background

Alexander Raaijmakers obtained his MSc in Applied Physics at the University of Groningen in 2004. He then started a PhD research project at the radiotherapy department of the University Medical Center Utrecht. His project involved the investigation of radiotherapy dose distributions in the presence of a magnetic field for (back then hypothetical) MRI-guided radiotherapy. During this time he discovered the electron return effect (ERE) and coined the name. In 2008, he finished his PhD-thesis and switched his research field to the newly installed 7 tesla MRI scanner. For the period of 2008-2010 he obtained a Casimir grant on the development of new RF transmit and receive coils for high-field MRI, for which he was in part stationed at Philips Medical Systems (Best, The Netherlands). During this time he acquired extensive knowledge on EM physics in MRI and RF engineering. Since 2013, Alexander Raaijmakers is an assistant professor at UMC Utrecht within the 7T Research Group of the Department of Radiology. In 2016, he was also appointed assistant professor at Eindhoven University of Technology in the research group Medical Image Analysis.

Fingerprint Dive into the research topics where Alexander Raaijmakers is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Magnetic Fields Medicine & Life Sciences
Prostate Medicine & Life Sciences
Magnetic Resonance Imaging Medicine & Life Sciences
Signal-To-Noise Ratio Medicine & Life Sciences
Radiotherapy Medicine & Life Sciences
Imaging techniques Chemical Compounds
Air Medicine & Life Sciences
Electromagnetic Phenomena Medicine & Life Sciences

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Research Output 2004 2019

  • 1839 Citations
  • 41 Article
  • 1 Conference contribution
  • 1 Conference article
  • 1 Review article

Comparing signal-to-noise ratio for prostate imaging at 7T and 3T

Steensma, B. R., Luttje, M., Voogt, I. J., Klomp, D. W. J., Luijten, P. R., van den Berg, C. A. T. & Raaijmakers, A. J. E., May 2019, In : Journal of Magnetic Resonance Imaging. 49, 5, p. 1446-1455

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Signal-To-Noise Ratio
Prostate
Volunteers
Neoplasms
Protons

Local sar assessment for multitransmit systems: a study on the peak local SAR value as a function of magnetic field strength

Raaijmakers, A. J. E. & Steensma, B. R., 2019, In : eMagRes. 8, 1, p. 1-10 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

Magnetic Fields
Magnetic fields
Transceivers
Signal to noise ratio
Electric fields
1 Citation (Scopus)

The dual-mode dipole: A new array element for 7T body imaging with reduced SAR

Solomakha, G., Leeuwen, C. V., Raaijmakers, A., Simovski, C., Popugaev, A., Abdeddaim, R., Melchakova, I. & Glybovski, S., 1 Feb 2019, In : Magnetic Resonance in Medicine. 81, 2, p. 1459-1469

Research output: Contribution to journalArticleAcademicpeer-review

Prostate
Volunteers
7 Citations (Scopus)

An 8-channel Tx/Rx dipole array combined with 16 Rx loops for high-resolution functional cardiac imaging at 7 T

Steensma, B. R., Voogt, I. J., Leiner, T., Luijten, P. R., Habets, J., Klomp, D. W. J., van den Berg, C. A. T. & Raaijmakers, A. J. E., 1 Feb 2018, In : Magnetic Resonance Materials in Physics, Biology and Medicine. 31, 1, p. 7-18 12 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Signal-To-Noise Ratio
Electromagnetic Phenomena
Healthy Volunteers

Estimating B1+ in the breast at 7 T using a generic template

van Rijssel, M. J., Pluim, J. P. W., Luijten, P. R., Gilhuijs, K. G. A., Raaijmakers, A. W. J. & Klomp, D. W. J., 1 May 2018, In : NMR in Biomedicine. 31, 5, 12 p., e3911

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Breast
Volunteers
Mean square error
Anatomy
Magnetic resonance imaging

Courses

Advanced imaging techniques

1/09/15 → …

Course

Images

1/09/1531/08/19

Course

Project Imaging - BIA

1/09/14 → …

Course

Radiofrequency fields in MRI

1/09/17 → …

Course