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Image Overlay. The Surgical Navigational Systems of Tomorrow Presenter: Jeff Hsin. In what types of surgery are they used for?. Neurosurgery Orthopedics Microsurgery Obstetrics Plastic Surgery Numerous others…. Guidance with 3D images .

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Image Overlay

The Surgical Navigational Systems of Tomorrow

Presenter: Jeff Hsin


In what types of surgery are they used for?

  • Neurosurgery

  • Orthopedics

  • Microsurgery

  • Obstetrics

  • Plastic Surgery

  • Numerous others…


Guidance with 3D images

  • A great deal of research has been invested in the possibility of using 3-D images of a particular surgical area in hopes to provide the surgeon with more surgical guidance.


Format of 3-D image:

  • View pre-operational 3-D images in the form of two-dimensional sectional images displayed away from the surgical area


Present Day Techniques

  • View the computer display showing the image


Present Day Techniques

  • View the computer display showing the image

  • reconstruct and formulate the 3-D image in his head


Present Day Techniques

  • View the computer display showing the image

  • reconstruct and formulate the 3-D image in his head

  • relate the 3-D image, now stored in his head, with the actual patient’s body when conducting the operation


Why this needs to change.

  • The quality of reconstruction of the image in the surgeon’s mind is dependent upon his surgical experience as well as his anatomical knowledge.


Why Else Does This Need to Change?

  • Disruptive in the flow of surgery

  • Leaves room for considerable margins of error


IS THERE A SOLUTION???


IMAGE OVERLAY SYSTEM


What Is It?

  • A display technique that will superimpose computer-generated images over the surgeon’s direct view of the patient’s surgical area


Who/What are the team-players of 3D Image Overlay?


Computer Graphics Work Station

Indiglo-II R10K, made by Silicon Graphics, Inc


Semi-transparent Display


Position Tracking System

OptoTrak 3020, By Northern Digital


Registration and Transformation Software


Present Focus of Image Overlay

  • Intra-operative guidance

  • Surgical education


Intra-operative guidance

  • placement of the acetabular and femoral prosthetic implant components during total hip replacement surgery


Intra-operative guidance

  • placement of the acetabular and femoral prosthetic implant components during total hip replacement surgery

  • proper placement of screws or intramedullary rods in bone fragments


Intra-operative guidance

  • Neurosurgical procedures.


Surgical Education


Obstacles to Overcome

  • Accuracy –detrimental without it.


Obstacles to Overcome

  • Accuracy –detrimental without it.

  • Spontaneous changes that occur in biological system. E.g. deformation of skin


Obstacles to Overcome

  • Accuracy –detrimental without it.

  • Spontaneous changes that occur in biological system. e.g. deformation of skin

  • Tracking of the eye


Future of Surgical Systems


References

  • Blackwell M. Nikou C., DiGioia A, Kanade T: An Image Overlay System for Medical Data Visualization. Center For robotics and Computer Assisted Surgery, Carnegie Mellon University, Pittsburg, PA

  • Nakajima S., Orita S., Masamune K, Sakuma I, Dohi T, Nakamura K. Surgical Navigation System with Intuitive Three-Dimensional Display. Department of Biotechnology, Tokyo Denki University


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