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Initial Experience with Using a Structured Light 3D Scanner and Image Registration to Plan Bedside Subdural

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A new bedside navigation system using 3D scanning improves accuracy for chronic subdural hematoma evacuation via Subdural Evacuation Port System (SEPS) placement. This technology shows promise for increasing the success rate of this critical neurosurgical procedure.

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Area of Science:

  • Neurosurgery
  • Medical Imaging
  • Surgical Navigation

Background:

  • Chronic subdural hematoma evacuation is often performed using the Subdural Evacuation Port System (SEPS).
  • Accurate burr hole placement is crucial but challenging due to variable imaging and anatomy.
  • A novel bedside navigation system utilizing 3D scanning and image registration is proposed.

Purpose of the Study:

  • To evaluate the feasibility and accuracy of a novel bedside navigation system for SEPS placement.
  • To determine the potential of 3D scanning and image registration to improve burr hole accuracy.

Main Methods:

  • Part 1: Accuracy assessment using a 3D printed phantom head with fiducials.
  • Part 2: Clinical evaluation on 3 patients undergoing SEPS placement.

Main Results:

  • Phantom testing showed a registration error of less than 2.5 mm.
  • Clinical application in 5 SEPS placements resulted in burr hole accuracy within 1 cm of the planned location.
  • Posterior fiducial capture presented a technical challenge.

Conclusions:

  • A bedside cranial navigation system based on 3D scanning and image registration is feasible.
  • This system may enhance the success rate of bedside procedures like SEPS placement.
  • Overcoming challenges related to scanning hair and patient movement is necessary for widespread adoption.