Alexander J.E. Raaijmakers

2020

Accelerating implant RF safety assessment using a low-rank inverse update method

Stijnman, P. R. S., Tokaya, J. P., van Gemert, J., Luijten, P. R., Pluim, J. P. W., Brink, W. M., Remis, R. F., van den Berg, C. A. T. & Raaijmakers, A. J. E., 1 May 2020, In: Magnetic Resonance in Medicine. 83, 5, p. 1796-1809 14 p.

Research output: Contribution to journal › Article › Academic › peer-review

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5 Citations (Scopus)

67 Downloads (Pure)

A deep learning method for image-based subject-specific local SAR assessment

Meliadò, E. F., Raaijmakers, A. J. E., Sbrizzi, A., Steensma, B. R., Maspero, M., Savenije, M. H. F., Luijten, P. R. & van den Berg, C. A. T., 1 Feb 2020, In: Magnetic Resonance in Medicine. 83, 2, p. 695-711 17 p.

Research output: Contribution to journal › Article › Academic › peer-review

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22 Citations (Scopus)

84 Downloads (Pure)

Fast contour propagation for MR-guided prostate radiotherapy using CNNs

Eppenhof, K. A. J., Maspero, M., Savenije, M. H. F., de Boer, J. C. J., van der Voort van Zyp, J. R. N., Raaymakers, B. W., Raaijmakers, A., Veta, M., Pluim, J. P. W. & van den Berg, C. A. T., 2020, p. 948-949.

Research output: Contribution to conference › Abstract › Academic

Open Access

Fast contour propagation for MR‐guided prostate radiotherapy using convolutional neural networks

Eppenhof, K. A. J., Maspero, M., Savenije, M. H. F., de Boer, J. C. J., van der Voort van Zyp, J. R. N., Raaymakers, B. W., Raaijmakers, A., Veta, M., van den Berg, C. A. T. & Pluim, J. P. W., 1 Mar 2020, In: Medical Physics. 47, 3, p. 1238-1248 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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24 Citations (Scopus)

175 Downloads (Pure)

MRI-based transfer function determination through the transfer matrix by jointly fitting the incident and scattered B1+ field

Tokaya, J. P., Raaijmakers, A. J. E., Luijten, P. R., Sbrizzi, A. & van den Berg, C. A. T., 1 Mar 2020, In: Magnetic Resonance in Medicine. 83, 3, p. 1081-1095 15 p.

Research output: Contribution to journal › Article › Academic › peer-review

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4 Citations (Scopus)

76 Downloads (Pure)

2019

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 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

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14 Citations (Scopus)

223 Downloads (Pure)

Homogeneous B₁⁺ for bilateral breast imaging at 7 T using a five dipole transmit array merged with a high density receive loop array

Krikken, E., Steensma, B. R., Voogt, I. J., Luijten, P. R., Klomp, D. W. J., Raaijmakers, A. J. E. & Wijnen, J. P., 1 Feb 2019, In: NMR in Biomedicine. 32, 2, 8 p., 4039.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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9 Citations (Scopus)

68 Downloads (Pure)

Intersubject specific absorption rate variability analysis through construction of 23 realistic body models for prostate imaging at 7T

Meliadò, E. F., van den Berg, C. A. T., Luijten, P. R. & Raaijmakers, A. J. E., Mar 2019, In: Magnetic Resonance in Medicine. 81, 3, p. 2106-2119 14 p.

Research output: Contribution to journal › Article › Academic › peer-review

24 Citations (Scopus)

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 journal › Article › Academic › peer-review

4 Citations (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 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

15 Citations (Scopus)

Understanding the physical relations governing the noise navigator

Navest, R. J. M., Mandija, S., Andreychenko, A., Raaijmakers, A. J. E., Lagendijk, J. J. W. & van den Berg, C. A. T., Dec 2019, In: Magnetic Resonance in Medicine. 82, 6, p. 2236-2247 12 p.

