Publications

During urologic surgery,ultrasound (US) is an established method for needle guidance, butdifficulty in visualizing the needle trajectory may add technicalcomplexity to the procedure. Needle guidance systems may simplifythese procedures. The … Read more

With optical cameras, many interventional navigation tasks previously relying on EM, optical, or mechanical guidance can be performed robustly, quickly, and conveniently. We developed a family of novel guidance systems … Read more

The Clear Guide ONE (Clear Guide Medical, Baltimore, MD) is a Computer-Assisted Instrument Guidance (CAIG) device, which optically tracks a procedure needle and calculates a “projected” path, which is displayed … Read more

This study explores the potential of a new device, the Clear Guide ONE system (CLEAR GUIDE MEDICAL, Baltimore, MD), for improved percutaneous ultrasound-guided vascular access.

We characterize the performance of an ultrasound+computed tomography image fusion and instrument guidance system on phantoms, animals, and patients. The system is based on a visual tracking approach. Using multi-modality … Read more

Background: Ultrasound guidance for needle-based interventions is a widespread approach to assist in precise targeting of anatomical structures for diagnostic (e.g., for biopsies) or therapeutic (e.g., tumor ablation or anesthesia) … Read more

This work explores the suitability of low-cost sensors for “serious” medical applications, such as tracking of interventional tools in the OR, for simulation, and for education. Although such tracking – … Read more

Handheld ultrasound is useful for intra-operative imaging, but requires additional tracking hardware to be useful in navigated intervention settings, such as biopsies, ablation therapy, injections etc. Unlike common probe-andneedle tracking … Read more