title: Optical techniques for 3D surface reconstruction in computer-assisted laparoscopic surgery.
abstract: One of the main challenges for computer-assisted surgery (CAS) is to determine the intra-operative morphology and motion of soft-tissues. This information is prerequisite to the registration of multi-modal patient-specific data for enhancing the surgeon's navigation capabilities by observing beyond exposed tissue surfaces and for providing intelligent control of robotic-assisted instruments. In minimally invasive surgery (MIS), optical techniques are an increasingly attractive approach for in vivo 3D reconstruction of the soft-tissue surface geometry. This paper reviews the state-of-the-art methods for optical intra-operative 3D reconstruction in laparoscopic surgery and discusses the technical challenges and future perspectives towards clinical translation. With the recent paradigm shift of surgical practice towards MIS and new developments in 3D optical imaging, this is a timely discussion about technologies that could facilitate complex CAS procedures in dynamic and deformable anatomical regions.
authors.affiliation: Junior Group Computer-Assisted Interventions, Div. of Medical and Biological Informatics, German Cancer Research Center (DKFZ), Germany. Electronic address: l.maier-hein@dkfz-heidelberg.de.
authors.forename: L
authors.initials: L
authors.lastname: Maier-Hein
authors.forename: P
authors.initials: P
authors.lastname: Mountney
authors.forename: A
authors.initials: A
authors.lastname: Bartoli
authors.forename: H
authors.initials: H
authors.lastname: Elhawary
authors.forename: D
authors.initials: D
authors.lastname: Elson
authors.forename: A
authors.initials: A
authors.lastname: Groch
authors.forename: A
authors.initials: A
authors.lastname: Kolb
authors.forename: M
authors.initials: M
authors.lastname: Rodrigues
authors.forename: J
authors.initials: J
authors.lastname: Sorger
authors.forename: S
authors.initials: S
authors.lastname: Speidel
authors.forename: D
authors.initials: D
authors.lastname: Stoyanov
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010535:Laparoscopy / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000379:methods*
keywords: Computer-assisted interventions; Computer-assisted surgery; Shape-from-X; Surface reconstruction; Surgical vision