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Abstract #0212

Spinal Infiltrations & Biopsies Using an Advanced Real-Time MR Guidance Approach: Preliminary Clinical Report

Elodie Breton1, Eva Rothgang2, 3, Li Pan2, Julien Garnon4, Georgia Tsoumakidou4, Xavier Buy4, Christine H. Lorenz2, Michel de Mathelin1, Afshin Gangi, 14

1LSIIT - AVR, University of Strasbourg - CNRS, Strasbourg, France; 2Center for Applied Medical Imaging, Siemens Corporate Research, Baltimore, MD, United States; 3Pattern Recognition Lab, Friedrich-Alexander University, Erlangen, Germany; 4Interventional Radiology Department, Nouvel Hpital Civil, Strasbourg, France

The multiplanar imaging capabilities of MR are of great advantage for real-time needle guidance. The focus of this work is to clinically evaluate an advanced MR guidance approach for percutaneous needle interventions providing an interactive, real-time multi-slice pulse sequence (Beat_IRTTT) in combination with an interventional MRI software package (Interactive Front End, IFE). This approach was used for 9 spinal infiltrations and 6 abdominal biopsies. To our experience, automatic real-time slice alignment greatly simplifies the workflow. The proposed real-time slice layout with three slices along the planned trajectory orthogonal to each other further allows for efficient and safe needle placement.

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Keywords

abdominal accessibility accurately acquisition adapted addition advanced advancement advantage aligned alignment allows anesthesia applied asterisk automatic automatically axial balanced bandwidth beat biopsies biopsy blade body breathing capabilities civil clinical clinically close coil coils combination complex consuming continuous control corporate criteria dataset decreased defined depth difficult double efficient even experienced exposure extended facilitates feasible field final front great guidance guided important included inclusion infiltration infiltrations initial interactive interactively intervention kidney layout limit liver local location manual marked matrix medical monitor needle needles oblique open orientations orthogonal otherwise package particular particularly path paths patient patients percutaneous placed placement planned planning positioning positions precise preliminary principal procedure procedures produces progress proposed providing pseudo pulse punctures radiologists radiology randomly real recognition reconstructed referred report reported resolution review safe scanner segment selecting simplifies slice slices software speed spinal spine step structures successfully surrounding switch switched target together towards trajectories trajectory tumor useful view visible yellow young