Publications

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Search for Publication


Year(s) from:  to 
Author:
Keywords (separated by spaces):

Endoscopic navigation for minimally invasive suturing

Christian Wengert, Lukas Bossard, Charles Baur, Gábor Székely, Philippe C. Cattin
Computer Aided Surgery
Vol. 13, No. 5, pp. 299 – 310, September 2008

Abstract

Manipulating small objects such as needles, screws or plates inside the human body during minimally invasive surgery can be very difficult for less experienced surgeons due to the loss of 3D depth perception. Classical navigation techniques are often incapable of providing support in such situations, as the augmentation of the scene with the necessary artificial markers - if possible at all - is usually cumbersome and leads to increased invasiveness. We present an approach relying solely on a standard endoscope as a tracking device for determining the pose of such objects, using the example of a suturing needle. The resulting pose information is then used to generate artificial 3D cues on the 2D screen to provide optimal support for surgeons during tissue suturing. In addition, if an external tracking device is provided to report the endoscope’s position, the suturing needle can be directly tracked in the world coordinate system. Furthermore, a visual navigation aid can be incorporated if a 3D surface is intraoperatively reconstructed from the endoscopic video stream or registered from preoperative imaging.


Download in pdf format
@Article{eth_biwi_00567,
  author = {Christian Wengert and Lukas Bossard and Charles Baur and Gábor Székely and Philippe C. Cattin},
  title = {Endoscopic navigation for minimally invasive suturing},
  journal = {Computer Aided Surgery},
  year = {2008},
  month = {September},
  pages = {299 – 310},
  volume = {13},
  number = {5},
  keywords = {Endoscopy, navigation, augmented reality, depth cues, suturing needle}
}