Research output: Contribution to journal › Article › Academic › peer-review

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3 Citations (Scopus)

64 Downloads (Pure)

2018

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 journal › Article › Academic › peer-review

Open Access

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40 Citations (Scopus)

77 Downloads (Pure)

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 journal › Article › Academic › peer-review

Open Access

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1 Citation (Scopus)

99 Downloads (Pure)

Fast and unconditionally safe in vivo MR head protocol for home-made coil prototype assessment at 7T

Vignaud, A., Mauconduit, F., Gras, V., Boulant, N., Girard, O., Raaijmakers, A., Kober, F., Bihan, D. L. & Abdeddaim, R., 1 Jan 2018, In: Journal of Physics: Conference Series. 1092, 5 p., 012159.

Research output: Contribution to journal › Conference article › peer-review

Open Access

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2 Citations (Scopus)

59 Downloads (Pure)

2017

A 16-channel combined loop-dipole transceiver array for 7 Tesla body MRI

Ertürk, M. A., Raaijmakers, A. J. E., Adriany, G., Uğurbil, K. & Metzger, G. J., 1 Feb 2017, In: Magnetic Resonance in Medicine. 77, 2, p. 884-894 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

124 Citations (Scopus)

Boosting the SNR by adding a receive-only endorectal monopole to an external antenna array for high-resolution, T2 -weighted imaging of early-stage cervical cancer with 7-T MRI

van Kalleveen, I. M. L., Hoogendam, J. P., Raaijmakers, A. J. E., Visser, F., Arteaga de Castro, C. S., Verheijen, R. H. M., Luijten, P. R., Zweemer, R. P., Veldhuis, W. B. & Klomp, D. W. J., Sept 2017, In: NMR in Biomedicine. 30, 9, 8 p., e3750.

Research output: Contribution to journal › Article › Academic › peer-review

1 Citation (Scopus)

Combining a reduced field of excitation with SENSE-based parallel imaging for maximum imaging efficiency

Mooiweer, R., Sbrizzi, A., Raaijmakers, A. J. E., van den Berg, C. A. T., Luijten, P. R. & Hoogduin, H., Jul 2017, In: Magnetic Resonance in Medicine. 78, 1, p. 88-96 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

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10 Citations (Scopus)

120 Downloads (Pure)

High-resolution T2-weighted cervical cancer imaging: a feasibility study on ultra-high-field 7.0-T MRI with an endorectal monopole antenna

Hoogendam, J. P., Kalleveen, I. M. L., Arteaga de Castro, C. S., Raaijmakers, A. J. E., Verheijen, R. H. M., van den Bosch, M. A. A. J., Klomp, D. W. J., Zweemer, R. P. & Veldhuis, W. B., Mar 2017, In: European Radiology. 27, 3, p. 938-945 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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12 Citations (Scopus)

91 Downloads (Pure)

MRI-based transfer function determination for the assessment of implant safety

Tokaya, J. P., Raaijmakers, A. J. E., Luijten, P. R., Bakker, J. F. & van den Berg, C. A. T., Dec 2017, In: Magnetic Resonance in Medicine. 78, 6, p. 2449-2459 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

25 Citations (Scopus)

2 Downloads (Pure)

Thermal noise variance of a receive radiofrequency coil as a respiratory motion sensor

Andreychenko, A., Raaijmakers, A. J. E., Sbrizzi, A., Crijns, S. P. M., Lagendijk, J. J. W., Luijten, P. R. & van den Berg, C. A. T., Jan 2017, In: Magnetic Resonance in Medicine. 77, 1, p. 221-228 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

21 Citations (Scopus)

Validating subject-specific RF and thermal simulations in the calf muscle using MR-based temperature measurements

Simonis, F. F. J., Raaijmakers, A. J. E., Lagendijk, J. J. W. & van den Berg, C. A. T., Apr 2017, In: Magnetic Resonance in Medicine. 77, 4, p. 1691-1700 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

15 Citations (Scopus)

2016

7 T renal MRI: challenges and promises

de Boer, A., Hoogduin, J. M., Blankestijn, P. J., Li, X., Luijten, P. R., Metzger, G. J., Raaijmakers, A. J. E., Umutlu, L., Visser, F. & Leiner, T., Jun 2016, In: Magnetic Resonance Materials in Physics, Biology and Medicine. 29, 3, p. 417-433 17 p.

