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European Radiology

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01-03-2015 | Interventional

Evaluation of percutaneous biopsies of renal masses under MRI-guidance: a retrospective study about 26 cases

Authors: J. Garnon, A. Schlier, X. Buy, G. Tsoumakidou, M. de Mathelin, E. Breton, A. Gangi

Published in: European Radiology | Issue 3/2015

Abstract

Objective

To determine whether MRI allows safe and accurate guidance for biopsies of renal masses.

Materials and methods

Between May 2010 and September 2013, 26 patients (15 men and 11 women) with 26 renal masses underwent MRI-guided percutaneous biopsy. For each patient, we retrospectively collected the epidemiological, procedural and histopathological data.

Results

Mean size of tumour was 3.6 cm (range 0.6 – 9 cm). Mean procedure time was 48 minutes (range 37 – 70 min). Malignancy was found in the percutaneous samples in 81 % (21/26) of the masses. All these cases were considered as true positive biopsies. Benignity was found in the percutaneous samples in 5/26 (19 %) of the masses but was confirmed only in 3 cases. The other 2 cases included one false negative case and one undetermined biopsy, as patient was lost to follow-up. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of this study were 95.4 %, 100 %, 100 %, 75 % and 96 %, respectively

Conclusion

MRI-guidance is safe and accurate to target renal masses.

Key Points

• Percutaneous interventions can be performed with MRI-guidance

• MRI offers real-time multiplanar imaging capabilities without radiation

• MRI-guidance allows to target renal tumours

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Title: Evaluation of percutaneous biopsies of renal masses under MRI-guidance: a retrospective study about 26 cases
Authors: J. Garnon
A. Schlier
X. Buy
G. Tsoumakidou
M. de Mathelin
E. Breton
A. Gangi
Publication date: 01-03-2015
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 3/2015
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-014-3449-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Evaluation of percutaneous biopsies of renal masses under MRI-guidance: a retrospective study about 26 cases

Abstract

Objective

Materials and methods

Results

Conclusion

Key Points

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Materials and methods

Results

Conclusion

Key Points

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