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Application of Real-Time 3D Navigation System in CT-Guided Percutaneous Interventional Procedures: A Feasibility
Priya Bhattacharji1,2, William Moore1,2
1Department of Radiology, State University of New York at Stony Brook University Hospital, HSC Level IV, Room 120, Stony Brook, NY 11794, USA.
Radiology Research and Practice
|November 29, 2017
Summary
This study evaluated a 3D navigation system for CT-guided procedures. The system demonstrated potential for accurate needle placement and seamless integration into existing workflows.
Area of Science:
- Medical Imaging
- Interventional Radiology
- Surgical Navigation
Background:
- Computed tomography (CT)-guided interventional procedures are crucial for diagnosis and treatment.
- Accurate instrument placement is vital for procedural success and patient safety.
- Existing navigation systems may have limitations in accuracy or workflow integration.
Purpose of the Study:
- To assess the accuracy of a quantitative 3D navigation system for CT-guided interventions.
- To evaluate the system's integration into clinical workflows.
- To determine the system's potential for enhancing precision needle placement.
Main Methods:
- A two-part study involving phantom and clinical evaluations.
- Phantom procedures (n=22) assessed 3D anatomy map registration and navigation accuracy.
- Clinical evaluation (n=21) in CT-guided thoracic and hepatic biopsies/ablations assessed navigation accuracy and workflow fitness.
Main Results:
- Phantom studies showed average registration error of 1.79 mm.
- Needle placement accuracy in phantoms ranged from 2.0 ± 0.7 mm to 3.0 ± 1.4 mm.
- Clinical evaluation yielded an average navigation accuracy of 4.6 ± 3.1 mm, with good workflow integration.
Conclusions:
- The 3D navigation system is compatible with existing CT-guided intervention workflows.
- The system shows potential for navigating precise needle placement in CT-guided procedures.
- Further validation may confirm its utility in improving procedural outcomes.
