Magnetic resonance imaging of the metal clip in a breast: safety ana its availability as a negative marker

Kubota, Kazunori; Gomi, Naoya; Wakita, Toshihiko; Shibuya, Hitoshi; Kakimoto, Masaki; Osanai, Takayuki

doi:10.1007/bf02968003

Cited by 12 publications

(8 citation statements)

References 13 publications

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“…Metallic clips are stable in the 1.5 and 3 T MRI environment [53], not associated with substantial heating despite high-radiofrequency exposure [54].…”

Section: Biopsy Clips and The Mri Environmentmentioning

confidence: 99%

A plea for the biopsy marker: how, why and why not clipping after breast biopsy?

Thomassin‐Naggara

Lalonde

David

et al. 2011

Breast Cancer Res Treat

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In the last decade, percutaneous breast biopsies have become a standard for the management of breast diseases. Biopsy clips allow for precise lesion localization, thus minimizing the volume of breast to be resected at the time of surgery. With the development of many imaging techniques (including mammography, sonography, and breast magnetic resonance imaging), one of the challenges of the multidisciplinary became to synthesize all informations obtained from the various imaging procedures. The use of biopsy markers after percutaneous biopsy is one of the keys for optimal patient management, helping the radiologist to deal with multiple lesions, to insure correlation across different imaging modalities and to follow-up benign lesions, helping the oncologist by marking a tumor prior to neoadjuvant chemotherapy, helping the surgeon by facilitating preoperative needle localization, to precisely mark the margins of extensive disease and to guide intraoperative tumor resection, and helping the pathologist to insure the lesion of interest has been removed and to identify the region of interest in a mastectomy specimen. We believe biopsy clip markers should be deployed after all percutaneous interventions and present in this review the arguments to support this statement. Minimal indications for clip deployment will also be detailed.

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“…Metallic clips are stable in the 1.5 and 3 T MRI environment [53], not associated with substantial heating despite high-radiofrequency exposure [54].…”

Section: Biopsy Clips and The Mri Environmentmentioning

confidence: 99%

A plea for the biopsy marker: how, why and why not clipping after breast biopsy?

Thomassin‐Naggara

Lalonde

David

et al. 2011

Breast Cancer Res Treat

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“…In the present study, a newly developed, metallic tissue marker underwent MRI testing using standardized test procedures in consideration of current clinical MR systems, insofar as 3 Tesla was utilized for the assessment of magnetic field interactions and a relatively high, whole body averaged SAR level was applied during the heating evaluation. While other tissue markers have undergone MRI testing [ 6 , 8 , 20 – 22 ], to our knowledge, the evaluation of several of these markers did not follow the accepted standardized tests as recommended by the United States Food and Drug Administration (i.e., following the documents from the ASTM International) [ 23 ]. Therefore, the relative risks of using MRI in patients with those particular tissue markers are currently unknown.…”

Section: Discussionmentioning

confidence: 99%

“…Notably, an investigation by Genson et al [ 20 ] assessed a range of tissue markers and found that these markers created signal voids that were two to six times the diameter of the marker, which is potentially problematic because subsequent lesion detection may be compromised if the extent of the artifact is too extensive. Because of the low magnetic susceptibility value for gold [ 24 ], which is lower than the other materials that have been previously used for metallic markers, this new marker appears to be ideally suited for MRI applications where the extent of the artifact is an important consideration [ 6 , 20 – 22 ].…”

Section: Discussionmentioning

confidence: 99%

Assessment of MRI Issues at 3 Tesla for a New Metallic Tissue Marker

Cronenweth

Shellock

2015

International Journal of Breast Cancer

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Purpose. To assess the MRI issues at 3 Tesla for a metallic tissue marker used to localize removal areas of tissue abnormalities. Materials and Methods. A newly designed, metallic tissue marker (Achieve Marker, CareFusion, Vernon Hills, IL) used to mark biopsy sites, particularly in breasts, was assessed for MRI issues which included standardized tests to determine magnetic field interactions (i.e., translational attraction and torque), MRI-related heating, and artifacts at 3 Tesla. Temperature changes were determined for the marker using a gelled-saline-filled phantom. MRI was performed at a relatively high specific absorption rate (whole body averaged SAR, 2.9-W/kg). MRI artifacts were evaluated using T1-weighted, spin echo and gradient echo pulse sequences. Results. The marker displayed minimal magnetic field interactions (2-degree deflection angle and no torque). MRI-related heating was only 0.1°C above background heating (i.e., the heating without the tissue marker present). Artifacts seen as localized signal loss were relatively small in relation to the size and shape of the marker. Conclusions. Based on the findings, the new metallic tissue marker is acceptable or “MR Conditional” (using current labeling terminology) for a patient undergoing an MRI procedure at 3 Tesla or less.

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“…Hierbei sind Fälle beschrieben, die bis in Höhe der Hautinzision disloziert waren [25,26]. Als weitere Limitationen der Clipmarkierung sind zum einen der erhebliche Kostenaufwand und zum anderen das Problem der Maskierung der Lä-sion durch das Artefakt des Clips zu nennen [25,27].…”

Section: Markierung In Bauchlageunclassified

Stellenwert der MR-gestützten Lokalisation und Biopsie von Brustläsionen

Obenauer¹,

Grabbe²,

Knollmann³

2006

Fortschr Röntgenstr

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Contrast-enhanced dynamic MR mammography can provide important additional diagnostic information when performed for certain indications. When suspicious lesions are identified on MR mammography and cannot be reproduced using other imaging modalities, a decision must be made as to its management, i. e. further diagnostic work-up. One possibility is the short-term follow-up of such findings, resulting in higher costs and a possible delay in the start of treatment of a malignant lesion. An alternative to a follow-up is an MR-guided intervention. MR-compatible equipment has been developed for this purpose. This includes equipment specialized for percutaneous biopsy and preoperative localization. The following is an overview of the diagnostic value of MR-guided biopsy and preoperative localization including the relevant literature.

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Magnetic resonance imaging of the metal clip in a breast: safety ana its availability as a negative marker

Abstract: The safety and reliability of breast MR examination using a mammotome clip was demonstrated by both the mock examination and the breast examination. It is possible to localize of tumor spread regions based on the marker position using the clip as a negative signal marker.

Cited by 12 publications

References 13 publications

A plea for the biopsy marker: how, why and why not clipping after breast biopsy?

A plea for the biopsy marker: how, why and why not clipping after breast biopsy?

Assessment of MRI Issues at 3 Tesla for a New Metallic Tissue Marker

Stellenwert der MR-gestützten Lokalisation und Biopsie von Brustläsionen

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