Publication

Real-time biplanar needle tracking for interventional MR imaging procedures

Journal Paper/Review - Nov 1, 1995

Units
Keywords
PubMed
Doi
Link
Contact

Citation
Leung D, Debatin J, Wildermuth S, Heske N, Dumoulin C, Darrow R, Hauser M, Davis C, von Schulthess G. Real-time biplanar needle tracking for interventional MR imaging procedures. Radiology 1995; 197:485-8.
Project
Type
Journal Paper/Review (English)
Journal
Radiology 1995; 197
Publication Date
Nov 1, 1995
Issn Print
0033-8419
Issn Electronic
Pages
485-8
Publisher
Brief description/objective

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.