Research output: Contribution to journal › Review article › peer-review

Open Access

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11 Citations (Scopus)

103 Downloads (Pure)

Dielectric waveguides for ultrahigh field magnetic resonance imaging

Bluemink, J. J., Raaijmakers, A. J. E., Koning, W., Andreychenko, A., Rivera, D. S., Luijten, P. R., Klomp, D. W. J. & van den Berg, C. A. T., Oct 2016, In: Magnetic Resonance in Medicine. 76, 4, p. 1314-1324 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

Dipole antennas for ultrahigh-field body imaging: a comparison with loop coils

Raaijmakers, A. J. E., Luijten, P. R. & van den Berg, C. A. T., Sept 2016, In: NMR in Biomedicine. 29, 9, p. 1122-1130 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

66 Citations (Scopus)

Element decoupling of 7T dipole body arrays by EBG metasurface structures: experimental verification

Hurshkainen, A. A., Derzhavskaya, T. A., Glybovski, S. B., Voogt, I. J., Melchakova, I. V., van den Berg, C. A. T. & Raaijmakers, A. J. E., Aug 2016, In: Journal of Magnetic Resonance. 269, p. 87-96 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

30 Citations (Scopus)

Enhancement of magnetic resonance imaging with metasurfaces

Slobozhanyuk, A. P., Poddubny, A. N., Raaijmakers, A. J. E., van den Berg, C. A. T., Kozachenko, A. V., Dubrovina, I. A., Melchakova, I. V., Kivshar, Y. S. & Belov, P. A., 2 Mar 2016, In: Advanced Materials. 28, 9, p. 1832-1838

Research output: Contribution to journal › Article › Academic › peer-review

143 Citations (Scopus)

Local specific absorption rate in brain tumors at 7 tesla

Restivo, M. C., van den Berg, C. A. T., van Lier, A. L. H. M. W., Polders, D. L., Raaijmakers, A. J. E., Luijten, P. R. & Hoogduin, H., Jan 2016, In: Magnetic Resonance in Medicine. 75, 1, p. 381-389 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

16 Citations (Scopus)

2 Downloads (Pure)

The fractionated dipole antenna: a new antenna for body imaging at 7 Tesla

Raaijmakers, AJ. E., Italiaander, M. G. M., Voogt, I. J., Luijten, P. R., Hoogduin, J. M., Klomp, D. W. J. & van den Berg, C. A. T., Mar 2016, In: Magnetic Resonance in Medicine. 75, 3, p. 1366-1374 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

166 Citations (Scopus)

1 Downloads (Pure)

2015

19F MRSI of capecitabine in the liver at 7 T using broadband transmit-receive antennas and dual-band RF pulses

van Gorp, J. S., Seevinck, P. R., Andreychenko, A., Raaijmakers, A. J. E., Luijten, P. R., Viergever, M. A., Koopman, M., Boer, V. O. & Klomp, D. W. J., Nov 2015, In: NMR in Biomedicine. 28, 11, p. 1433-1442 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

14 Citations (Scopus)

MRI and (31)P magnetic resonance spectroscopy hardware for axillary lymph node investigation at 7T

Rivera, D. S., Wijnen, J. P., van der Kemp, W. J. M., Raaijmakers, A. J. E., Luijten, P. R. & Klomp, D. W. J., May 2015, In: Magnetic Resonance in Medicine. 73, 5, p. 2038-2046 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

Radiofrequency configuration to facilitate bilateral breast (31) P MR spectroscopic imaging and high-resolution MRI at 7 Tesla

van der Velden, T. A., Italiaander, M. G. M., van der Kemp, W. J. M., Raaijmakers, A. J. E., Schmitz, A. M. T., Luijten, P. R., Boer, V. O. & Klomp, D. W. J., Dec 2015, In: Magnetic Resonance in Medicine. 74, 6, p. 1803-1810 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

24 Citations (Scopus)

2014

Intersubject local SAR variation for 7T prostate MR imaging with an eight-channel single-side adapted dipole antenna array

Ipek, O., Raaijmakers, A. J. E., Lagendijk, JJ., Luijten, P. R. & van den Berg, C. A. T., Apr 2014, In: Magnetic Resonance in Medicine. 71, 4, p. 1559-1567 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

38 Citations (Scopus)

1 Downloads (Pure)

Transmit and receive RF fields determination from a single low-tip-angle gradient-echo scan by scaling of SVD data

Sbrizzi, A., Raaijmakers, A. J. E., Hoogduin, H., Lagendijk, J. J. W., Luijten, P. R. & van den Berg, C. A. T., Jul 2014, In: Magnetic Resonance in Medicine. 72, 1, p. 248-259 12 p.

