Computer-Assisted Laparoscopic Myomectomy by Augmenting the Uterus with Pre-operative MRI Data
SCHEDULE INFORMATION
Event Title
Session Title
Chair
Room
Start
End
Medical AR
Medical AR
Nassir Navab, TU Munich
HS1
12 Sep, 2014 04:00 PM
12 Sep, 2014 05:30 PM
Authors:
Toby Collins
Authors:
Daniel Pizarro
Authors:
Adrien Bartoli
Authors:
Nicolas Bourdel
Abstract:
An active research objective in Computer Assisted Intervention (CAI) is to
develop guidance systems to aid surgical teams in laparoscopic Minimal
Invasive Surgery (MIS) using Augmented Reality (AR). This involves
registering and fusing additional data from other modalities and overlaying
it onto the laparoscopic video in realtime. We present the first AR-based
image guidance system for assisted myoma localisation in uterine
laparosurgery. This involves a framework for semi-automatically registering a
pre-operative Magnetic Resonance Image (MRI) to the laparoscopic video with a
deformable model. Although there has been several previous works involving
other organs, this is the first to tackle the uterus. Furthermore, whereas
previous works perform registration between one or two laparoscopic images
(which come from a stereo laparoscope) we show how to solve the problem using
many images (e.g. 20 or more), and show that this can dramatically improve
registration. Also unlike previous works, we show how to integrate occluding
contours as registration cues. These cues provide powerful registration
constraints and should be used wherever possible. We present retrospective
qualitative results on a patient with two myomas and quantitative
semi-synthetic results. Our multi-image framework is quite general and could
be adapted to improve registration other organs with other modalities such as
CT.