AI Article Synopsis
- A new patient-mount navigation system has been developed to improve needle placement in CT-guided interventions, aiming to reduce operation time and patient X-ray exposure.
- The system consists of three key components that work together to create an enhanced imaging workflow similar to virtual biplane fluoroscopy, which aims to boost efficiency and safety in surgical procedures.
- Preclinical tests showed that the system's accuracy is comparable to existing navigation technologies, with minimal errors in positioning during controlled trials with physical phantoms.
Article Abstract
Background: CT-guided intervention is routinely performed in an iterative fashion that often leads to lengthy operation and high X-ray exposure to patients. To streamline the workflow, we develop a patient-mount navigation system for assisting needle placement in CT-guided interventions.
Methods: The system comprises three components, a miniature patient-mount tracking unit, an auto-registered reference-frame unit and an intuitive image-processing unit. The system is operated like a virtual biplane fluoroscopy with augmented CT reconstructed images to streamline the conventional CT-guided intervention workflow. Surgery efficiency and safety can be increased, while radiation for patients and surgeons can be reduced. Two preclinical validations were conducted to evaluate the technical applicability and accuracy of the system.
Results: The results of the rigid physical phantom test showed a machine position error of 1.6 mm and a tilting error of 1.5°. The results of the deformable porcine phantom test showed the operation position error to be 3.6 mm and tilting error to be 2.9°.
Conclusions: We concluded that the accuracy of our system is within the comparable range of the existing navigation systems.
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| http://dx.doi.org/10.1002/rcs.412 | DOI Listing |
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