Research output: Contribution to journal › Article › Academic › peer-review

7 Citations (Scopus)

2013

High-resolution MRI of the carotid arteries using a leaky waveguide transmitter and a high-density receive array at 7 T

Koning, W., Bluemink, J. J., Langenhuizen, E. A. J., Raaijmakers, A. J., Andreychenko, A., van den Berg, C. A. T., Luijten, P. R., Zwanenburg, J. J. M. & Klomp, D. W. J., Apr 2013, In: Magnetic Resonance in Medicine. 69, 4, p. 1186-1193 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

27 Citations (Scopus)

Improved RF performance of travelling wave MR with a high permittivity dielectric lining of the bore

Andreychenko, A., Bluemink, J. J., Raaijmakers, A. J. E., Lagendijk, J. J. W., Luijten, P. R. & van den Berg, C. A. T., Sept 2013, In: Magnetic Resonance in Medicine. 70, 3, p. 885-94 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

17 Citations (Scopus)

Specific absorption rate intersubject variability in 7T parallel transmit MRI of the head

de Greef, M., Ipek, O., Raaijmakers, A. J. E., Crezee, J. & van den Berg, C. A. T., May 2013, In: Magnetic Resonance in Medicine. 69, 5, p. 1476-1485 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

63 Citations (Scopus)

2012

Characterization of transceive surface element designs for 7 tesla magnetic resonance imaging of the prostate: radiative antenna and microstrip

Ipek, O., Raaijmakers, A. J. E., Klomp, D. W. J., Lagendijk, J. J. W., Luijten, P. R. & van den Berg, C. A. T., 21 Jan 2012, In: Physics in Medicine and Biology. 57, 2, p. 343-355 13 p.

Research output: Contribution to journal › Article › Academic › peer-review

27 Citations (Scopus)

MR and hyperthermia: exploiting similarities for mutual benefit

van den Berg, C. A. T., Bluemink, J. J., van Lier, A. L. H. M. W., Paulides, M. M., Bakker, J. F., Verhaart, R. F., Lagendijk, J. J. W., Simonis, F. F. J., Petersen, E. & Raaijmakers, A. J., 1 Dec 2012, European Microwave Week 2012: "Space for Microwaves", EuMW 2012, Conference Proceedings - 42nd European Microwave Conference, EuMC 2012. Piscataway: Institute of Electrical and Electronics Engineers, p. 632-635 4 p. 6459104

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

2011

Design of a radiative surface coil array element at 7 T: the single-side adapted dipole antenna

Raaijmakers, A. J. E., Ipek, O., Klomp, D. W. J., Possanzini, C., Harvey, P. R., Lagendijk, J. J. W. & Van Den Berg, C. A. T., Nov 2011, In: Magnetic Resonance in Medicine. 66, 5, p. 1488-1497 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

195 Citations (Scopus)

Fast dose calculation in magnetic fields with GPUMCD

Hissoiny, S., Raaijmakers, A. J. E., Ozell, B., Després, P. & Raaymakers, B. W., 21 Aug 2011, In: Physics in Medicine and Biology. 56, 16, p. 5119-5129 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

88 Citations (Scopus)

1 Downloads (Pure)

Uniform prostate imaging and spectroscopy at 7 T: comparison between a microstrip array and an endorectal coil

van den Bergen, B., Klomp, D. W. J., Raaijmakers, A. J. E., de Castro, C. A., Boer, V. O., Kroeze, H., Luijten, P. R., Lagendijk, J. J. W. & van den Berg, C. A. T., May 2011, In: NMR in Biomedicine. 24, 4, p. 358-365 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

