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MR cone-beam CT fusion image overlay for fluoroscopically guided percutaneous biopsies in pediatric patients

MR cone-beam CT fusion image overlay for fluoroscopically guided percutaneous biopsies in pediatric patients PEDIATRIC RADIOLOGY Thakor, A. S., Patel, P. A., Gu, R., Rea, V., Amaral, J., Connolly, B. L. 2016; 46 (3): 407-412

Abstract

Lesions only visible on magnetic resonance (MR) imaging cannot easily be targeted for image-guided biopsy using ultrasound or X-rays but instead require MR guidance with MR-compatible needles and long procedure times (acquisition of multiple MR sequences). We developed an alternative method for performing these difficult biopsies in a standard interventional suite, by fusing MR with cone-beam CT images. The MR cone-beam CT fusion image is then used as an overlay to guide a biopsy needle to the target area under live fluoroscopic guidance. Advantages of this technique include (i) the ability for it to be performed in a conventional interventional suite, (ii) three-dimensional planning of the needle trajectory using cross-sectional imaging, (iii) real-time fluoroscopic guidance for needle trajectory correction and (iv) targeting within heterogeneous lesions based on MR signal characteristics to maximize the potential biopsy yield.

View details for DOI 10.1007/s00247-015-3479-5

View details for PubMedID 26563298