Assessment of metallic patient support devices and other items at 7-Tesla: Findings applied to 46 additional devices

Bozena Culo, Samuel Valencerina, Meng Law, Frank G. Shellock

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Objective: Recently, the first 7-Tesla MR system was approved for clinical use in Europe and the United States. Unfortunately, few metallic objects have undergone testing in association with this high-field-strength scanner, including essential equipment such as patient support devices and other items. Therefore, the objective of this investigation was to assess metallic patient support devices and other items for translational attraction at 7-Tesla. Methods: Thirteen different metallic items (e.g., gurney, Mayo stand, step stool, utility table, wheelchair, etc.) underwent testing for translational attraction using a previously described methodology in association with a clinical 7-T MR system. The findings were categorized as pass (no translational attraction) or fail (the item was attracted by the scanner). Results: Every metallic item tested exhibited a lack of magnetism while in a worst-case use position and, thus, passed the test for translational attraction in associated with the 7-Tesla MR system. Conclusions: The different thirteen different metallic patient support devices and other items can be designated as MR Conditional at 7-T or less. Furthermore, because each item represented a worst-case with respect to its mass and the type of metallic material used for its fabrication, the results can be applied to 46 additional smaller items made from the same material or material with a lower magnetic susceptibility. This expanded list of essential patient support devices and other items will facilitate the clinical use of a comparable 7-Tesla scanner, or another UHF scanner with similar fringe field characteristics.

Original languageEnglish
Pages (from-to)250-253
Number of pages4
JournalMagnetic Resonance Imaging
Volume57
DOIs
Publication statusPublished - 1 Apr 2019
Externally publishedYes

Keywords

  • 7-Tesla
  • Magnetic resonance imaging (MRI)
  • Medical equipment
  • MRI safety
  • Ultra-high-field (UHF)

Cite this

@article{be2d2810022740ed8485d1063e762cab,
title = "Assessment of metallic patient support devices and other items at 7-Tesla: Findings applied to 46 additional devices",
abstract = "Objective: Recently, the first 7-Tesla MR system was approved for clinical use in Europe and the United States. Unfortunately, few metallic objects have undergone testing in association with this high-field-strength scanner, including essential equipment such as patient support devices and other items. Therefore, the objective of this investigation was to assess metallic patient support devices and other items for translational attraction at 7-Tesla. Methods: Thirteen different metallic items (e.g., gurney, Mayo stand, step stool, utility table, wheelchair, etc.) underwent testing for translational attraction using a previously described methodology in association with a clinical 7-T MR system. The findings were categorized as pass (no translational attraction) or fail (the item was attracted by the scanner). Results: Every metallic item tested exhibited a lack of magnetism while in a worst-case use position and, thus, passed the test for translational attraction in associated with the 7-Tesla MR system. Conclusions: The different thirteen different metallic patient support devices and other items can be designated as MR Conditional at 7-T or less. Furthermore, because each item represented a worst-case with respect to its mass and the type of metallic material used for its fabrication, the results can be applied to 46 additional smaller items made from the same material or material with a lower magnetic susceptibility. This expanded list of essential patient support devices and other items will facilitate the clinical use of a comparable 7-Tesla scanner, or another UHF scanner with similar fringe field characteristics.",
keywords = "7-Tesla, Magnetic resonance imaging (MRI), Medical equipment, MRI safety, Ultra-high-field (UHF)",
author = "Bozena Culo and Samuel Valencerina and Meng Law and Shellock, {Frank G.}",
year = "2019",
month = "4",
day = "1",
doi = "10.1016/j.mri.2018.11.002",
language = "English",
volume = "57",
pages = "250--253",
journal = "Magnetic Resonance Imaging",
issn = "0730-725X",
publisher = "Elsevier",

}

Assessment of metallic patient support devices and other items at 7-Tesla : Findings applied to 46 additional devices. / Culo, Bozena; Valencerina, Samuel; Law, Meng; Shellock, Frank G.

In: Magnetic Resonance Imaging, Vol. 57, 01.04.2019, p. 250-253.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Assessment of metallic patient support devices and other items at 7-Tesla

T2 - Findings applied to 46 additional devices

AU - Culo, Bozena

AU - Valencerina, Samuel

AU - Law, Meng

AU - Shellock, Frank G.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Objective: Recently, the first 7-Tesla MR system was approved for clinical use in Europe and the United States. Unfortunately, few metallic objects have undergone testing in association with this high-field-strength scanner, including essential equipment such as patient support devices and other items. Therefore, the objective of this investigation was to assess metallic patient support devices and other items for translational attraction at 7-Tesla. Methods: Thirteen different metallic items (e.g., gurney, Mayo stand, step stool, utility table, wheelchair, etc.) underwent testing for translational attraction using a previously described methodology in association with a clinical 7-T MR system. The findings were categorized as pass (no translational attraction) or fail (the item was attracted by the scanner). Results: Every metallic item tested exhibited a lack of magnetism while in a worst-case use position and, thus, passed the test for translational attraction in associated with the 7-Tesla MR system. Conclusions: The different thirteen different metallic patient support devices and other items can be designated as MR Conditional at 7-T or less. Furthermore, because each item represented a worst-case with respect to its mass and the type of metallic material used for its fabrication, the results can be applied to 46 additional smaller items made from the same material or material with a lower magnetic susceptibility. This expanded list of essential patient support devices and other items will facilitate the clinical use of a comparable 7-Tesla scanner, or another UHF scanner with similar fringe field characteristics.

AB - Objective: Recently, the first 7-Tesla MR system was approved for clinical use in Europe and the United States. Unfortunately, few metallic objects have undergone testing in association with this high-field-strength scanner, including essential equipment such as patient support devices and other items. Therefore, the objective of this investigation was to assess metallic patient support devices and other items for translational attraction at 7-Tesla. Methods: Thirteen different metallic items (e.g., gurney, Mayo stand, step stool, utility table, wheelchair, etc.) underwent testing for translational attraction using a previously described methodology in association with a clinical 7-T MR system. The findings were categorized as pass (no translational attraction) or fail (the item was attracted by the scanner). Results: Every metallic item tested exhibited a lack of magnetism while in a worst-case use position and, thus, passed the test for translational attraction in associated with the 7-Tesla MR system. Conclusions: The different thirteen different metallic patient support devices and other items can be designated as MR Conditional at 7-T or less. Furthermore, because each item represented a worst-case with respect to its mass and the type of metallic material used for its fabrication, the results can be applied to 46 additional smaller items made from the same material or material with a lower magnetic susceptibility. This expanded list of essential patient support devices and other items will facilitate the clinical use of a comparable 7-Tesla scanner, or another UHF scanner with similar fringe field characteristics.

KW - 7-Tesla

KW - Magnetic resonance imaging (MRI)

KW - Medical equipment

KW - MRI safety

KW - Ultra-high-field (UHF)

UR - http://www.scopus.com/inward/record.url?scp=85058447158&partnerID=8YFLogxK

U2 - 10.1016/j.mri.2018.11.002

DO - 10.1016/j.mri.2018.11.002

M3 - Article

VL - 57

SP - 250

EP - 253

JO - Magnetic Resonance Imaging

JF - Magnetic Resonance Imaging

SN - 0730-725X

ER -