Short-term side-effects of brain MR examination at 7 T: a single-centre experience.

Journal article

Cosottini M, Frosini D, Biagi L, Pesaresi I, Costagli M, Tiberi G, Symms M and Tosetti M (2014). Short-term side-effects of brain MR examination at 7 T: a single-centre experience. European Radiology. https://doi.org/10.1007/s00330-014-3177-y
AuthorsCosottini M, Frosini D, Biagi L, Pesaresi I, Costagli M, Tiberi G, Symms M and Tosetti M
Abstract

Objective
To study patient tolerability of brain imaging that employs an ultrahigh field (7 T) MR system

Methods
We examined 180 subjects that underwent brain MR examination at 7 T. A tolerability test consisting of two parts (during patient table motion and during the examination) was administered to all subjects in order to monitor their discomfort. The scores range from 0 to 5 for the first part, and from 0 to 10 for the second part, the total score of each subject therefore ranging from 0 (no side effects reported) to 15 (lowest tolerability)

Results
A total of 51 % of subjects reported at least one side effect but all were mild in intensity and did not require examination interruption. No serious adverse event was reported. The total score (mean ± standard deviation) was 1.1 ± 1.5 out of 15 (mean score 0.4 ± 0.7 out of 5 during patient table motion and 0.7 ± 1.1 out of 10 during MR).

Patient discomfort was not related to gender or health status, but it was reduced with time after system installation with increasing operator experience in performing UHF MR examinations.

Conclusions
Ultrahigh field MRI is well tolerated without excessive discomfort to subjects.

Year2014
JournalEuropean Radiology
PublisherSpringer
ISSN1432-1084
Digital Object Identifier (DOI)https://doi.org/10.1007/s00330-014-3177-y
Web address (URL)http://europepmc.org/abstract/med/24816933
Publication dates
Online10 May 2014
Publication process dates
Accepted03 Apr 2013
Deposited22 Sep 2022
Accepted author manuscript
License
File Access Level
Open
Additional information

