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PubMed · 16084417

Musculoskeletal interventional MR imaging.

Roberto Blanco Sequeiros·John A Carrino
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Abstract

MR imaging guidance has great potential to direct the management of diagnostic and therapeutic procedures performed in the musculoskeletal region. To take full advantage of this excellent diagnostic tool, radiologists should also embrace the minimally invasive techniques available for MR imaging. This can be achieved by cooperation with clinical colleagues, multidisciplinary integration, and the development of efficient techniques for MR-guided procedures. By combining the excellent ability to recognize pathologic findings and the feasibility of performing interventional procedures, MR imaging is emerging as a powerful tool in diagnosing and treating musculoskeletal neoplasms and in performing minimally invasive procedures, such as spine injections.

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Biopsy, NeedleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMusculoskeletal DiseasesNerve BlockJournal ArticleReview

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BibTeXRIS

Roberto Blanco Sequeiros, John A Carrino. 2005. Musculoskeletal interventional MR imaging.. https://doi.org/10.1016/j.mric.2005.04.010

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Targeting difficult accessible breast lesions: MRI-guided needle localization using a freehand technique in a 3.0 T closed bore magnet.

PURPOSE: To report the accuracy of magnetic resonance imaging (MRI)-guided needle localization for diagnosis of MRI detected suspicious breast lesions located in difficult accessible regions of the breast, using the freehand method in a 3.0 T closed bore magnet. MATERIALS AND METHODS: In five patients with five MRI-only breast lesions underwent MRI-guided needle localization for histopathologic evaluation of the lesions. All interventional procedures were performed in a 3.0 T MRI system with the patient in prone position and by using a dedicated phased array breast coil. MRI-guided needle localizations were performed by using a freehand technique. In our study, the high-resolution scan allowed preprocedural localization of all lesions without use of contrast enhancement. In all cases contrast-enhanced MRI was performed after insertion of the wire to confirm the tip of the wire in direct contact with the enhancing lesion. RESULTS: Needle localizations were performed in five patients. Histopathologic evaluation of tissue after surgery excision biopsy revealed one lymph node, three invasive ductal carcinoma and one ductal carcinoma in situ. Lesion size varied from 6 to 30 mm. Mean duration time was 25 min. No complications occurred during the intervention method. In the patient with the benign lesion control MRI of the breast after 6 months confirmed lesion removal. CONCLUSIONS: MRI-guided needle localization by using a freehand technique in a 3.0 T closed bore magnet is a safe and accurate method for diagnosis of difficult accessible breast lesions only visible on MRI.

Biopsy, Needle↗