Magnetic resonance imaging of microstructure transition in stainless steel

Peeters, Johannes M.; Faassen, E.E.H. van; Bakker, Chris J.G.

doi:10.1016/j.mri.2005.10.014

Cited by 9 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this simple case, the field distortion can be analytically determined. The local field around a homogeneously magnetized cylinder perpendicular to B 0 is described by 20 :…”

Section: Theorymentioning

confidence: 99%

See 1 more Smart Citation

Magnetic resonance imaging of phase transitions in nitinol

Peeters

Faassen

Bakker

2006

J Biomedical Materials Res

Self Cite

View full text Add to dashboard Cite

Magnetic resonance images are prone to artifacts caused by metallic objects. Apart from being a source of image degradation, such artifacts can also provide information about the magnetic properties of the foreign object. In this work, we aim to explore the potential of magnetic resonance imaging to detect and characterize changes in magnetic properties of nitinol undergoing temperature- or strain-induced phase changes. A spin echo and a gradient echo method were used to measure the magnetization changes related to the phase transformations. Results of both methods were in agreement and in accordance with the independent measurements using a vibrating sample magnetometer. Magnetic resonance imaging turned out to be a suitable method to visualize and quantify magnetization and phase changes in situ. It is not restricted to a single imaging strategy and does not require any modification of the test object. The results indicate the potential of magnetic resonance imaging to provide direct feedback of the thermomechanical state of the alloy.

show abstract

“…In this simple case, the field distortion can be analytically determined. The local field around a homogeneously magnetized cylinder perpendicular to B 0 is described by 20 :…”

Section: Theorymentioning

confidence: 99%

“…In this simple case, the field distortion can be analytically determined. The local field around a homogeneously magnetized cylinder perpendicular to B 0 is described by20: In this equation, B 0 is in z ‐direction and the main axis of the cylinder is parallel to the y ‐direction (see the coordinate system in Fig. 2).…”

Section: Theorymentioning

confidence: 99%

Magnetic resonance imaging of phase transitions in nitinol

Peeters

Faassen

Bakker

2006

J Biomedical Materials Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…There is a common assumption that metal susceptibility artifacts are reduced at lower field because absolute off-resonance, in Hertz (Hz), scales linearly with field strength. However, medical stainless steel contains iron, and therefore exhibits a hysteresis of magnetization versus magnetic field strength [7,8]. This results in saturation at magnetic fields within the range of clinical MRI systems, such that artifact size does not change with increased field strength for some devices.…”

Section: Introductionmentioning

confidence: 99%

Susceptibility artifacts from metallic markers and cardiac catheterization devices on a high-performance 0.55 T MRI system

Basar

Sonmez

Yildirim

et al. 2021

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Introduction: Visualization of passive devices during MRI-guided catheterizations often relies on a susceptibility artifact from the device itself or added susceptibility markers that impart a unique imaging signature. High-performance low field MRI systems offer reduced RF-induced heating of metallic devices during MRI-guided invasive procedures, but susceptibility artifacts are expected to diminish with field strength, reducing device visualization. In this study, field strength and orientation dependence of artifacts from susceptibility markers and metallic guidewires were evaluated using a prototype high-performance 0.55 T MRI system. Materials and methods:Artifact volume from nitinol and stainless steel passive susceptibility markers was quantified using histogram analysis of pixel intensities from three-dimensional gradient echo images at 0.55 T, 1.5 T and 3 T. In addition, visibility of commercially available clinical catheterization devices was compared between 0.55 T and 1.5 T using real-time bSSFP in phantoms and in vivo. Results:A low-tensile strength stainless-steel marker produced field strength-and orientationdependent artifact size (1.7 cm 3 , 1.95 cm 3 , 2.21 cm 3 at 0.55 T, 1.5 T, 3 T, respectively). Whereas, a high-tensile strength steel marker, of the same alloy, produced field strength-and orientationindependent artifact size (3.35 cm 3 , 3.41 cm 3 , 3.42 cm 3 at 0.55 T, 1.5 T, 3 T, respectively). Visibility of commercially available nitinol guidewires was reduced at 0.55 T, but imaging signature could be maintained using high-susceptibility stainless steel markers.

show abstract

“…SPIO particles have been exploited as contrast agents for noninvasive cell tracking to determine their biodistribution in different organs [7][8][9][10]. Susceptibility studies have been applied to material characterization [11,12] and particle identification in industrial systems [13].…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging method based on magnetic susceptibility effects to estimate bubble size in alveolar products: application to bread dough during proving

Guio

Musse

Benoit-Cattin

et al. 2009

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Magnetic resonance imaging has proven its potential application in bread dough and gas cell monitoring studies, and dynamic processes such as dough proving and baking can be monitored. However, undesirable magnetic susceptibility effects often affect quantification studies, especially at high fields. A new low-field method is presented based on local assessment of porosity in spin-echo imaging, local characterization of signal loss in gradient-echo imaging and prediction of relaxation times by simulation to estimate bubble radii in bread dough during proving. Maps of radii showed different regions of dough constituting networks which evolved during proving. Mean radius and bubble distribution were assessed during proving.

show abstract

Magnetic resonance imaging of microstructure transition in stainless steel

Cited by 9 publications

References 19 publications

Magnetic resonance imaging of phase transitions in nitinol

Magnetic resonance imaging of phase transitions in nitinol

Susceptibility artifacts from metallic markers and cardiac catheterization devices on a high-performance 0.55 T MRI system

Magnetic resonance imaging method based on magnetic susceptibility effects to estimate bubble size in alveolar products: application to bread dough during proving

Contact Info

Product

Resources

About