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NCT Number: NCT05268432

Development, Intraoperative Demonstration and Visualization of Surgical Assistance Functions

The aim of the planned study is the development of surgical assistance functions on the basis of clinical routine data and the evaluation of the technical feasibility of an intraoperative demonstration and visualization of such assistance functions in visceral surgery. Furthermore, this trial aims to provide preliminary data on the clinical outcome of such assistance systems.

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Key information

Conditions

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Department of Gastrointestinal-, Thoracic and Vascular Surgery University Hospital Carl Gustav Carus Technische Universität Dresden

Dresden, Saxony, 01307, Germany

Location status: Recruiting

Location contact

Fiona Kolbinger, Dr. med.

SUB_INVESTIGATOR

Marius Distler, Prof. Dr.

CONTACT

[email protected]

+49 351 458 18264

Stefanie Speidel, Prof. Dr.

SUB_INVESTIGATOR

About this study

The aim of the clinical trial is to create the conditions for the comprehensive scientific use of new technologies such as augmented and virtual reality, computer-aided navigation and robotics in surgery in order to use these technologies in the future for improved surgical therapy for the benefit of the patient and to support the treating surgical team. The IDEMONSTRATE study is divided into two study parts: the development of a surgical assistance function based on routinely collected clinical (image) data that displays the position of anatomical structures (e.g. blood vessels, organs, tumors) in real time and the technical evaluation of this assistance system in the clinical environment.

For the development of the surgical assistance function, data routinely collected as part of surgical inpatient treatment will be used. For research purposes (and explicitly not to prepare for approval as a medical device), a surgical assistance function is to be developed from this that displays the position of anatomical structures in real time during visceral surgical interventions. This system will then be evaluated in the second part of the study with regard to its technical feasibility and medical relevance.

For the evaluation of the developed assistance function in the context of clinical treatment, the patients and the staff involved will be informed separately. All patients who are eligible for inclusion in the evaluating part of the study are fully capable of giving their consent. All doctors who will take part in the evaluation of the developed algorithm in a clinical context are specialists in general or visceral surgery; these doctors are informed in detail about the risks and sources of error in the context of the application before the developed algorithm and the associated assistance function is used. The evaluation of the developed assistance function takes place exclusively in the context of planned interventions, not in emergency situations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Indication for surgery using a laparoscopic or open surgical camera, a surgical robot (e.g., DaVinci system), or an intraoperative imaging modality (e.g. sonography, intraoperative CT)
  • Patient understands German

Exclusion criteria

  • Lack of ability to consent

Treatment and study plan

Surgery with intraoperative imaging

Procedure

laparoscopic, robot-assisted or other intraoperative imaging (ultrasound, CT, MRI)

Primary outcomes

  1. Incidence of intraoperative technical errors of the applied assistance system

    Time frame: during surgery

    Major technical errors: system crash, calculation latency > 1 second, Image distortions

Secondary outcomes

  1. Evaluation of surgical skills

    Time frame: during surgery

    The IDEMONSTRATE skill assessment scale v1.0 will be used to rate surgical skill on a scale from 1 to 5, with higher scores indicating higher skill levels.

  2. Display accuracy of guidance functions

    Time frame: during surgery

    The IDEMONSTRATE display accuracy scale v1.0 will be used to rate display accuracy on a scale from 1 to 5, with higher scores indicating better display accuracy.

  3. Operating time [min]

    Time frame: during surgery

    Time from skin incision until placement of last skin staple/suture

  4. Duration of postoperative hospital stay [days]

    Time frame: At day of discharge, assessed up to 90 days

    Postoperative day 1 until day of discharge

  5. Duration of postoperative intermediate/intensive care unit stay [days]

    Time frame: At day of discharge, assessed up to 90 days

    Postoperative day 1 until day of discharge

  6. Frequency of peri-operative morbidity after resection

    Time frame: At day of discharge, assessed up to 90 days

    Frequency of peri-operative complications after surgery

  7. Kind of peri-operative morbidity after resection

    Time frame: At day of discharge, assessed up to 90 days

    Kind of peri-operative complications after surgery

  8. Assessment of usability of guidance system

    Time frame: 48 hours after surgery

    Surgeon questionnaire, the questionnaire qualitatively assesses nine items, each item scoring from "not at all" to "very much", evaluated individually

Study contacts

Contact information is provided by the study sponsor or research team.

Marius Distler, Prof. Dr.

CONTACT

[email protected]

+49 351045818264

Sponsors and collaborators

Lead sponsor

Technische Universität Dresden

Other

Registry information

Acronym: IDEMONSTRATE

Important dates

Study start
2021
Primary completion
2050
Study completion
2050
First posted
Mar 7, 2022
Registry last updated
Feb 10, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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