Integrating tractography in pelvic surgery: a proof of concept

Abstract :

Objective: To show the interest of tractography in pelvic surgery by a demonstrative case of neurofibroma re- sected by robotic assisted laparoscopy. Summary background data: Although diffusion tensor magnetic resonance imaging, along with tractography algorithms, is increasingly included in image guided neurosurgery methods, it is less frequently used for the peripheral nervous system such as the pelvic sacral plexus. We report one observation demonstrating the interest of such image data for pelvic surgery. Methods: A 12-years-old girl with neurofibromatosis presented with a growing left pelvic neurofibroma on re- peated pelvic MRI with an increased SUV (2.83) on PET scan. A diffusion tensor pelvic MRI was performed before and after robotically assisted tumoral resection, and a tractography algorithm was applied on both images. Results: The pre-operative tractogram showed the nervous nature of the tumor in close contact with the left sacral plexus. Section of a nerve trunk encased in the neurofibroma was mandatory for the resection and well documented by the 3D enhanced vision provided by the robot. Post-operatively, the patient showed a slight paresthesia and dysesthesia of the left leg calf and of the plantar vault (left S2 territory), without any motor deficit. The post-operative tractogram showed a thinning of the left S2 sacral root and the disappearance of right aberrant nervous tracts. Conclusions: This clinical case validates the ability of pelvic tractography to deliver a proper imaging of the sacral nervous network and emphasizes the potential usefulness of this approach in pelvic surgery management, with perspectives of image-guided surgery.

Document type :
Journal articles
Complete list of metadatas

https://hal.telecom-paristech.fr/hal-02288079
Contributor : Telecomparis Hal <>
Submitted on : Friday, September 13, 2019 - 5:39:28 PM
Last modification on : Thursday, October 17, 2019 - 12:37:00 PM

Identifiers

  • HAL Id : hal-02288079, version 1

Citation

Cécile Muller, Eva Mille, Alessio Virzi, Jean-Baptiste Marret, Quoc Peyrot, et al.. Integrating tractography in pelvic surgery: a proof of concept. Journal of Pediatric Surgery Case Reports, 2019, 48. ⟨hal-02288079⟩

Share

Metrics

Record views

8