AJR 2001; 177:159-163
© American Roentgen Ray Society
MR Imaging-Guided Biopsy and Therapeutic Intervention in a Closed-Configuration Magnet
Single-Center Series of 361 Punctures
Erich Salomonowitz1
1
Ludwig Boltzmann Institute of Interventional Magnetic Resonance at the
Department of Radiology, AKH St. Pölten, Propst
Führer Str. 4, A-3100 St.
Pölten, Austria.
OBJECTIVE. The purpose of the study was to evaluate practical
experience with interventional MR imaging in a closed-bore 1.5-T imaging
system. A total of 361 MR-guided biopsies were performed in 250 patients and
analyzed retrospectively. The technique comprised four steps: localization;
planning; action (cutting or aspiration biopsy, or instillation of a
therapeutic agent), with verification in two perpendicular planes; and
obtaining control scans.
CONCLUSION. The mean duration of a biopsy was 21 min; there were no
major complications. Image contrast, signal, matrix options, and visibility of
needle track and tip position permitted uncomplicated orientation. The
interventional MR technique could be applied in any puncture setting.

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Copyright © 2001 by the American Roentgen Ray Society.