In Vivo Evaluation of Image Registration Techniques During Endovascular Repair

September 3, 2018 updated by: Norwegian University of Science and Technology
Fluoroscopy is traditionally used for guidance of endovascular aortic repair (EVAR). In order to minimize exposure to radiation and nephrotoxic contrast medium, it is possible to generate a navigation road map by registering the intraoperative images with preoperative computed tomography angiograph (CTA). In modern hybrid operating rooms, several commercial solutions for this exists today (e.g. Siemens Syngo iPilot, Phillips Vesselnavigator). In order to register (fuse) the preoperative and intraoperative imaging to each other, a registration algorithm has to be applied. Sufficient accuracy of this algorithm is crucial, for if it fails the road map cannot be used for intraoperative navigation. The purpose of this study is therefore to evaluate two different 3D registration algorithms with regard to registration accuracy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Two different registration algorithms will be tested:

  1. registration algorithm - centerline registration algorithm (Sintef, Trondheim) A catheter equipped with a position sensor records the travelled path of the instrument, which is assumed to be close to the centerline of the aorta. From the preoperative computer tomography scan (CT) the aorta is segmented and vessel centerline is extracted. The centerline from the position sensor recordings is registered to the extracted centerline of the preoperative CT.
  2. 3D-3D registration algorithm (Syngo iPilot, Siemens Medical Solutions, Munich). Intraoperative cone-beam-CT (CBCT) is registered to the preoperative CT

Study Type

Observational

Enrollment (Actual)

16

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Norway
      • Trondheim, Norway, 7030
        • St. Olavs Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients undergoing endovascular aortic repair at St. Olav Hospital, Trondheim, Norway

Description

Inclusion Criteria:

  • infrarenal or juxtarenal abdominal aortic aneurysm
  • undergoing EVAR
  • informed consent

Exclusion Criteria:

  • under 18 years

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Image registration
Procedure: Endovascular aortic repair
Endovascular aortic repair

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Registration accuracy of registration algorithms
Time Frame: Immediately
Measure the 3D spread between defined points (registration plate, bony landmarks at vertebrae, vessels if visable)
Immediately

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Norwegian University of Science and Technology

Collaborators

St. Olavs Hospital

Investigators

  • Study Director: Øystein Risa, Norwegian University of Science and Technology, Department of Circulation and Medical Imaging

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 19, 2017

Primary Completion (Actual)

April 30, 2018

Study Completion (Actual)

April 30, 2018

Study Registration Dates

First Submitted

April 11, 2017

First Submitted That Met QC Criteria

April 11, 2017

First Posted (Actual)

April 17, 2017

Study Record Updates

Last Update Posted (Actual)

September 5, 2018

Last Update Submitted That Met QC Criteria

September 3, 2018

Last Verified

September 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2016/533

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Aortic Aneurysm, Abdominal

Clinical Trials on Endovascular aortic repair

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Austria

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe