Magnetic susceptibility effects and their application in the development of new ferromagnetic catheters for magnetic resonance imaging

D. L. Rubin, A. V. Ratner, S. W. Young

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Newly developed ferromagnetic catheters (Fe-Caths) are more conspicuous than conventional radiographic catheters (Rad-Caths) on magnetic resonance (MR) images because they produce recognizable ferromagnetic signal patterns (FSPs). To determine how MRI parameters influence these patterns, the imaging characteristics of nine Fe-Caths (ferromagnetic concentration 0.01 to 1.0 weight/weight%) were studied systematically and compared with three Rad-Caths. All catheters were studied in stationary and moving phantoms at mid-field (0.38 T) and high-field (1.5 T) strength using spin-echo and gradient-echo pulse sequences. Rad-Caths always produced a signal void. Fe-Caths produced FSPs, the size of which depended on the orientation of the catheter with respect to the main magnetic field, the concentration of ferromagnetic agent in the catheter, and the direction and strength of the frequency encoding gradient. When Fe-Caths were positioned perpendicular to the main magnetic field, they produced FSPs; however, when they were parallel to the main magnetic field, Fe-Caths produced no FSP, thus having a similar appearance to the Rad-Caths. Ferromagnetic catheters produce conspicuous patterns on MR images that depend on catheter orientation in the main magnetic field and vary predictably with the MRI parameters.

Original languageEnglish (US)
Pages (from-to)1325-1332
Number of pages8
JournalInvestigative Radiology
Volume25
Issue number12
StatePublished - 1990
Externally publishedYes

Fingerprint

Catheters
Magnetic Resonance Imaging
Magnetic Fields
Magnetic Resonance Spectroscopy
Weights and Measures

Keywords

  • catheterization
  • ferromagnetism
  • magnetic resonance
  • magnetic susceptibility

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Magnetic susceptibility effects and their application in the development of new ferromagnetic catheters for magnetic resonance imaging. / Rubin, D. L.; Ratner, A. V.; Young, S. W.

In: Investigative Radiology, Vol. 25, No. 12, 1990, p. 1325-1332.

Research output: Contribution to journalArticle

@article{c6a8b73c0a0a40f6b3e2ab6960e5740e,
title = "Magnetic susceptibility effects and their application in the development of new ferromagnetic catheters for magnetic resonance imaging",
abstract = "Newly developed ferromagnetic catheters (Fe-Caths) are more conspicuous than conventional radiographic catheters (Rad-Caths) on magnetic resonance (MR) images because they produce recognizable ferromagnetic signal patterns (FSPs). To determine how MRI parameters influence these patterns, the imaging characteristics of nine Fe-Caths (ferromagnetic concentration 0.01 to 1.0 weight/weight{\%}) were studied systematically and compared with three Rad-Caths. All catheters were studied in stationary and moving phantoms at mid-field (0.38 T) and high-field (1.5 T) strength using spin-echo and gradient-echo pulse sequences. Rad-Caths always produced a signal void. Fe-Caths produced FSPs, the size of which depended on the orientation of the catheter with respect to the main magnetic field, the concentration of ferromagnetic agent in the catheter, and the direction and strength of the frequency encoding gradient. When Fe-Caths were positioned perpendicular to the main magnetic field, they produced FSPs; however, when they were parallel to the main magnetic field, Fe-Caths produced no FSP, thus having a similar appearance to the Rad-Caths. Ferromagnetic catheters produce conspicuous patterns on MR images that depend on catheter orientation in the main magnetic field and vary predictably with the MRI parameters.",
keywords = "catheterization, ferromagnetism, magnetic resonance, magnetic susceptibility",
author = "Rubin, {D. L.} and Ratner, {A. V.} and Young, {S. W.}",
year = "1990",
language = "English (US)",
volume = "25",
pages = "1325--1332",
journal = "Investigative Radiology",
issn = "0020-9996",
publisher = "Lippincott Williams and Wilkins",
number = "12",

}

TY - JOUR

T1 - Magnetic susceptibility effects and their application in the development of new ferromagnetic catheters for magnetic resonance imaging

AU - Rubin, D. L.

AU - Ratner, A. V.

AU - Young, S. W.

PY - 1990

Y1 - 1990

N2 - Newly developed ferromagnetic catheters (Fe-Caths) are more conspicuous than conventional radiographic catheters (Rad-Caths) on magnetic resonance (MR) images because they produce recognizable ferromagnetic signal patterns (FSPs). To determine how MRI parameters influence these patterns, the imaging characteristics of nine Fe-Caths (ferromagnetic concentration 0.01 to 1.0 weight/weight%) were studied systematically and compared with three Rad-Caths. All catheters were studied in stationary and moving phantoms at mid-field (0.38 T) and high-field (1.5 T) strength using spin-echo and gradient-echo pulse sequences. Rad-Caths always produced a signal void. Fe-Caths produced FSPs, the size of which depended on the orientation of the catheter with respect to the main magnetic field, the concentration of ferromagnetic agent in the catheter, and the direction and strength of the frequency encoding gradient. When Fe-Caths were positioned perpendicular to the main magnetic field, they produced FSPs; however, when they were parallel to the main magnetic field, Fe-Caths produced no FSP, thus having a similar appearance to the Rad-Caths. Ferromagnetic catheters produce conspicuous patterns on MR images that depend on catheter orientation in the main magnetic field and vary predictably with the MRI parameters.

AB - Newly developed ferromagnetic catheters (Fe-Caths) are more conspicuous than conventional radiographic catheters (Rad-Caths) on magnetic resonance (MR) images because they produce recognizable ferromagnetic signal patterns (FSPs). To determine how MRI parameters influence these patterns, the imaging characteristics of nine Fe-Caths (ferromagnetic concentration 0.01 to 1.0 weight/weight%) were studied systematically and compared with three Rad-Caths. All catheters were studied in stationary and moving phantoms at mid-field (0.38 T) and high-field (1.5 T) strength using spin-echo and gradient-echo pulse sequences. Rad-Caths always produced a signal void. Fe-Caths produced FSPs, the size of which depended on the orientation of the catheter with respect to the main magnetic field, the concentration of ferromagnetic agent in the catheter, and the direction and strength of the frequency encoding gradient. When Fe-Caths were positioned perpendicular to the main magnetic field, they produced FSPs; however, when they were parallel to the main magnetic field, Fe-Caths produced no FSP, thus having a similar appearance to the Rad-Caths. Ferromagnetic catheters produce conspicuous patterns on MR images that depend on catheter orientation in the main magnetic field and vary predictably with the MRI parameters.

KW - catheterization

KW - ferromagnetism

KW - magnetic resonance

KW - magnetic susceptibility

UR - http://www.scopus.com/inward/record.url?scp=0025674137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025674137&partnerID=8YFLogxK

M3 - Article

C2 - 2279913

AN - SCOPUS:0025674137

VL - 25

SP - 1325

EP - 1332

JO - Investigative Radiology

JF - Investigative Radiology

SN - 0020-9996

IS - 12

ER -