Eintrag weiter verarbeiten
Accelerating implant RF safety assessment using a low‐rank inverse update method
Gespeichert in:
| Zeitschriftentitel: | Magnetic Resonance in Medicine |
|---|---|
| Personen und Körperschaften: | , , , , , , , , |
| In: | Magnetic Resonance in Medicine, 83, 2020, 5, S. 1796-1809 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. |
|---|---|
| author |
Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. |
| spellingShingle |
Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. Magnetic Resonance in Medicine Accelerating implant RF safety assessment using a low‐rank inverse update method Radiology, Nuclear Medicine and imaging |
| author_sort |
stijnman, peter r. s. |
| spelling |
Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. 0740-3194 1522-2594 Wiley Radiology, Nuclear Medicine and imaging http://dx.doi.org/10.1002/mrm.28023 <jats:sec><jats:title>Purpose</jats:title><jats:p>Patients who have medical metallic implants, e.g. orthopaedic implants and pacemakers, often cannot undergo an MRI exam. One of the largest risks is tissue heating due to the radio frequency (RF) fields. The RF safety assessment of implants is computationally demanding. This is due to the large dimensions of the transmit coil compared to the very detailed geometry of an implant.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>In this work, we explore a faster computational method for the RF safety assessment of implants that exploits the small geometry. The method requires the RF field without an implant as a basis and calculates the perturbation that the implant induces. The inputs for this method are the incident fields and a library matrix that contains the RF field response of every edge an implant can occupy. Through a low‐rank inverse update, using the Sherman–Woodbury–Morrison matrix identity, the EM response of arbitrary implants can be computed within seconds. We compare the solution from full‐wave simulations with the results from the presented method, for two implant geometries.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>From the comparison, we found that the resulting electric and magnetic fields are numerically equivalent (maximum error of 1.35%). However, the computation was between 171 to 2478 times faster than the corresponding GPU accelerated full‐wave simulation.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The presented method enables for rapid and efficient evaluation of the RF fields near implants and might enable situation‐specific scanning conditions.</jats:p></jats:sec> Accelerating implant RF safety assessment using a low‐rank inverse update method Magnetic Resonance in Medicine |
| doi_str_mv |
10.1002/mrm.28023 |
| facet_avail |
Online |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9tcm0uMjgwMjM |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9tcm0uMjgwMjM |
| institution |
DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 DE-Bn3 DE-Brt1 DE-D161 |
| imprint |
Wiley, 2020 |
| imprint_str_mv |
Wiley, 2020 |
| issn |
0740-3194 1522-2594 |
| issn_str_mv |
0740-3194 1522-2594 |
| language |
English |
| mega_collection |
Wiley (CrossRef) |
| match_str |
stijnman2020acceleratingimplantrfsafetyassessmentusingalowrankinverseupdatemethod |
| publishDateSort |
2020 |
| publisher |
Wiley |
| recordtype |
ai |
| record_format |
ai |
| series |
Magnetic Resonance in Medicine |
| source_id |
49 |
| title |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_unstemmed |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_full |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_fullStr |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_full_unstemmed |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_short |
Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_sort |
accelerating implant rf safety assessment using a low‐rank inverse update method |
| topic |
Radiology, Nuclear Medicine and imaging |
| url |
http://dx.doi.org/10.1002/mrm.28023 |
| publishDate |
2020 |
| physical |
1796-1809 |
| description |
<jats:sec><jats:title>Purpose</jats:title><jats:p>Patients who have medical metallic implants, e.g. orthopaedic implants and pacemakers, often cannot undergo an MRI exam. One of the largest risks is tissue heating due to the radio frequency (RF) fields. The RF safety assessment of implants is computationally demanding. This is due to the large dimensions of the transmit coil compared to the very detailed geometry of an implant.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>In this work, we explore a faster computational method for the RF safety assessment of implants that exploits the small geometry. The method requires the RF field without an implant as a basis and calculates the perturbation that the implant induces. The inputs for this method are the incident fields and a library matrix that contains the RF field response of every edge an implant can occupy. Through a low‐rank inverse update, using the Sherman–Woodbury–Morrison matrix identity, the EM response of arbitrary implants can be computed within seconds. We compare the solution from full‐wave simulations with the results from the presented method, for two implant geometries.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>From the comparison, we found that the resulting electric and magnetic fields are numerically equivalent (maximum error of 1.35%). However, the computation was between 171 to 2478 times faster than the corresponding GPU accelerated full‐wave simulation.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The presented method enables for rapid and efficient evaluation of the RF fields near implants and might enable situation‐specific scanning conditions.</jats:p></jats:sec> |
| container_issue |
5 |
| container_start_page |
1796 |
| container_title |
Magnetic Resonance in Medicine |
| container_volume |
83 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792333591592566784 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T14:15:01.07Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Accelerating+implant+RF+safety+assessment+using+a+low%E2%80%90rank+inverse+update+method&rft.date=2020-05-01&genre=article&issn=1522-2594&volume=83&issue=5&spage=1796&epage=1809&pages=1796-1809&jtitle=Magnetic+Resonance+in+Medicine&atitle=Accelerating+implant+RF+safety+assessment+using+a+low%E2%80%90rank+inverse+update+method&aulast=Raaijmakers&aufirst=Alexander+J.+E.&rft_id=info%3Adoi%2F10.1002%2Fmrm.28023&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792333591592566784 |
