- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT01474694
Accuracy Assessment for Computer-assisted Surgical Interventions of the Liver (CALS)
Accuracy Assessment for Computer-assisted Surgical Interventions of the Liver: A Prospective, Non Randomized Study
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Background
The aim of this study is to analyze the available accuracy of a computer-assisted approach to liver surgery and microwave ablation. The term 'computer-assisted' refers to 1) using 3D models of patient anatomy for extended orientation during the planning of the intervention and 2) using an image guidance system (similar to a GPS in a car) that allows for precise targeting of desired anatomical structures (e.g. intrahepatic tumor, bile ducts / vasculature) in the setting of successfully treating liver malignancies. Furthermore, we would like to demonstrate, that image guided open liver surgery is technically feasible, whenever the correlation between preoperative image-guided data and the intraoperative setting can be achieved with a known accuracy.
Eventually, this technology, like in other surgical domains, will lead to successively implemented technical guiding functionalities that could potentially improve patient outcome.
Objective
To date, first systems (CE marked medical devices) are available that have been specifically developed for image-guided open liver surgery. The systems tracks positions of surgical instruments in or near the target organs and visualizes the instruments position in correlation to patients medical image data (i.e. 3D-CT) on the computer screen. Surgeons benefit from a view to a virtual scene (on a computer screen) in which CT images, together with models of the vascular structures, tumors and organ boundaries, are intuitively visible. The surgeon can see the moving instrument, just like the movement of a car can be seen in a GPS system
Methods
In patients requiring extensive surgery (eg. extended right hemihepatectomy), accurate calculations of the remaining liver volume are essential to avoid postoperative liver failure with potentially serious postoperative complications or even death, resulting from an inadequate remaining liver volume (ie "small-for-size syndrome"). In high-risk liver resections, use of computer programs, such as MeVis (MeVis Medical Solutions Inc.), provide the surgeon with accurate preoperative information, allowing him / her to judge the feasibility of the planned surgical resection based on preoperative liver volume analysis and evaluation of the planned resection line in relation to essential structures (ie. major vessels / bile ducts).
Type d'étude
Inscription (Réel)
Contacts et emplacements
Lieux d'étude
-
-
-
Berne, Suisse, 3010
- Dep. of Visceral and Transplant Surgery, Bern University Hospital
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- 1.Written informed consent
- 2.Male patients and non-pregnant, non-lactating females aged ≥18 years of age (negative serum/urine pregnancy test result at screening)
- 3.Patients must be candidates for surgical liver resection and/or MWA (at least one anatomical segment) of primary or metastatic liver cancer. The liver tumors must be present on preoperative imaging study (CT and/or MRI).
Exclusion Criteria
- 1.Any condition which, in the judgment of the clinical investigator or his designee, might increase the risk to the subject or decrease the chance of obtaining satisfactory data to achieve the objectives of the study.
- 2.A mental condition rendering the patient unable to provide informed consent.
- 3.Patients with hereditary hematological / coagulation disorders unrelated to their liver disease or cirrhosis of the liver classified as Child's B or C.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
---|---|
TRE, measuring the error in the prediction of a surgical target location when using the navigation system.
Délai: 12 months
|
12 months
|
Mesures de résultats secondaires
Mesure des résultats |
Délai |
---|---|
1.Identification of suitable landmarks for registration
Délai: 15 months
|
15 months
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Vanessa Banz, Dr. med., Bern University Hospital
- Chercheur principal: Daniel Candinas, Prof. Dr. med., Bern University Hospital
Publications et liens utiles
Publications générales
- Peterhans M, vom Berg A, Dagon B, Inderbitzin D, Baur C, Candinas D, Weber S. A navigation system for open liver surgery: design, workflow and first clinical applications. Int J Med Robot. 2011 Mar;7(1):7-16. doi: 10.1002/rcs.360. Epub 2010 Oct 29.
- Gavaghan KA, Peterhans M, Oliveira-Santos T, Weber S. A portable image overlay projection device for computer-aided open liver surgery. IEEE Trans Biomed Eng. 2011 Jun;58(6):1855-64. doi: 10.1109/TBME.2011.2126572. Epub 2011 Mar 14.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 063/11
- Eureka 6201/5/Ae
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .
Essais cliniques sur Abdominal surgery
-
ARCAGY/ GINECO GROUPRecrutementCancer de l'ovaire stade IIIC | Cancer de l'ovaire stade IV | Cancer de l'ovaire stade IIIbFrance
-
University Hospital Inselspital, BerneComplétéEssai contrôlé randomisé | Shunt péritonéal ventriculaire | Complications de shunt | Échec du shuntSuisse
-
Faizan AhmedActif, ne recrute pasMaladie de Parkinson | Hypotension orthostatiqueCanada
-
Dr. Faruk SemizInscription sur invitation
-
University of TriesteComplété
-
National Cancer Centre, SingaporeComplétéMaladies thyroïdiennesSingapour
-
Mansoura UniversityPas encore de recrutement
-
Istanbul University - Cerrahpasa (IUC)RecrutementTroubles nutritionnels | Rôle de l'infirmière | Massage | Unités de soins intensifs pédiatriquesTurquie
-
Universiti Putra MalaysiaInscription sur invitationMyasthénie expérimentaleChine
-
The Whittington Hospital NHS TrustComplété