Safety and MRI artifact evaluation at 1.5 T of metallic mounting sheath of a marking clip inadvertently deployed at stereotactic biopsy.
AJR Am J Roentgenol
; 183(3): 825-9, 2004 Sep.
Article
em En
| MEDLINE
| ID: mdl-15333376
ABSTRACT
OBJECTIVE:
The purpose of our study was to assess the MRI risk factors for the patient after an unusual case of inadvertent deployment of the mounting sheath of a metallic clip used at stereotactic breast biopsy. MATERIALS ANDMETHODS:
We evaluated the materials for ferromagnetic properties, heating, and artifacts.RESULTS:
Our analysis showed significant deflection and prominent susceptibility artifacts of the sheath at 1.5 T, although the clip itself showed no deflection and only minimal artifact. Our study shows that a device and its delivery apparatus may have significantly different ferromagnetic properties.CONCLUSION:
In case of inadvertent deployment of the sheath, a delay of 6-8 weeks before MRI is recommended as a conservative approach to ensure tissue ingrowth and to minimize the chance of harm to the patient. In the case of metallic clips used for breast biopsy, caution is warranted when a portion of the device unintended for placement is introduced into the breast.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mama
/
Imageamento por Ressonância Magnética
/
Compostos Férricos
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
AJR Am J Roentgenol
Ano de publicação:
2004
Tipo de documento:
Article