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Simple and effective technique of guided biopsy in a closed MRI system
E K Salomonowitz1, M Cejna, C Dewey
1Department of Radiology, AKH St. Pölten, Institute of Interventional Magnetic Resonance, Propst Führer Strasse 4, A-3100 St. Pölten, Austria.
Background:
Magnetic resonance (MR)-guided biopsies are generally regarded as complex interventions. We implemented interventional MR (IMR) with the resources available in and for practical application in a large (1100 beds) central hospital.
Methods:
This simple and straightforward IMR technique uses a step-by-step approach for localization, access route planning, biopsy, verification in at least two planes, and postoperative control. The technique has been used and evaluated unchanged for more than 400 punctures and interventions.
Results:
Contrast, signal, matrix options, and visibility of needle track and tip permit uncomplicated orientation. The mean duration of a biopsy is 19 min. The technique can be applied to all radiologic puncture settings without any technical or medical complications.
Conclusion:
The crucial step in implementing IMR is not to contemplate its application but to simply start applying the procedure.