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Augmented reality improves procedural efficiency and reduces radiation dose for CT-guided lesion targeting: a phantom
Brian J Park1, Stephen J Hunt2, Gregory J Nadolski2
1Oregon Health and Science, University School of Medicine, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA. bjinwoopark@gmail.com.
Scientific Reports
|October 30, 2020
Summary
Augmented reality (AR) headsets significantly improve CT-guided interventions for out-of-plane lesions. This technology reduces needle passes, radiation dose, and procedure time, enhancing targeting accuracy and operator performance.
Area of Science:
- Medical Imaging
- Interventional Radiology
- Surgical Technology
Background:
- Out-of-plane lesions present significant challenges for accurate targeting during CT-guided interventions.
- Traditional methods often involve multiple needle passes and increased radiation exposure.
- Augmented reality (AR) offers potential for enhanced 3D visualization and guidance.
Purpose of the Study:
- To evaluate the efficacy of AR headsets (HoloLens 2) in improving CT-guided lesion targeting.
- To compare procedural efficiency, radiation dose, and accuracy with and without AR guidance.
Main Methods:
- A prospective trial was conducted using an abdominal phantom.
- Eight operators performed needle passes with and without AR guidance.
- Key metrics included needle redirections, radiation dose, procedure time, and targeting accuracy.
Main Results:
- AR guidance reduced mean needle passes from 7.4 to 3.4 (p=0.011).
- Mean CT dose index decreased from 28.7 mGy to 16.9 mGy (p=0.009).
- Procedure time was halved with AR (4.42 min vs 8.93 min, p=0.027), and nontargeted lesion punctures decreased from 11.9% to 0%.
Conclusions:
- AR guidance significantly enhances procedural efficiency and reduces radiation exposure in CT-guided interventions.
- AR technology improves targeting accuracy and minimizes variability in operator performance.
- AR systems show promise for safer and more effective targeting of challenging out-of-plane lesions.