| author | Stijnman, Peter R. S., Tokaya, Janot P., van Gemert, Jeroen, Luijten, Peter R., Pluim, Josien P. W., Brink, Wyger M., Remis, Rob F., van den Berg, Cornelis A. T., Raaijmakers, Alexander J. E. |
| author_facet | Stijnman, Peter R. S., Tokaya, Janot P., van Gemert, Jeroen, Luijten, Peter R., Pluim, Josien P. W., Brink, Wyger M., Remis, Rob F., van den Berg, Cornelis A. T., Raaijmakers, Alexander J. E., Stijnman, Peter R. S., Tokaya, Janot P., van Gemert, Jeroen, Luijten, Peter R., Pluim, Josien P. W., Brink, Wyger M., Remis, Rob F., van den Berg, Cornelis A. T., Raaijmakers, Alexander J. E. |
| author_sort | stijnman, peter r. s. |
| container_issue | 5 |
| container_start_page | 1796 |
| container_title | Magnetic Resonance in Medicine |
| container_volume | 83 |
| description | <jats:sec><jats:title>Purpose</jats:title><jats:p>Patients who have medical metallic implants, e.g. orthopaedic implants and pacemakers, often cannot undergo an MRI exam. One of the largest risks is tissue heating due to the radio frequency (RF) fields. The RF safety assessment of implants is computationally demanding. This is due to the large dimensions of the transmit coil compared to the very detailed geometry of an implant.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>In this work, we explore a faster computational method for the RF safety assessment of implants that exploits the small geometry. The method requires the RF field without an implant as a basis and calculates the perturbation that the implant induces. The inputs for this method are the incident fields and a library matrix that contains the RF field response of every edge an implant can occupy. Through a low‐rank inverse update, using the Sherman–Woodbury–Morrison matrix identity, the EM response of arbitrary implants can be computed within seconds. We compare the solution from full‐wave simulations with the results from the presented method, for two implant geometries.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>From the comparison, we found that the resulting electric and magnetic fields are numerically equivalent (maximum error of 1.35%). However, the computation was between 171 to 2478 times faster than the corresponding GPU accelerated full‐wave simulation.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The presented method enables for rapid and efficient evaluation of the RF fields near implants and might enable situation‐specific scanning conditions.</jats:p></jats:sec> |
| doi_str_mv | 10.1002/mrm.28023 |
| facet_avail | Online |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9tcm0uMjgwMjM |
| imprint | Wiley, 2020 |
| imprint_str_mv | Wiley, 2020 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161 |
| issn | 0740-3194, 1522-2594 |
| issn_str_mv | 0740-3194, 1522-2594 |
| language | English |
| last_indexed | 2024-03-01T14:15:01.07Z |
| match_str | stijnman2020acceleratingimplantrfsafetyassessmentusingalowrankinverseupdatemethod |
| mega_collection | Wiley (CrossRef) |
| physical | 1796-1809 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher | Wiley |
| record_format | ai |
| recordtype | ai |
| series | Magnetic Resonance in Medicine |
| source_id | 49 |
| spelling | Stijnman, Peter R. S. Tokaya, Janot P. van Gemert, Jeroen Luijten, Peter R. Pluim, Josien P. W. Brink, Wyger M. Remis, Rob F. van den Berg, Cornelis A. T. Raaijmakers, Alexander J. E. 0740-3194 1522-2594 Wiley Radiology, Nuclear Medicine and imaging http://dx.doi.org/10.1002/mrm.28023 <jats:sec><jats:title>Purpose</jats:title><jats:p>Patients who have medical metallic implants, e.g. orthopaedic implants and pacemakers, often cannot undergo an MRI exam. One of the largest risks is tissue heating due to the radio frequency (RF) fields. The RF safety assessment of implants is computationally demanding. This is due to the large dimensions of the transmit coil compared to the very detailed geometry of an implant.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>In this work, we explore a faster computational method for the RF safety assessment of implants that exploits the small geometry. The method requires the RF field without an implant as a basis and calculates the perturbation that the implant induces. The inputs for this method are the incident fields and a library matrix that contains the RF field response of every edge an implant can occupy. Through a low‐rank inverse update, using the Sherman–Woodbury–Morrison matrix identity, the EM response of arbitrary implants can be computed within seconds. We compare the solution from full‐wave simulations with the results from the presented method, for two implant geometries.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>From the comparison, we found that the resulting electric and magnetic fields are numerically equivalent (maximum error of 1.35%). However, the computation was between 171 to 2478 times faster than the corresponding GPU accelerated full‐wave simulation.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The presented method enables for rapid and efficient evaluation of the RF fields near implants and might enable situation‐specific scanning conditions.</jats:p></jats:sec> Accelerating implant RF safety assessment using a low‐rank inverse update method Magnetic Resonance in Medicine |
| spellingShingle | Stijnman, Peter R. S., Tokaya, Janot P., van Gemert, Jeroen, Luijten, Peter R., Pluim, Josien P. W., Brink, Wyger M., Remis, Rob F., van den Berg, Cornelis A. T., Raaijmakers, Alexander J. E., Magnetic Resonance in Medicine, Accelerating implant RF safety assessment using a low‐rank inverse update method, Radiology, Nuclear Medicine and imaging |
| title | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_full | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_fullStr | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_full_unstemmed | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_short | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| title_sort | accelerating implant rf safety assessment using a low‐rank inverse update method |
| title_unstemmed | Accelerating implant RF safety assessment using a low‐rank inverse update method |
| topic | Radiology, Nuclear Medicine and imaging |
| url | http://dx.doi.org/10.1002/mrm.28023 |