This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00330-014-3177

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Tiberi, G., Costagli, M., Biagi, L., Ciantis, A.D., Fontana, N., Stara, R., Symms, M.R., Cosottini, M., Guerrini, R. and Tosetti, M. (2016). SAR prediction in adults and children by combining measured B1+ maps and simulations at 7.0 Tesla. Journal of Magnetic Resonance Imaging. 44 (4), pp. 1048-1055. https://doi.org/10.1002/jmri.25241
Finite element method-based approach for radiofrequency magnetic resonance coil losses estimation
Giovannetti, G., Tiberi, G. and Tosetti, M. (2016). Finite element method-based approach for radiofrequency magnetic resonance coil losses estimation. Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering. 46B (4), pp. 186-190. https://doi.org/10.1002/cmr.b.21348
Skin Effect Estimation in Radiofrequency Coils for Nuclear Magnetic Resonance Applications
Giovannetti, G. and Tiberi, G. (2016). Skin Effect Estimation in Radiofrequency Coils for Nuclear Magnetic Resonance Applications. Applied Magnetic Resonance. 47, pp. 601-612. https://doi.org/10.1007/s00723-016-0780-x
Huygens Principle based UWB Microwave Imaging Method for Skin Cancer Detection
Ghavami, N, Tiberi, G, Ghavami, M, Dudley, S and Lane, ME (2016). Huygens Principle based UWB Microwave Imaging Method for Skin Cancer Detection. 10th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing. Prague, Czech Republic 20 - 22 Jul 2016 Institute of Electrical and Electronics Engineers (IEEE).
Quadrature birdcage coil with distributed capacitors for 7.0 T magnetic resonance data acquisition of small animals
Stara, R., Tiberi, G., Gabrieli, M., Buonincontri, G., Fontana, N., Monorchio, A., Costagli, M., Symms, M.R., Retico, A. and Tosetti, M. (2015). Quadrature birdcage coil with distributed capacitors for 7.0 T magnetic resonance data acquisition of small animals. Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering. https://doi.org/10.1002/cmr.b.21271
Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions
Tiberi, G., Fontana, N., Monorchio, A., Stara, R., Retico, A. and Tosetti, M. (2015). Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions. Journal of Magnetic Resonance. 261, pp. 38-42. https://doi.org/10.1016/j.jmr.2015.09.015
Non-iterative beamforming based on Huygens principle for multistatic ultrawide band radar: Application to breast imaging
Ghavami, N., Smith, P.P., Tiberi, G., Edwards, D. and Craddock, I. (2015). Non-iterative beamforming based on Huygens principle for multistatic ultrawide band radar: Application to breast imaging. IET Microwaves, Antennas and Propagation. 9 (12), pp. 1233-1240. https://doi.org/10.1049/iet-map.2014.0621
Non-invasive assessment of Neuromuscular Disorders by 7 tesla Magnetic Resonance Imaging and Spectroscopy: Dedicated radio-frequency coil development
Retico, A., Stara, R., Fantacci, M.E., Toncelli, A., Galante, A., Florio, T.M., Alecci, M., Cosottini, M., Astrea, G., Battini, R., Tiberi, G., Costagli, M. and Tosetti, M. (2015). Non-invasive assessment of Neuromuscular Disorders by 7 tesla Magnetic Resonance Imaging and Spectroscopy: Dedicated radio-frequency coil development. 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015. Torino, Italy 07 - 09 May 2015 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/memea.2015.7145174
Assessment of Silent T1-weighted head imaging at 7 T
Costagli, M., Symms, M.R., Angeli, L., Kelley, D.A.C., Biagi, L., Farnetani, A., Rua, C., Donatelli, G., Tiberi, G., Tosetti, M. and Cosottini, M. (2015). Assessment of Silent T1-weighted head imaging at 7 T. European Radiology. 26, pp. 1879-1888. https://doi.org/10.1007/s00330-015-3954-2
Design of Interference-Resilient Medium Access for High Throughput WLANs
Reggiani, L., Gola, A., Maggio, G.M. and Tiberi, G. (2015). Design of Interference-Resilient Medium Access for High Throughput WLANs. International Journal of Distributed Sensor Networks. https://doi.org/10.1155/2015/659569
Local SAR in adults and children at 7T MR: Realistic estimation by the using of simulations
Fontana, N., Tiberi, G., Stara, R., Monorchio, A., Retico, A. and Tosetti, M. (2014). Local SAR in adults and children at 7T MR: Realistic estimation by the using of simulations. 2014 International Conference on Electromagnetics in Advanced Applications (ICEAA). 03 - 08 Aug 2014 https://doi.org/10.1109/iceaa.2014.6903858
Tissue Border Enhancement by inversion recovery MRI at 7.0 Tesla.
Costagli M, Kelley DA, Symms MR, Biagi L, Stara R, Maggioni E, Tiberi G, Barba C, Guerrini R, Cosottini M and Tosetti M (2014). Tissue Border Enhancement by inversion recovery MRI at 7.0 Tesla. Neuroradiology. 56, pp. 517-523. https://doi.org/10.1007/s00234-014-1365-8
STEAM-MiTiS: An MR spectroscopy method for the detection of scalar-coupled metabolites and its application to glutamate at 7 T
Toncelli, A., Noeske, R., Cosottini, M., Costagli, M., Domenici, V., Tiberi, G. and Tosetti, M. (2014). STEAM-MiTiS: An MR spectroscopy method for the detection of scalar-coupled metabolites and its application to glutamate at 7 T. Magnetic Resonance in Medicine. 74 (6), pp. 1515-1522. https://doi.org/10.1002/mrm.25556
Huygens principle based imaging of multilayered objects with inclusions
Ghavami, N., Tiberi, G., Edwards, D.J., Safaai-Jazi, A. and Monorchio, A. (2014). Huygens principle based imaging of multilayered objects with inclusions. Progress In Electromagnetics Research B. 58, pp. 139-149. https://doi.org/10.2528/pierb13121002