MR-guided liver biopsy within a short, wide-bore 1.5 Tesla MR system.
The purpose of this study was to evaluate the diagnostic efficacy of magnetic resonance (MR)-guided biopsy of focal liver lesions within a short, wide-bore 1.5-T MR system and to determine the duration and accuracy of needle placement using MR fluoroscopy guidance in 25 patients. Accuracy of needle...
| Publicado en: | European Radiology Vol. 18; no. 12; pp. 2865 - 2874 |
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| Autores principales: | , , , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Dec2008
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105570950&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105570950 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Dec2008 vid: 18 iid: 12 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105570950 35166609 NLM18641994 2010095282 10.1007/s00330-008-1088-5 NLM18641994 105570950 ppf: 2865 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: MR-guided liver biopsy within a short, wide-bore 1.5 Tesla MR system. aug: au: Stattaus J Maderwald S Baba HA Gerken G Barkhausen J Forsting M Ladd ME Stattaus, Joerg Maderwald, Stefan Baba, Hideo A Gerken, Guido Barkhausen, Joerg Forsting, Michael Ladd, Mark E affil: Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany sug: subj: Biopsy, Needle Equipment and Supplies Liver Neoplasms Pathology Liver Pathology Magnetic Resonance Imaging Equipment and Supplies Therapy, Computer Assisted Equipment and Supplies Adult Aged Aged, 80 and Over Biopsy, Needle Methods Equipment Design Equipment Failure Female Magnetic Resonance Imaging Methods Male Middle Age Reproducibility of Results Sensitivity and Specificity Human Adult: 19-44 years Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: The purpose of this study was to evaluate the diagnostic efficacy of magnetic resonance (MR)-guided biopsy of focal liver lesions within a short, wide-bore 1.5-T MR system and to determine the duration and accuracy of needle placement using MR fluoroscopy guidance in 25 patients. Accuracy of needle placement was evaluated in two orthogonal planes, and the out-of-plane angle of needle deflection was measured. Needle positioning was characterised subjectively as centred, peripheral, or exterior relative to the lesion. Exterior positioning was corrected by a step-by-step procedure. Surgical resection (n = 6), previous histologies (n = 8), or clinical/radiological follow-up (n = 11) served as the 'gold standard'. The guidance needle could be placed successfully using MR fluoroscopy in 20 of 25 patients (80%). Needle placement was rated as 'centred' in 11 and as 'peripheral' in nine patients. Median needle deflection was 2.6 degrees, with a median deviation of 3.4 mm. In five patients, the direct approach failed or was rated as 'exterior'; therefore, repositioning after needle stabilisation with a stainless-steel stylet was necessary. The diagnostic yield of all biopsies was: sensitivity 95.5%, specificity 100.0% and accuracy 96.0%. In conclusion, MR-guided biopsies in a short, wide-bore MR system yielded highly reliable biopsy results, and in most cases the direct approach with MR fluoroscopy guidance proved to be fast and accurate. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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