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PubMed · 7939234

[Percutaneous vertebral biopsy].

P Brugières·F Ricolfi·E Valiente·P Thomas·S Qanadli·A Gaston
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Abstract

CT-guided vertebral biopsy is a simple, non dangerous, and usually an effective method for the actiological diagnosis and the treatment of vertebral lesions. The authors detail the biopsy technique, the needles and the route used according to the anatomical distribution and the osteosclerotic or osteolytic aspect of the vertebral lesion. In 60% of ordinary infectious spondylodiscitis the biopsy is positive. Early diagnosis of tuberculous spondylodiscitis is usually possible only to anatomopathological examination on osteodiscal samples. In tumoral disease the association of biopsy and cytological specimens provides the best results, specially in osteolytic vertebral lesions.

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Biopsy, NeedleCervical VertebraeFemaleHumansLumbar VertebraeMaleOsteolysisOsteosclerosisSpinal DiseasesThoracic VertebraeTomography, X-Ray ComputedTuberculosis, SpinalJournal Article

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P Brugières, F Ricolfi, E Valiente, P Thomas, S Qanadli, A Gaston. 1994-06-15. [Percutaneous vertebral biopsy].. https://pubmed.ncbi.nlm.nih.gov/7939234/

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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↗