We will """"""""accelerate the application of biomedical technology"""""""" (cf. NIBIB mission) by extending the collocated virtual reality and haptic techniques pioneered by us in our simulation of a common form of brain surgery, ventriculostomy, to a new simulator for a common step of spinal surgery, pedicle screw placement. We will help """"""""improve health"""""""" by evaluating the spine surgery simulator for its realism and its effectiveness in teaching. ? The following applied research, fundamental research and evaluation tasks are proposed: ? Applied Research: ? 1. Create a three-dimensional model of the lumbar spine based on real patient CT data. ? 2. Produce a simulation of haptic force feedback to the surgeon's hand upon the insertion of a probe or similar instrument through human tissue or bone of different mechanical properties. ? 3. Simulate real-time bone volume removal or compression in probing of a screw hole. Couple accurate haptic force feedback with an after-the-fact shaded cylindrical hole model using a vertex shader. ? 4. Model the torque feedback from the screw hole tapping and manual screw insertion using a six degree of freedom (DOF) haptic robot (previous applications involved only a 3 DOF robot). ? 5. Create realistic 3D haptic and visual representations of the surgical spinal exposures in open surgery and mini-open surgery. Limit operating space through the tube retractor in the mini-open approach. Fundamental Research: ? 6. Surface Deformation Model. Develop a new model for the deformability of skin over the spine and apply it to the insertion of pedicle screws through the skin in minimally invasive surgery. ? 7. Volumetric modeling. Investigate a new method for the direct conversion of MRI data into 3D anatomical models that does not require the manual segmentation of CT scans. ? 8. Volume removal. Simulate real-time volume removal of bone during cutting or drilling operations. Evaluation Tasks: ? 9. Simulator. Grade students on simulator and judge its effectiveness by student improvement. ?
We will """"""""accelerate the application of biomedical technology"""""""" by extending the collocated virtual reality and haptic techniques pioneered by us in our simulation of a common form of brain surgery, ventriculostomy, to a new simulator for a common step of spinal surgery, pedicle screw placement. We will help 'improve health"""""""" by evaluating the spine surgery simulator for its realism and its effectiveness in teaching. ? ? ?
| Alaraj, Ali; Charbel, Fady T; Birk, Daniel et al. (2013) Role of cranial and spinal virtual and augmented reality simulation using immersive touch modules in neurosurgical training. Neurosurgery 72 Suppl 1:115-23 |
| Luciano, Cristian J; Banerjee, P Pat; Sorenson, Jeffery M et al. (2013) Percutaneous spinal fixation simulation with virtual reality and haptics. Neurosurgery 72 Suppl 1:89-96 |
| Turk, Aquilla S; Turner, Raymond D; Chaudry, M Imran (2011) Evaluation of the Nfocus LUNA, a new parent vessel occlusion device: a comparative study in a canine model. Neurosurgery 69:ons20-6 |
| Luciano, Cristian J; Banerjee, P Pat; Bellotte, Brad et al. (2011) Learning retention of thoracic pedicle screw placement using a high-resolution augmented reality simulator with haptic feedback. Neurosurgery 69:ons14-9; discussion ons19 |
