PURPOSE: To describe new techniques for percutaneous biopsy with use of an open-configuration magnetic resonance (MR) imaging system with integrated frameless stereotaxic guidance tools. MATERIALS AND METHODS: In 28 patients, biopsy was performed in which the image plane was interactively controlled by the position of a hand-held probe attached to the biopsy needle. An icon integrated into the image was used to guide needle advancement in three planes orthogonal to the needle. In vitro measurements of spatial accuracy were also performed. RESULTS: Diagnostic tissue was retrieved in 25 of 28 patients. The system was most accurate near the isocenter with a maximum measured error of 3.1 mm within a sphere of radius 2.5 cm about the isocenter. CONCLUSION: MR-guided biopsy with a frameless stereotaxic technique is safe and accurate. Image feedback is near real time, and the procedure is interactive. These techniques may be used to perform MR-guided biopsies and to place probes for MR-guided therapies.
PURPOSE: To describe new techniques for percutaneous biopsy with use of an open-configuration magnetic resonance (MR) imaging system with integrated frameless stereotaxic guidance tools. MATERIALS AND METHODS: In 28 patients, biopsy was performed in which the image plane was interactively controlled by the position of a hand-held probe attached to the biopsy needle. An icon integrated into the image was used to guide needle advancement in three planes orthogonal to the needle. In vitro measurements of spatial accuracy were also performed. RESULTS: Diagnostic tissue was retrieved in 25 of 28 patients. The system was most accurate near the isocenter with a maximum measured error of 3.1 mm within a sphere of radius 2.5 cm about the isocenter. CONCLUSION: MR-guided biopsy with a frameless stereotaxic technique is safe and accurate. Image feedback is near real time, and the procedure is interactive. These techniques may be used to perform MR-guided biopsies and to place probes for MR-guided therapies.
Authors: S Nahum Goldberg; Clement J Grassi; John F Cardella; J William Charboneau; Gerald D Dodd; Damian E Dupuy; Debra Gervais; Alice R Gillams; Robert A Kane; Fred T Lee; Tito Livraghi; John McGahan; David A Phillips; Hyunchul Rhim; Stuart G Silverman Journal: Radiology Date: 2005-04-21 Impact factor: 11.105
Authors: Joerg Stattaus; Stefan Maderwald; Hideo A Baba; Guido Gerken; Joerg Barkhausen; Michael Forsting; Mark E Ladd Journal: Eur Radiol Date: 2008-07-19 Impact factor: 5.315
Authors: Matthew J Riffe; Stephen R Yutzy; Yun Jiang; Michael D Twieg; Colin J Blumenthal; Daniel P Hsu; Li Pan; Wesley D Gilson; Jeffrey L Sunshine; Christopher A Flask; Jeffrey L Duerk; Dean Nakamoto; Vikas Gulani; Mark A Griswold Journal: Magn Reson Med Date: 2013-07-30 Impact factor: 4.668