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Verfasst von:Wagner, Martin [VerfasserIn]   i
 Nickel, Felix [VerfasserIn]   i
 Fischer, Lars [VerfasserIn]   i
 Kenngott, Hannes Götz [VerfasserIn]   i
Titel:Computer-assisted 3D bowel length measurement for quantitative laparoscopy
Verf.angabe:Martin Wagner, Benjamin Friedrich Berthold Mayer, Sebastian Bodenstedt, Katherine Stemmer, Arash Fereydooni, Stefanie Speidel, Rüdiger Dillmann, Felix Nickel, Lars Fischer, Hannes Götz Kenngott
E-Jahr:2018
Jahr:5 March 2018
Umfang:10 S.
Fussnoten:Gesehen am 16.04.2019
Titel Quelle:Enthalten in: Surgical endoscopy and other interventional techniques
Ort Quelle:New York : Springer-Verlag, 2002
Jahr Quelle:2018
Band/Heft Quelle:32(2018), 9, Seite 4052-4061
ISSN Quelle:1432-2218
Abstract:BACKGROUND: This study aimed at developing and evaluating a tool for computer-assisted 3D bowel length measurement (BMS) to improve objective measurement in minimally invasive surgery. Standardization and quality of surgery as well as its documentation are currently limited by lack of objective intraoperative measurements. To solve this problem, we developed BMS as a clinical application of Quantitative Laparoscopy (QL). - METHODS: BMS processes images from a conventional 3D laparoscope. Computer vision algorithms are used to measure the distance between laparoscopic instruments along a 3D reconstruction of the bowel surface. Preclinical evaluation was performed in phantom, ex vivo porcine, and in vivo porcine models. A bowel length of 70 cm was measured with BMS and compared to a manually obtained ground truth. Afterwards 70 cm of bowel (ground truth) was measured and compared to BMS. - RESULTS: Ground truth was 66.1 ± 2.7 cm (relative error + 5.8%) in phantom, 65.8 ± 2.5 cm (relative error + 6.4%) in ex vivo, and 67.5 ± 6.6 cm (relative error + 3.7%) in in vivo porcine evaluation when 70 cm was measured with BMS. Using 70 cm of bowel, BMS measured 75.0 ± 2.9 cm (relative error + 7.2%) in phantom and 74.4 ± 2.8 cm (relative error + 6.3%) in ex vivo porcine evaluation. After thorough preclinical evaluation, BMS was successfully used in a patient undergoing laparoscopic Roux-en-Y gastric bypass for morbid obesity. - CONCLUSIONS: QL using BMS was shown to be feasible and was successfully translated from studies on phantom, ex vivo, and in vivo porcine bowel to a clinical feasibility study.
DOI:doi:10.1007/s00464-018-6135-y
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1007/s00464-018-6135-y
 DOI: https://doi.org/10.1007/s00464-018-6135-y
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:3D laparoscopy
 Bowel measurement
 Computer-assisted surgery
 Quantitative laparoscopy
 Roux-en-Y gastric bypass
K10plus-PPN:1663278881
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