Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Alexander J E, Raaijmakers"'
Autor:
Peter R. S. Stijnman, Bart R. Steensma, Cornelis A. T. van den Berg, Alexander J. E. Raaijmakers
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract Patients with medical implants often are deprived of magnetic resonance imaging examination because of safety risks. One specific risk is the enhancement of the radiofrequency fields around the medical implant potentially resulting in signif
Externí odkaz:
https://doaj.org/article/8a57fba2e9f34ccf97b77db398dd0495
Autor:
Masoud Sharifian Mazraeh Mollaei, Carel C. Van Leeuwen, Alexander J. E. Raaijmakers, Constantin R. Simovski
Publikováno v:
IEEE Access, Vol 8, Pp 129754-129762 (2020)
Theory of a high impedance coil (HIC) - a cable loop antenna with a modified shield - is comprehensively discussed for MRI application in both transmitting and receiving regimes. Understanding a weakness of the previously reported HIC in transmitting
Externí odkaz:
https://doaj.org/article/14c3080ff84c4889bef71da84fa327ff
Autor:
Seb D. Harrevelt, Thomas H. M. Roos, Dennis W. J. Klomp, Bart R. Steensma, Alexander J. E. Raaijmakers
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 36:245-255
Introduction Various research sites are pursuing 14 T MRI systems. However, both local SAR and RF transmit field inhomogeneity will increase. The aim of this simulation study is to investigate the trade-offs between peak local SAR and flip angle unif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8386d6c20e905b84759483949e465ef
https://doi.org/10.1007/s10334-023-01067-1
https://doi.org/10.1007/s10334-023-01067-1
Autor:
Mathijs W. I. Kikken, Bart R. Steensma, Cornelis A. T. van den Berg, Alexander J. E. Raaijmakers
Publikováno v:
Magnetic Resonance in Medicine. 89:2347-2360
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::097e2a938a231780a5ee58517725b1b1
https://doi.org/10.1002/mrm.29591
https://doi.org/10.1002/mrm.29591
Autor:
Michael J, van Rijssel, Josien P W, Pluim, Peter R, Luijten, Kenneth G A, Gilhuijs, Alexander J E, Raaijmakers, Dennis W J, Klomp
Publikováno v:
Nmr in Biomedicine
Dynamic contrast‐enhanced MRI is the workhorse of breast MRI, where the diagnosis of lesions is largely based on the enhancement curve shape. However, this curve shape is biased by RF transmit (B 1 +) field inhomogeneities. B 1 + field information
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::119e52f9c45a99de646f10202d296d0a
https://pubmed.ncbi.nlm.nih.gov/29570887
https://pubmed.ncbi.nlm.nih.gov/29570887
Autor:
Jacob P, Hoogendam, Irene M L, Kalleveen, Catalina S Arteaga, de Castro, Alexander J E, Raaijmakers, René H M, Verheijen, Maurice A A J, van den Bosch, Dennis W J, Klomp, Ronald P, Zweemer, Wouter B, Veldhuis
Publikováno v:
European Radiology
Objectives We studied the feasibility of high-resolution T2-weighted cervical cancer imaging on an ultra-high-field 7.0-T magnetic resonance imaging (MRI) system using an endorectal antenna of 4.7-mm thickness. Methods A feasibility study on 20 stage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a95b30fdcbd48e281551ac81e8239ede
https://pubmed.ncbi.nlm.nih.gov/27246722
https://pubmed.ncbi.nlm.nih.gov/27246722
Autor:
Michael J. van Rijssel, Josien P. W. Pluim, Peter R. Luijten, Kenneth G. A. Gilhuijs, Alexander J. E. Raaijmakers, Dennis W. J. Klomp
Publikováno v:
NMR in Biomedicine. 31:e3815
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::460926b3363f84101f186f2888b327f0
https://doi.org/10.1002/nbm.3815
https://doi.org/10.1002/nbm.3815
Autor:
Jetse S, van Gorp, Peter R, Seevinck, Anna, Andreychenko, Alexander J E, Raaijmakers, Peter R, Luijten, Max A, Viergever, Miriam, Koopman, Vincent O, Boer, Dennis W J, Klomp
Publikováno v:
NMR in biomedicine. 28(11)
Capecitabine (Cap) is an often prescribed chemotherapeutic agent, successfully used to cure some patients from cancer or reduce tumor burden for palliative care. However, the efficacy of the drug is limited, it is not known in advance who will respon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1308889d2fc627b847e144348e4982c7
https://pubmed.ncbi.nlm.nih.gov/26373355
https://pubmed.ncbi.nlm.nih.gov/26373355
Autor:
Johanna J, Bluemink, Alexander J E, Raaijmakers, Wouter, Koning, Anna, Andreychenko, Debra S, Rivera, Peter R, Luijten, Dennis W J, Klomp, Cornelis A T, van den Berg
Publikováno v:
Magnetic resonance in medicine. 76(4)
The design of RF coils for MRI transmit becomes increasingly challenging at high frequencies required for MRI at 7T and above. Our goal is to show a proof of principle of a new type of transmit coil for higher field strengths.We demonstrate an altern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::12ebd3a02fafd967911680d491290a02
https://pubmed.ncbi.nlm.nih.gov/26480019
https://pubmed.ncbi.nlm.nih.gov/26480019
Autor:
Matthew C, Restivo, Cornelis A T, van den Berg, Astrid L H M W, van Lier, Daniël L, Polders, Alexander J E, Raaijmakers, Peter R, Luijten, Hans, Hoogduin
Publikováno v:
Magnetic resonance in medicine. 75(1)
MR safety at 7 Tesla relies on accurate numerical simulations of transmit electromagnetic fields to fully assess local specific absorption rate (SAR) safety. Numerical simulations for SAR safety are currently performed using models of healthy patient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::59bcd1832c63c4e668394b6f641405df
https://pubmed.ncbi.nlm.nih.gov/25752920
https://pubmed.ncbi.nlm.nih.gov/25752920