33 Citations (Scopus)

2009

Dosimetry for the MRI accelerator: the impact of a magnetic field on the response of a Farmer NE2571 ionization chamber

Meijsing, I., Raaymakers, B. W., Raaijmakers, A. J. E., Kok, J. G. M., Hogeweg, L., Liu, B. & Lagendijk, J. J. W., 21 May 2009, In: Physics in Medicine and Biology. 54, 10, p. 2993-3002 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

133 Citations (Scopus)

Integrating a 1.5 T MRI scanner with a 6 MV accelerator: proof of concept

Raaymakers, B. W., Lagendijk, J. J. W., Overweg, J. A., Kok, J. G. M., Raaijmakers, A. J. E., Kerkhof, E. M., van der Put, R. W., Meijsing, I., Crijns, S. P. M., Benedosso, F., van Vulpen, M., de Graaff, C. H. W., Allen, J. J. B. & Brown, K. J., 21 Jun 2009, In: Physics in Medicine and Biology. 54, 12, p. N229-N237

Research output: Contribution to journal › Article › Academic › peer-review

478 Citations (Scopus)

2008

Feasibility of MRI guided proton therapy: magnetic field dose effects

Raaymakers, B. W., Raaijmakers, A. J. E. & Lagendijk, J. J. W., 21 Oct 2008, In: Physics in Medicine and Biology. 53, 20, p. 5615-22 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

88 Citations (Scopus)

Magnetic-field-induced dose effects in MR-guided radiotherapy systems: dependence on the magnetic field strength

Raaijmakers, A. J. E., Raaymakers, B. W. & Lagendijk, J. J. W., 21 Feb 2008, In: Physics in Medicine and Biology. 53, 4, p. 909-923 15 p.

Research output: Contribution to journal › Article › Academic › peer-review

208 Citations (Scopus)

MRI/linac integration

Lagendijk, J. J. W., Raaymakers, B. W., Raaijmakers, AJE., Overweg, J. A., Brown, K. J., Kerkhof, E. M., van der Put, R. W., Hårdemark, B., van Vulpen, M. & van der Heide, U. A., Jan 2008, In: Radiotherapy and Oncology. 86, 1, p. 25-29 5 p.

Research output: Contribution to journal › Article › Academic › peer-review

403 Citations (Scopus)

2007

Dose optimization for the MRI-accelerator: IMRT in the presence of a magnetic field

Raaijmakers, A. J. E., Hårdemark, B., Raaymakers, B. W., Raaijmakers, C. P. J. & Lagendijk, J. J. W., 7 Dec 2007, In: Physics in Medicine and Biology. 52, 23, p. 7045-54 10 p.

Research output: Contribution to journal › Article › Academic › peer-review

77 Citations (Scopus)

Experimental verification of magnetic field dose effects for the MRI-accelerator

Raaijmakers, A. J. E., Raaymakers, B. W. & Lagendijk, J. J. W., 21 Jul 2007, In: Physics in Medicine and Biology. 52, 14, p. 4283-91 9 p.

Research output: Contribution to journal › Article › Academic › peer-review

90 Citations (Scopus)

Integrating a MRI scanner with a 6 MV radiotherapy accelerator: impact of the surface orientation on the entrance and exit dose due to the transverse magnetic field

Raaijmakers, A. J. E., Raaymakers, B. W., van der Meer, S. E. & Lagendijk, J. J. W., 21 Feb 2007, In: Physics in Medicine and Biology. 52, 4, p. 929-939 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

130 Citations (Scopus)

2005

Integrating a MRI scanner with a 6 MV radiotherapy accelerator: dose increase at tissue-air interfaces in a lateral magnetic field due to returning electrons

Raaijmakers, A. J. E., Raaymakers, B. W. & Lagendijk, J. J. W., 7 Apr 2005, In: Physics in Medicine and Biology. 50, 7, p. 1363-1376 14 p.

Research output: Contribution to journal › Article › Academic › peer-review

279 Citations (Scopus)

Alexander J.E. Raaijmakers

Research output

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