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PubMed · 7480698

Real-time biplanar needle tracking for interventional MR imaging procedures.

D A Leung·J F Debatin·S Wildermuth·N Heske·C L Dumoulin·R D Darrow·M Hauser·C P Davis·G K von Schulthess
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Abstract

PURPOSE: To evaluate real-time biplanar tracking of a specially designed needle with magnetic resonance (MR) imaging guidance. MATERIALS AND METHODS: The needle is made of polyetheretherketone and has a miniature radio-frequency coil incorporated into the tip. Tracking software on two workstations is used to compute three-dimensional coordinates of the coil and to display the position as a moving symbol in two imaging planes. Validation of needle tracking was performed in a harvested human liver. T2-weighted fast spin-echo images were used to target a 1-cm cyst. Success of needle placement was confirmed with aspiration and with updated gradient-recalled-echo images. RESULTS: The cyst was successfully targeted from different approaches. Tracking procedures were monitored in real time simultaneously on two separate images. CONCLUSION: Real-time biplanar needle tracking may prove to be useful for both diagnostic and therapeutic interventional MR imaging procedures.

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ArtifactsBenzophenonesBiocompatible MaterialsBiopsy, NeedleComputer SystemsCystsData DisplayElectronics, MedicalEquipment DesignHumansKetonesLiver DiseasesMagnetic Resonance ImagingMonitoring, PhysiologicNeedlesPolyethylene GlycolsPolymersPuncturesRadio WavesRadiology, InterventionalReproducibility of ResultsSignal Processing, Computer-AssistedSoftwareSuctionJournal Article

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D A Leung, J F Debatin, S Wildermuth, N Heske, C L Dumoulin, R D Darrow, M Hauser, C P Davis, G K von Schulthess. 1995. Real-time biplanar needle tracking for interventional MR imaging procedures.. https://doi.org/10.1148/radiology.197.2.7480698

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